Bitcoin Wiki - User contributions [en]

Bitcoin Wiki:Community portal

2016-01-08T16:41:11Z

BitcoinX: Cleaned up a few URLs and added a couple too

== Bitcoin Community Forums on various platforms ==
* [http://bitcointalk.org/ Bitcointalk]
* [https://forum.bitcoin.com/ Bitcoin.com Forum]
* [https://bitco.in/forum/ Bitco.in]
* [http://www.reddit.com/r/Bitcoin/ /r/Bitcoin]
* [http://www.reddit.com/r/btc /r/btc]
* [http://www.reddit.com/r/bitcoin_uncensored /r/bitcoin_uncensored]
* [http://www.reddit.com/r/bitcoinxt /r/bitcoinxt]
* [https://plus.google.com/communities/115591368588047305300 Bitcoin Google+ Community]
* [http://bitcoin.stackexchange.com/ The Bitcoin StackExchange]
* [http://bitcointrading.com Bitcoin Trading Forum]
* [http://groups.google.com/group/bitcoin-discussion Bitcoin google group]
* [http://www.facebook.com/bitcoins Facebook page]
* [https://www.facebook.com/buy.bitcoin.news Facebook Bitcoin page]
* [http://www.facebook.com/bitcoin.p2p.digital.currency Facebook page]
* [http://www.facebook.com/bitcoinaustria Bitcoin Austria Facebook page]
* [http://www.facebook.com/groups/136003253120130 Facebook Group]
* [https://plus.google.com/107581642674912229828/ Bitcoin Google+]
* [http://hubski.com/tag?id=bitcoin Bitcoin on Hubski]

===Regions / Languages===
* [http://bitcoin-austria.at/ Bitcoin Austria]
* [https://coinforum.ca Canada's Bitcoin Community]
* [https://www.bitcoin-italia.org Bitcoin Italia]
* [http://www.bitcoin.org.il Isreali Bitcoin Community Forum]
* [http://bitcoincenterkorea.org Bitcoin Center Korea]
* [http://bitcoin.pl/forum/ Polish Bitcoin Community Forum]
* [http://btcsec.com/ BTCsec.com] Russian Website about Bitcoin
* [https://forum.btcsec.com/ BTCsec.com Bitcoin Community Forum (Russian)]
* [http://rubitcoin.com/ Russian Bitcoin Community Forum]
* [https://www.facebook.com/groups/bitcoinph/ Bitcoin Philippine Community]

=== Local Communities ===
''For an up-to-date list please see [http://www.reddit.com/r/Bitcoin/wiki/local_communities local communities]
* [http://www.reddit.com/r/ArgenBitcoin Argentina bitcoin community]
* [http://www.reddit.com/r/BitcoinAUS Australia bitcoin community]
* [http://www.reddit.com/r/BitcoinAT Austria bitcoin community]
* [http://www.reddit.com/r/BitcoinBE Belgian bitcoin community]
* [http://www.reddit.com/r/BrasilBitcoin Brazil bitcoin community]
* [http://www.reddit.com/r/BitcoinCA Canada bitcoin community]
* [http://www.reddit.com/r/BitcoinDK Denmark bitcoin community]
* [http://www.reddit.com/r/bitcoinsuomi Finland bitcoin community]
* [http://www.reddit.com/r/BitcoinFrance France bitcoin community]
* [http://www.reddit.com/r/BitcoinDE Germany bitcoin community]
* [http://www.reddit.com/r/BitcoinGhana Ghana bitcoin community]
* [http://www.reddit.com/r/BitcoinGT Guatemala bitcoin community]
* [http://www.reddit.com/r/BitcoinIndia India bitcoin community]
* [http://www.reddit.com/r/BitcoinIran Iran bitcoin community]
* [http://www.reddit.com/r/BitcoinIT Italy bitcoin community]
* [http://www.reddit.com/r/BitcoinJP Japan bitcoin community]
* [http://www.reddit.com/r/bitcoinlaos Laos bitcoin community]
* [http://www.reddit.com/r/BitcoinMalaysia Malaysia bitcoin community]
* [http://www.reddit.com/r/BITCOINMEX Mexico bitcoin community]
* [http://www.reddit.com/r/BitcoinNL The Netherlands bitcoin community]
* [http://www.reddit.com/r/BitcoinNO Norway bitcoin community]
* [http://www.reddit.com/r/BitcoinPL Poland bitcoin community]
* [http://www.reddit.com/r/bitcoinsouthafrica South Africa bitcoin community]
* [http://www.reddit.com/r/bitcoines Spain bitcoin community]
* [http://www.reddit.com/r/BitcoinSWE Sweden bitcoin community]
* [http://www.reddit.com/r/btctaiwan Taiwan bitcoin community]
* [http://www.reddit.com/r/BitcoinTR Turkey bitcoin community]
* [http://www.reddit.com/r/BitcoinUK United Kingdom bitcoin community]
** [http://www.reddit.com/r/BitcoinLondon London bitcoin community]
* [http://www.reddit.com/r/BitcoinUSA USA bitcoin community]
** [http://www.reddit.com/r/BitcoinBayArea Bay Area, CA bitcoin community]
** [http://www.reddit.com/r/DenverBitcoin/ Denver, CO bitcoin community]
** [http://www.reddit.com/r/BitcoinAsheville Asheville, NC bitcoin community]
** [http://www.reddit.com/r/BitcoinAlbuquerque Albuquerque, NM bitcoin community]
** [http://www.reddit.com/r/BitcoinNY New York City, NY bitcoin community]
** [http://www.reddit.com/r/BitcoinPA Pennsylvania bitcoin community]
** [http://www.reddit.com/r/BitcoinNashville Nashville, TN bitcoin community]
** [http://reddit.com/r/BitcoinAustin/ Austin, TX bitcoin community]
** [http://www.reddit.com/r/BitcoinSeattle Seattle, WA bitcoin community]
* [http://www.reddit.com/r/BitcoinVzla Venezuela bitcoin community]

== Bitcoin Community Groups on Bitcoin Wiki platform ==

=== Special interests ===
* [[Bitcoin Wiki]]-group

=== Geographically ===
* [[Espagna]] / [[Spain]] (E.)
* [[France]] / [[France]] (F.)
* [[Germany]] / [[Deutschland]] (D.)
* [[Netherlands]] (NL) and [[Belgium]] (B.)
* [[United Kingdom]] of Great Brittain (GB) and Northern Ireland
* [[United States]] of America (USA)

====Clusters====
There are various temporary and permanent clusters where bitcoin-friendly communities form. Temporary clusters are listed in [[Bitcoin Wiki:Community_portal#Events|events]]. Permanent communities include:

* [http://bitcointalk.org/index.php?topic=66832.0 Free State Project] New Hampshire
* [http://www.thebitcointrader.com/2012/05/bitcoins-hogwarts-san-francisco-tech.html 20 Mission] San Francisco, CA

== IRC ==

* See [[IRC_channels|IRC channels]]

==Wiki Users==

* [http://en.bitcoin.it/wiki/Special:ListUsers List of Users] registered on the Bitcoin wiki.

== Events ==
Periodic events where Bitcoin community meets include PorcFest, Chaos Computer Camp, Burning Man, Bitcoin conferences and more.

* [[Meetups]]
* [http://bitcointalk.org/index.php?topic=4526.0 Events, conferences and other events]

==Bitcoin Related Publications==

* [https://news.bitcoin.com/ Bitcoin News] articles and opinion pieces
* [http://twitter.com/TopNewsBitcoin/bitcoin TopNewsBitcoin/bitcoin] Twitter list
* See [[:Category:Blogs|Blogs]] category
* See [[:Category:Directories|Directories]] category
* See [[Press]]

==Education==

* [[:Category:Educational|Educational category]]

== Maps ==
* [http://coinmap.org/ CoinMap], collaborative map based on OpenStreetMap data and rendering
* [[Bitcoin.local]] Local exchanges
* [[Bitcoin Users Worldwide]] - Find nearby Bitcoin users • Engage in local trade • Add your own offers • Get notifications

== Monitoring ==
* [http://bitcoinchain.com/ BitcoinChain.com] provides Bitcoin Block Explorer, Exchange Markets, Mining Pools Data.
* [http://bitcoincharts.com/markets/ Bitcoin Charts] displays an overview of Bitcoin exchange markets.
* The [http://www.bitcoinmonitor.com/ Bitcoin Monitor] visualizes transactions, new blocks and trades on markets as they are happening.
* [http://www.bitcoinwatch.com/ Bitcoin Watch] has various statistics on things like the size of the economy or the number of transactions.
* [http://bitcoinx.io/ BitcoinX.io] monitors and displays Bitcoin exchanges and Bitcoin wallets with rankings and tools.

== Portfolio ==
* [http://my-btc.info CoinTracking.info (formerly my-btc.info)] A free profit/loss portfolio manager for Bitcoins and other digital currencies.
* [http://myBitWorth.com myBitWorth] - allows you to track your bitcoin holdings over multiple addresses and portfolios on the bitcoin securities exchanges.

== Bitcoin Project ==
* [http://www.bitcoin.org Bitcoin.org] Bitcoin.org project site
* [https://github.com/bitcoin GitHub] Bitcoin project site
* [[:Category:Developer|Developer]] pages

== Non-profit Organizations ==

* [[List_of_Bitcoin_non-profits_around_the_world|List of Bitcoin non-profits around the world]]

== External Communities ==
* [http://www.etsy.com/teams/10366/bitcoin Bitcoin team] on Etsy, an e-commerce website focused on handmade or vintage items.
* [http://steamcommunity.com/groups/bitcoin Bitcoin group on Steam] platform by Valve, a gaming platform.
* [http://www.rugatu.com/ Rugatu], a Q&A community.

Forums

2015-12-28T01:28:15Z

BitcoinX:

== General Bitcoin Discussion ==
* Reddit:
** [http://www.reddit.com/r/bitcoin /r/Bitcoin]
** [http://www.reddit.com/r/bitcoin_uncensored /r/Bitcoin_uncensored]
** [http://www.reddit.com/r/btc /r/BTC]
** [http://www.reddit.com/r/bitcoinxt /r/BitcoinXT]
* [https://forum.bitcoin.com Bitcoin.com Forum]
* [http://www.bitcointalk.org BitcoinTalk Forum]
* [http://bitco.in/forum/ Bitcoin Forum]
* [http://1bitcoins.org/forum 1 Bitcoins Forum]
* [http://www.bitcoinforum.ca Bitcoin Forum Canada]
* [http://www.bitcoinprofitgroup.com/ Bitcoin Profit Group Forum - Community For Making Profits With Bitcoin. Faucets, Trading, Investing, HYIP, Bitcoin Games, Bitcoin Casinos & More]
* [http://bitanswers.com BitAnswers Question and Answer Community]
*Google Plus:
** [https://plus.google.com/communities/115591368588047305300 Bitcoin Google+ Community]
** [https://plus.google.com/communities/116312962316485325190 Bitcoin Google+ Community]
** [https://plus.google.com/b/107581642674912229828/107581642674912229828/posts Google+ Page]
* [http://www.bitcointrading.com/forum/index.php Bitcoin Trading Forum]
* [http://coinboards.org CoinBoards]
* [https://coinchat.org CoinChat - bitcoin integrated chat network with free BTC, gambling games, custom rooms, SSL encryption]
* Facebook:
**[http://www.facebook.com/pages/Bitcoin/133067610063481 Facebook - Bitcoin]
** [http://www.facebook.com/bitcoin.p2p.digital.currency Facebook - Bitcoin]
** [http://www.facebook.com/btchkex Facebook - Bitcoin Hong Kong]
** [http://www.facebook.com/bitcoins Facebook - Bitcoin P2P Cryptocurrency]
** [https://www.facebook.com/IndiaBitcoin Facebook - Bitcoin India]
*Google Groups:
** [http://groups.google.com/group/bitcoin-discussion Google groups - bitcoin-discussion]
** [http://groups.google.com/group/bitcoinpeople Google groups - Bitcoin People]
* [https://hubski.com/tag?id=bitcoin Hubski - Bitcoin discussion]
* [https://axablends.com/merchants-accepting-bitcoin/ Merchants Accepting Bitcoin Forum]
* [http://bitcoincenterkorea.org Bitcoin Center Korea]
* [http://seoulbitcoin.org Seoul Bitcoin]
* [http://steamcommunity.com/groups/bitcoin Steam - Bitcoin]
* [http://www.talkgold.com/forum/f513-.html Talkgold - Bitcoin Forum]

== Regular shows and podcasts ==
* [http://letstalkbitcoin.com Let's talk bitcoin - Adam B. Levine's podcast]
** [http://www.reddit.com/r/letstalkbitcoin/ Let's talk bitcoin subreddit]
* [http://www.jupiterbroadcasting.com/show/planb Plan B - Juniper Broadcasting weekly bitcoin show]
** [http://www.youtube.com/user/jupiterbroadcasting/ Juniper Broadcasting youtube channel]
** [http://www.reddit.com/r/planbshow/ Plan B show subreddit]
* [http://www.thebitcoinchannel.com Bitcoin Channel - Bitcoin report and other videos/webcasts]
** [https://www.youtube.com/user/BitcoinChannel Bitcoin Channel on youtube]

== Language/Region Specific ==

* [http://www.bitcoins.co.ke Nairobi, Kenya and Africa Bitcoin community forum]
* [https://www.coinforum.ca Canada's Bitcoin forum]
* [http://www.bitcointalk.biz Farsi / Persian community]
* [https://www.bitcoin-italia.org Italian Bitcoin community forum]
* [http://www.facebook.com/pages/Bitcoin-New-Zealand/189769464405632 New Zealand Facebook community]
* [http://bitcoin.pl/forum/ Polish Bitcoin community forum]
* [https://forum.btcsec.com/ BTCsec.com Bitcoin community forum (Russian)]
* [http://bitcoincenterkorea.org Bitcoin Center Korea]
* [http://seoulbitcoin.org Seoul Bitcoin]
* [http://bitcoin.rs Serbian Bitcoin community forum]
* [http://www.bitcoin.si/ Slovenian bitcoin community]
* [http://www.bitcoin-tr.com/ Turkish Bitcoin community]
* [http://forum.bitcoinpenge.dk/ Danish Bitcoin community]

== Other ==

* [http://bitcoin.stackexchange.com Bitcoin StackExchange] - Q&A site, currently in public beta
* [http://sourceforge.net/mailarchive/forum.php?forum_name=bitcoin-development Developer mailing list]

==See Also==

* [[Bitcoin_Wiki:Community_portal]]

[[pl:Fora dyskusyjne]]

Currency exchange

2015-09-03T14:33:05Z

BitcoinX:

Bitcoin currency exchanges work in a manner similar to banks. One first deposits amounts of money in the currencies supported by the exchange, to his own account in the exchange, uses these balances to trade with other users of the exchange and then withdraws that money. Unlike over-the-counter transactions, there is no risk of losing money due to people not fulfilling their part of the deal, as long as the exchange itself does not commit fraud or withhold money.

Exchanging is done by placing "buy" or "sell" orders, which the exchange system software then matches with each other. "Buy" orders (or "bids") are offers to buy bitcoins in exchange for another currency at a maximum price-per-bitcoin which is set by the offerer. "Sell" orders (or "asks") are offers to sell bitcoins at a minimum price-per-bitcoin. If the bid price of a buy order is higher than the ask price of a sell order, an exchange can be performed and either the bid order, the sell order or both can be removed from the "order book". Thus, at any given time, there is a price above which there are no more buy orders and a slightly higher price below which there are no more sell orders.

Communication with the Bitcoin currency exchanges is commonly done using a standard web browser, over a secure SSL connection.

The payment methods that are most commonly accepted and used by Bitcoin currency exchanges are:

* Bitcoin transfers
* Liberty Reserve
* Bank wires
* Credit cards

Currencies that can be exchanged with Bitcoins in an automated way include:

* US Dollars
* Euros
* Japanese Yen
* Russian Rubles
* Pound Sterling
* Pecunix Gold

=="Soft currencies" and chargebacks==

Exchanging bitcoins for other forms of currency brings up some issues regarding chargeback fraud. Specifically, payment methods such as credit cards, and PayPal, can be reversed up to 90 days after the transaction took place. In contrast, bitcoin is a "hard currency", once you spend bitcoins, you cannot get them back by 'pulling' from your side. Thus, when you trade bitcoin for a 'soft' currency like paypal or credit card, you open yourself up to the risk of chargeback after you send bitcoin. The buyer may initiate a chargeback by claiming non-receipt of goods, or if a stolen account was used, the real account owner will initiate the process once he notices a charge he didn't make. As a result, it is strongly recommended to not trade 'soft' currency for 'hard' currency with people you do not know or trust.

In January, 2010, an open source currency exchange platform was released by the founder of [[Bitcoin Central]].

The two major exchanges at the time, [[Bitcoin Market]] and [[MtGox]], were hit with a wave of PayPal scams in October 2010, where one or a group of individuals used stolen PayPal accounts to fund their exchange accounts to buy bitcoins. This has caused the freezing of the Mtgox paypal account, and a suspension of new user registration on [[Bitcoin Market]]. These account freezes caused a temporary liquidity problem for the bitcoin economy, as it became more difficult to exchange dollars for bitcoins.

==Exchange Rates and Market Forces==

Early in the life of Bitcoin, the currency showed some major fluctuations in exchange value, ranging from under $50 to $266 US. The exchange rate of Bitcoin has shown relatively stable growth since the beginning of 2013. The current exchange rate for bitcoins is at $959.58 US. The all time high for the value of a single bitcoin was on November 17th, 2013 when it reached $1216.73 US on the Mt. Gox exchange.

Bitcoin has been criticized by economists for bubbling up around itself, similar to the housing market in the US before the crash and it is true that Bitcoin has shown a tendency for rapid rises and crashes in price. However, given the instability of the global economy, Bitcoin has proven to be a reliable investment compared to many other popular currencies. In particular the European debt crisis gave rise to a large amount of currency being converted to bitcoin to keep it safe from the falling value of the Euro. These investments in turn drove up the value of the bitcoin thanks to its unique production method.

Despite the growing popularity of bitcoin transactions and the generally rising price, several events have shown an inability to withstand major blows to its reputation. The FBI seizure of around 26,000 bitcoins from the drug distribution website Silk Road more than halved the value of individual bitcoins. Technical errors have also proven to be a difficulty for speculators on the exchange value of the BTC. In April of 2013, a backlog of transactions shut down the Mt. Gox website, causing a drop in value from $266 to $77 US.

While it has become easier to buy and sell bitcoins with the influx of bitcoin exchanges <ref>[https://bitcoinx.io Bitcoin Exchanges]</ref> across the world over the past couple of years, the availability of access to the currency has been one of the greatest sources of variability in its exchange rate. Because of looming government regulations, most notably the U.S., it has been a challenge to convert your local currency into Bitcoin, which has led to highly variable prices based on geography, which, for a currency which is designed to be borderless, has proven to be an issue, given that so many bitcoin users treat their bitcoins more like an asset than a currency. That is to say, they intend to hold onto their BTC until they decide to convert back into their local currency, rather than spend it online for anonymous transactions.

==See also==

* [[:Category:Exchanges|Exchanges]]
* [[Buying bitcoins]]
* [[Selling bitcoins]]
* [[Secure Trading]]

==References==
<references/>

[[Category:Exchanges]]

Currency exchange

2015-09-03T14:31:53Z

BitcoinX: Typos, grammar, updates

Help:FAQ

2015-04-17T18:49:47Z

BitcoinX:

Here you will find answers to the most commonly asked questions.

== General ==
=== What is Bitcoin? ===
Bitcoin is a distributed peer-to-peer digital currency that can be transferred instantly and securely between any two people in the world. It's like electronic cash that you can use to pay friends or merchants.

=== What are bitcoins? ===
Bitcoins are the unit of currency of the Bitcoin system. A commonly used shorthand for this is “BTC” to refer to a price or amount (e.g. “100 BTC”).
There are such things as [[physical bitcoins]], but ultimately, a bitcoin is just a number associated with a [[Address|Bitcoin Address]]. A physical bitcoin is simply an object, such as a coin, with the number carefully embedded inside. See also an [[Introduction|easy intro]] to Bitcoin.

=== How can I get bitcoins? ===

There are a variety of ways to acquire bitcoins:
* You can buy bitcoins from [http://coinbase.com/ Coinbase], [[File:BIPS.gif|20px|link=https://bipsmarket.com]] [https://bipsmarket.com BIPS Market] or [http://gocelery.com/ Celery] .
* Accept bitcoins as payment for goods or services.
* The most common way to buy bitcoins are the [[Buying bitcoins|Bitcoin Exchanges]]
* Visit [http://bitcoinx.io bitcoinx.io] for peer-to-peer ratings and reviews of bitcoin exchanges to see where to buy bitcoins
* There are several services where you can [[Buying_Bitcoins_(the_noob_version)|trade them]] for traditional currency.
* Find someone to trade cash for bitcoins in-person through a [https://en.bitcoin.it/wiki/Category:Directories local directory].
* Participate in a [[Pooled mining|mining pool]].
* If you have a lot of mining hardware, you can solo mine and attempt to create a new [[block]] (currently yields 25 bitcoins plus transaction fees).
* Visit sites that provide [[Trade#Free_Samples_and_Offers|free samples and offers]].
* Visit [http://wheretobuycryptocoins.com WhereToBuyCryptoCoins.com] to get a guide how to start with bitcoins and cryptocurrency in general. Shows a list of markets, faucets, exchanges, miner's pools and more.

===Does Bitcoin guarantee an influx of free money?===

Since Bitcoin is a new technology, what it is and how it works may be initially unclear. Bitcoin is sometimes presented as being one of three things:
<ol style="list-style-type: upper-alpha;">
<li>Some sort of online 'get-rich-quick' scam.</li>
<li>A loophole in the market economy, the installation of which guarantees a steady influx of cash.</li>
<li>A sure investment that will almost certainly yield a profit.</li>
</ol>
In fact, none of the above are true. Let's look at them independently.

;Is Bitcoin a 'get-rich-quick' scheme?
:If you've spent much time on the Internet, you've probably seen ads for many 'get-rich-quick' schemes. These ads usually promise huge profits for a small amounts of easy work. Such schemes are usually pyramid/matrix-style schemes that make money from their own employees and offer nothing of any real value. Most convince one to buy packages that will make them earn hundreds a day, which in fact have the buyer distribute more such ads, and make minute profits.

:Bitcoin is in no way similar to these schemes. Bitcoin doesn't promise windfall profits. There is no way for the developers to make money from your involvement or to take money from you. That bitcoins are nearly impossible to acquire without the owner's consent represents one of its greatest strengths. Bitcoin is an experimental, virtual currency that may succeed or may fail. None of its developers expect to get rich off of it.

:A more detailed answer to this question can be found [http://bitcointalk.org/?topic=7815.0 here].

;Will I make money by installing the client?
:Most people who use Bitcoin don't earn anything by doing so, and the default client has no built-in way to earn Bitcoins. A small minority of people with dedicated, high-performance hardware do earn some Bitcoins by "''mining''" (generating new bitcoins, see [[#What is mining?|What is mining?]]) with special software, but joining Bitcoin shouldn't be construed as being the road to riches. Most Bitcoin users get involved because they find the project conceptually interesting and don't earn anything by doing so. This is also why you won't find much speculation about the political or economic repercussions of Bitcoin anywhere on this site: Bitcoin developers owe their dedication to the project's intellectual yieldings more than to those of a monetary nature. Bitcoin is still taking its first baby steps; it may go on to do great things but right now it only has something to offer those chasing conceptually interesting projects or bleeding edge technology.

;As an investment, is Bitcoin a sure thing?
:Bitcoin is a new and interesting electronic currency, the value of which is not backed by any single government or organization. Like other currencies, it is worth something partly because people are willing to trade it for goods and services. Its exchange rate fluctuates continuously, and sometimes wildly. It lacks wide acceptance and is vulnerable to manipulation by parties with modest funding. Security incidents such as website and account compromise may trigger major sell-offs. Other fluctuations can build into positive feedback loops and cause much larger exchange rate fluctuations. Anyone who puts money into Bitcoin should understand the risk they are taking and consider it a high-risk currency. Later, as Bitcoin becomes better known and more widely accepted, it may stabilize, but for the time being it is unpredictable. Any investment in Bitcoin should be done carefully and with a clear plan to manage the risk.

=== Can I buy bitcoins with Paypal? ===

It is possible to buy [[physical bitcoins]] with PayPal but it is otherwise difficult and/or expensive to do so for non-physical bitcoins, because of significant risk to the seller.

While it is possible to find an individual who wishes to sell Bitcoin to you via Paypal, (perhaps via [http://www.bitcoin-otc.com/ #bitcoin-otc] ) most exchanges do not allow funding through PayPal. This is due to repeated cases where someone pays for bitcoins with Paypal, receives their bitcoins, and then fraudulently complains to Paypal that they never received their purchase. PayPal often sides with the fraudulent buyer in this case, which means any seller needs to cover that risk with higher fees or refuse to accept PayPal altogether.

Buying Bitcoins from individuals this way is still possible, but requires the seller to have some trust that the buyer will not file a claim with PayPal to reverse the payment.

=== Where can I find a forum to discuss Bitcoin? ===

Please visit the [[Bitcoin:Community_portal#Bitcoin_Community_Forums_on_various_platforms|Community Portal]] for links to Bitcoin-related forums.

=== How are new bitcoins created? ===

New bitcoins are generated by the network through the process of "[[#What is mining?|''mining'']]". In a process that is similar to a continuous raffle draw, mining nodes on the network are awarded bitcoins each time they find the solution to a certain mathematical problem (and thereby create a new [[block]]). Creating a block is a [[proof of work]] with a difficulty that varies with the overall strength of the network. The reward for solving a block is [[Controlled Currency Supply|automatically adjusted]] so that, ideally, every four years of operation of the Bitcoin network, half the amount of bitcoins created in the prior 4 years are created. A maximum of {{formatnum:10499889.80231183}} bitcoins were created in the first 4 (approx.) years from January 2009 to November 2012. Every four years thereafter this amount halves, so it should be {{formatnum:5250000}} over years 4-8, {{formatnum:2625000}} over years 8-12, and so on. Thus the total number of bitcoins in existence can never exceed {{formatnum:20999839.77085749}} and counting. See [[Controlled Currency Supply]].

Blocks are [[Mining|mined]] every 10 minutes, on average and for the first four years ({{formatnum:210000}} blocks) each block included 50 new bitcoins. As the amount of processing power directed at mining changes, the difficulty of creating new bitcoins changes. This difficulty factor is calculated every 2016 blocks and is based upon the time taken to generate the previous 2016 blocks. See [[Mining]].

=== What's the current total number of bitcoins in existence? ===

[http://blockexplorer.com/q/totalbc Current count]. Also see [https://blockchain.info/charts/total-bitcoins Total bitcoins in circulation chart]

The number of blocks times the coin value of a block is the number of coins in existence. The coin value of a block is 50 BTC for each of the first {{formatnum:210000}} blocks, 25 BTC for the next {{formatnum:210000}} blocks, then 12.5 BTC, 6.25 BTC and so on.

=== How divisible are bitcoins? ===

A bitcoin can be divided down to 8 decimal places. Therefore, 0.00000001 BTC is the smallest amount that can be handled in a transaction. If necessary, the protocol and related software can be modified to handle even smaller amounts.

=== What do I call the various denominations of bitcoin? ===

Unlike most currencies, Bitcoin amounts are highly divisible. This has led to a desire to create names for smaller denominations of bitcoin amounts, especially since transactions involving whole bitcoins are no longer quite so common. Bitcoin is decentralized, so there is no organization that can set official names for units. Therefore, there are many different units with varying degrees of popularity. As of 2014, the most common units are bitcoins, bits, and satoshi: 1 bitcoin = 1 000 000.00 bits = 100 000 000 satoshi.

The '''bitcoin''' (abbreviated '''BTC''' or '''XBT''') is the unit that was used in the original Bitcoin wallet software created by [[Satoshi Nakamoto]]. There is nothing particularly special about this unit, but it is by far the most common unit due to tradition.

The smallest value that the Bitcoin network supports sending is the '''[[satoshi (unit)|satoshi]]''' (sometimes abbreviated '''sat'''), one hundred-millionth (0.000 000 01) of a bitcoin. In other words, the network does not support sending fractions of a satoshi. Since it is a hard limit, it seems natural to use it as a unit, though it currently has very little value. The unit was named in honor of Bitcoin's creator after he left -- he was not so vain as to name a unit after himself. The plural of satoshi is satoshi: "Send me 100 satoshi".

Another common unit is the '''[[bit (unit)|bit]]''', one millionth (0.000 001) of a bitcoin. This unit is the same as a microbitcoin (μBTC). Bits are seen by some as especially logical because they have two-decimal precision like most fiat currencies. You can send 1.23 bits, but not 1.234 bits due to the network's limited precision.

It is also fairly common to use SI prefixes:

* 0.01 BTC = 1 cBTC = 1 centibitcoin (also referred to as bitcent)
* 0.001 BTC = 1 mBTC = 1 millibitcoin (also referred to as mbit (pronounced em-bit) or millibit or even bitmill)
* 0.000 001 BTC = 1 μBTC = 1 microbitcoin (also referred to as ubit (pronounced yu-bit) or microbit)

For an overview of all proposed units of Bitcoin (including less common and niche units), see [[Units]].

Further discussion on this topic can be found on the forums here:

* [https://bitcointalk.org/index.php?topic=14438.msg195287#msg195287 We need names]
* [https://bitcointalk.org/index.php?topic=8282.0 What to call 0.001 BTC]

=== How does the halving work when the number gets really small? ===

Eventually the reward will go from 0.00000001 BTC to zero and no more bitcoins will be created.

The block reward calculation is done as a right bitwise shift of a 64-bit signed integer, which means it is divided by two and rounded down. The integer is equal to the value in BTC * 100,000,000 since internally in the reference client software, all Bitcoin balances and values are stored as unsigned integers.

With an initial block reward of 50 BTC, it will take many 4-year periods for the block reward to reach zero.

=== How long will it take to generate all the coins? ===

The last block that will generate coins will be block #6,929,999 which should be generated at or near the year 2140. The total number of coins in circulation will then remain static at 20,999,999.9769 BTC.

Even if the allowed precision is expanded from the current 8 decimals, the total BTC in circulation will always be slightly below 21 million (assuming everything else stays the same). For example, with 16 decimals of precision, the end total would be 20,999,999.999999999496 BTC.

=== If no more coins are going to be generated, will more blocks be created? ===

Absolutely! Even before the creation of coins ends, the use of [[transaction fee|transaction fees]] will likely make creating new blocks more valuable from the fees than the new coins being created. When coin generation ends, these fees will sustain the ability to use bitcoins and the Bitcoin network. There is no practical limit on the number of blocks that will be mined in the future.

=== But if no more coins are generated, what happens when Bitcoins are lost? Won't that be a problem? ===

Because of the law of supply and demand, when fewer bitcoins are available the ones that are left will be in higher demand, and therefore will have a higher value. So, as Bitcoins are lost, the remaining bitcoins will eventually increase in value to compensate. As the value of a bitcoin increases, the number of bitcoins required to purchase an item '''de'''creases. This is a [[Deflationary spiral|deflationary economic model]]. As the average transaction size reduces, transactions will probably be denominated in sub-units of a bitcoin such as millibitcoins ("Millies") or microbitcoins ("Mikes").

The Bitcoin protocol uses a base unit of one hundred-millionth of a Bitcoin ("a Satoshi"), but unused bits are available in the protocol fields that could be used to denote even smaller subdivisions.

=== If every transaction is broadcast via the network, does Bitcoin scale? ===
The Bitcoin protocol allows lightweight clients that can use Bitcoin without downloading the entire transaction history. As traffic grows and this becomes more critical, implementations of the concept will be developed. Full network nodes will at some point become a more specialized service.

With some modifications to the software, full Bitcoin nodes could easily keep up with both VISA and MasterCard combined, using only fairly modest hardware (a single high end server by todays standards). It is worth noting that the MasterCard network is structured somewhat like Bitcoin itself - as a peer to peer broadcast network.

Learn more about [[Scalability]].

==Economy==
=== Where does the value of Bitcoin stem from? What backs up Bitcoin? ===
Bitcoins have value because they are useful and because they are [[Controlled Currency Supply|scarce]]. As they are accepted by more merchants, their value will [http://en.wikipedia.org/wiki/Sticky_%28economics%29 stabilize]. See the [[Trade|list of Bitcoin-accepting sites]].

When we say that a currency is backed up by gold, we mean that there's a promise in place that you can exchange the currency for gold. Bitcoins, like dollars and euros, are not backed up by anything except the variety of merchants that accept them.

It's a common misconception that Bitcoins gain their value from the cost of electricity required to generate them. Cost doesn't equal value – hiring 1,000 men to shovel a big hole in the ground may be costly, but not valuable. Also, even though scarcity is a critical requirement for a useful currency, it alone doesn't make anything valuable. For example, your fingerprints are scarce, but that doesn't mean they have any exchange value.

Alternatively it needs to be added that while the law of supply and demand applies it does not guarantee value of Bitcoins in the future. If confidence in Bitcoins is lost then it will not matter that the supply can no longer be increased, the demand will fall off with all holders trying to get rid of their coins. An example of this can be seen in cases of state currencies, in cases when the state in question dissolves and so no new supply of the currency is available (the central authority managing the supply is gone), however the demand for the currency falls sharply because confidence in its purchasing power disappears. Of-course Bitcoins do not have such central authority managing the supply of the coins, but it does not prevent confidence from eroding due to other situations that are not necessarily predictable.

=== Is Bitcoin a bubble? ===
Yes, in the same way as the euro and dollar are. They only have value in exchange and have no inherent value. If everyone suddenly stopped accepting your dollars, euros or bitcoins, the "bubble" would burst and their value would drop to zero. But that is unlikely to happen: even in Somalia, where the government collapsed 20 years ago, [http://en.wikipedia.org/wiki/Somali_shilling Somali shillings] are still accepted as payment.

=== Is Bitcoin a Ponzi scheme? ===
In a Ponzi Scheme, the founders persuade investors that they’ll profit. Bitcoin does not make such a guarantee. There is no central entity, just individuals building an economy.

A ponzi scheme is a zero sum game. Early adopters can only profit at the expense of late adopters. Bitcoin has possible win-win outcomes. Early adopters profit from the rise in value. Late adopters, and indeed, society as a whole, benefit from the usefulness of a stable, fast, inexpensive, and widely accepted p2p currency.

The fact that early adopters benefit more doesn't alone make anything a Ponzi scheme. All good investments in successful companies have this quality.

=== Doesn't Bitcoin unfairly benefit early adopters? ===
Early adopters in Bitcoin are taking a risk and invested resources in an unproven technology. By so doing, they help Bitcoin become what it is now and what it will be in the future (hopefully, a ubiquitous decentralized digital currency). It is only fair they will reap the benefits of their successful investment.

In any case, any bitcoin generated will probably change hands dozens of time as a medium of exchange, so the profit made from the initial distribution will be insignificant compared to the total commerce enabled by Bitcoin. Many of the earliest users of Bitcoin have traded their coins at valuations below $1 US, or other amounts which are small compared to contemporary prices.

===Won't loss of wallets and the finite amount of Bitcoins create excessive deflation, destroying Bitcoin? ===
Worries about Bitcoin being destroyed by deflation are not entirely unfounded. Unlike most currencies, which experience inflation as their founding institutions create more and more units, Bitcoin will likely experience gradual deflation with the passage of time. Bitcoin is unique in that only a small amount of units will ever be produced (twenty-one million to be exact), this number has been known since the project's inception, and the units are created at a predictable rate.

Also, Bitcoin users are faced with a danger that doesn't threaten users of any other currency: if a Bitcoin user loses his wallet, his money is gone forever, unless he finds it again. And not just to him; it's gone completely out of circulation, rendered utterly inaccessible to anyone. As people will lose their wallets, the total number of Bitcoins will slowly decrease.

Therefore, Bitcoin seems to be faced with a unique problem. Whereas most currencies inflate over time, Bitcoin will mostly likely do just the opposite. Time will see the irretrievable loss of an ever-increasing number of Bitcoins. An already small number will be permanently whittled down further and further. And as there become fewer and fewer Bitcoins, the laws of supply and demand suggest that their value will probably continually rise.

Thus Bitcoin is bound to once again stray into mysterious territory, because no one exactly knows what happens to a currency that grows continually more valuable. Many economists claim that a low level of inflation is a good thing for a currency, but nobody is quite sure about what might happens to one that continually deflates. Although deflation could hardly be called a rare phenomenon, steady, constant deflation is unheard of. There may be a lot of speculation, but no one has any hard data to back up their claims.

That being said, there is a mechanism in place to combat the obvious consequences. Extreme deflation would render most currencies highly impractical: if a single Canadian dollar could suddenly buy the holder a car, how would one go about buying bread or candy? Even pennies would fetch more than a person could carry. Bitcoin, however, offers a simple and stylish solution: infinite divisibility. Bitcoins can be divided up and trade into as small of pieces as one wants, so no matter how valuable Bitcoins become, one can trade them in practical quantities.

In fact, infinite divisibility should allow Bitcoins to function in cases of extreme wallet loss. Even if, in the far future, so many people have lost their wallets that only a single Bitcoin, or a fraction of one, remains, Bitcoin should continue to function just fine. No one can claim to be sure what is going to happen, but deflation may prove to present a smaller threat than many expect.

For more information, see the [[Deflationary spiral]] page.

=== What if someone bought up all the existing Bitcoins? ===
Bitcoin markets are competitive -- meaning the price of a bitcoin will rise or fall depending on supply and demand at certain price levels. Only a fraction of bitcoins issued to date are found on the exchange markets for sale. So even though technically, a buyer with lots of money could buy all the bitcoins offered for sale, unless those holding the rest of the bitcoins offer them for sale as well, even the wealthiest, most determined buyer can't get at them.

Additionally, new currency continues to be issued daily and will continue to do so for decades; though over time the rate at which they are issued declines to insignificant levels. Those who are mining aren't obligated to sell their bitcoins so not all bitcoins will make it to the markets even.

This situation doesn't suggest, however, that the markets aren't vulnerable to price manipulation. It doesn't take significant amounts of money to move the market price up or down, and thus Bitcoin remains a volatile asset.

===What if someone creates a new block chain, or a new digital currency that renders Bitcoin obsolete?===

That the block chain cannot be easily forked represents one of the central security mechanisms of Bitcoin. Given the choice between two block chains, a Bitcoin miner always chooses the longer one - that is to say, the one with the more complex hash. Thusly, it ensures that each user can only spend their bitcoins once, and that no user gets ripped off.

As a consequence of the block chain structure, there may at any time be many different sub-branches, and the possibility always exists of a transaction being over-written by the longest branch, if it has been recorded in a shorter one. The older a transaction is though, the lower its chances of being over-written, and the higher of becoming permanent. Although the block chain prevents one from spending more Bitcoins than one has, it means that transactions can be accidentally nullified.

A new block chain would leave the network vulnerable to [[double-spending|double-spend]] attacks. However, the creation of a viable new chain presents considerable difficulty, and the possibility does not present much of a risk.

Bitcoin will always choose the longer Block Chain and determines the relative length of two branches by the complexities of their hashes. Since the hash of each new block is made from that of the block preceding it, to create a block with a more complex hash, one must be prepared to do more computation than has been done by the entire Bitcoin network from the fork point up to the newest of the blocks one is trying to supersede. Needless to say, such an undertaking would require a very large amount of processing power and since Bitcoin is continually growing and expanding, it will likely only require more with the passage of time.

A much more distinct and real threat to the Bitcoin use is the development of other, superior virtual currencies, which could supplant Bitcoin and render it obsolete and valueless.

A great deal of careful thought and ingenuity has gone into the development of Bitcoin, but it is the first of its breed, a prototype, and vulnerable to more highly-evolved competitors. At present, any threatening rivals have yet to rear their heads; Bitcoin remains the first and foremost private virtual currency, but we can offer no guarantees that it will retain that position. It would certainly be in keeping with internet history for a similar system built from the same principles to supersede and cast Bitcoin into obsolescence, after time had revealed its major shortcomings. Friendster and Myspace suffered similar fates at the hand of Facebook, Napster was ousted by Limeware, Bearshare and torrent applications, and Skype has all but crushed the last few disciples of the Microsoft Messenger army.

This may sound rather foreboding, so bear in mind that the introduction of new and possibly better virtual currencies will not necessarily herald Bitcoin's demise. If Bitcoin establishes itself sufficiently firmly before the inception of the next generation of private, online currencies so as to gain widespread acceptance and general stability, future currencies may pose little threat even if they can claim superior design. This is known as the network effect.

=== Is Bitcoin open to value manipulation? ===

The current low market cap of Bitcoin means that any investor with deep enough pockets can significantly change/manipulate the rate. Is this a problem?

This is only a problem if you are investing in Bitcoin for short period of time. A manipulator can't change the fundamentals, and over a period of 5-10 years, the fundamentals will win over any short term manipulations.

==Sending and Receiving Payments==

=== Why do I have to wait 10 minutes before I can spend money I received? ===

10 minutes is the average time taken to find a block. It can be significantly more or less time than that depending on luck; 10 minutes is simply the average case.

[[Blocks]] (shown as "confirmations" in the GUI) are how the Bitcoin achieves consensus on who owns what. Once a block is found everyone agrees that you now own those coins, so you can spend them again. Until then it's possible that some network nodes believe otherwise, if somebody is attempting to defraud the system by reversing a transaction. The more confirmations a transaction has, the less risk there is of a reversal. Only 6 blocks or 1 hour is enough to make reversal computationally impractical. This is dramatically better than credit cards which can see chargebacks occur up to three months after the original transaction!

Ten minutes was specifically chosen by [[Satoshi]] as a tradeoff between first confirmation time and the amount of work wasted due to chain splits. After a block is mined, it takes time for other miners to find out about it, and until then they are actually competing against the new block instead of adding to it. If someone mines another new block based on the old block chain, the network can only accept one of the two, and all the work that went into the other block gets wasted. For example, if it takes miners 1 minute on average to learn about new blocks, and new blocks come every 10 minutes, then the overall network is wasting about 10% of its work. Lengthening the time between blocks reduces this waste.

As a thought experiment, what if the Bitcoin network grew to include Mars? From the farthest points in their orbits, it takes about 20 minutes for a signal to travel from Earth to Mars. With only 10 minutes between new blocks, miners on Mars would always be 2 blocks behind the miners on Earth. It would be almost impossible for them to contribute to the block chain. If we wanted collaborate with those kinds of delays, we would need at least a few hours between new blocks.

[[File:TransactionConfirmationTimesExample.PNG]]

=== Do you have to wait until my transactions are confirmed in order to buy or sell things with Bitcoin? ===

YES, you do, IF the transaction is non-recourse. The Bitcoin reference software does not display transactions as confirmed until six blocks have passed (confirmations). As transactions are buried in the chain they become increasingly non-reversible but are very reversible before the first confirmation. Two to six confirmations are recommended for non-recourse situations depending on the value of the transactions involved.

When people ask this question they are usually thinking about applications like supermarkets. This generally is a recourse situation: if somebody tries to double-spend on a face-to-face transaction it might work a few times, but probabalistically speaking eventually one of the double-spends will get noticed, and the penalty for shoplifting charges in most localities is calibrated to be several times worse than the proceeds of a single shoplifting event.

Double-spends might be a concern for something like a snack machine in a low-traffic area with no nearby security cameras. Such a machine shouldn't honor zero-confirmation payments, and should instead use some other mechanism of clearing Bitcoin or validating transactions against reversal, see the wiki article [[Myths#Point_of_sale_with_bitcoins_isn.27t_possible_because_of_the_10_minute_wait_for_confirmation|here]] for alternatives.

Applications that require immediate payment processing, like supermarkets or snack machines, need to manage the risks. Here is one way to reverse an unconfirmed payment:

A [[Double-spending#Finney_attack|Finney attack]] is where an attacker mines a block containing a movement of some coins back to themselves. Once they find a block solution, they quickly go to a merchant and make a purchase, then broadcast the block, thus taking back the coins. This attack is a risk primarily for goods that are dispatched immediately, like song downloads or currency trades. Because the attacker can't choose the time of the attack, it isn't a risk for merchants such as supermarkets where you can't choose exactly when to pay (due to queues, etc). The attack can fail if somebody else finds a block containing the purchasing transaction before you release your own block, therefore, merchants can reduce but not eliminate the risk by making purchasers wait some length of time that's less than a confirm.

Because pulling off this attack is not trivial, merchants who need to sell things automatically and instantly are most likely to adjust the price to include the cost of reversal fraud, or elect to use special insurance.

=== I was sent some bitcoins and they haven't arrived yet! Where are they? ===

Don't panic! There are a number of reasons why your bitcoins might not show up yet, and a number of ways to diagnose them.

The latest version of the Bitcoin-Qt client tells you how far it has yet to go in downloading the blockchain. Hover over the icon in the bottom right corner of the client to learn your client's status.

If it has not caught up then it's possible that your transaction hasn't been included in a block yet.

You can check pending transactions in the network by going [https://www.biteasy.com here] or [http://blockchain.info here] and then searching for your address. If the transaction is listed here then it's a matter of waiting until it gets included in a block before it will show in your client.

If the transaction is based on a coin that was in a recent transaction then it could be considered a low priority transaction. Transfers can take longer if the transaction fee paid was not high enough. If there is no fee at all the transfer can get a very low priority and take hours or even days to be included in a block.

=== Why does my Bitcoin address keep changing? ===
{{seealso|Address reuse}}
Unlike postal and email addresses, Bitcoin addresses are designed to be used exactly once only, for a single transaction.
Originally, wallets would display only a single address at a time, and change it when a transaction was received, but an increasing number of wallet implementations now generate an address when you explicitly want to receive a payment.

While it is technically possible to use an address for an arbitrary number of payments, this works by accident and harms both yourself ''and other unrelated third parties'', so it is considered a bad practice.
The most important concerns with such misuse involve loss of privacy and security:
both can be put into jeopardy when addresses are used for more than a single transaction only.

===How much will the transaction fee be?===

Some transactions might require a [[transaction fee]] for them to get confirmed in a timely manner. The transaction fee is processed by and received by the bitcoin miner. The most recent version of the Bitcoin client will estimate an appropriate fee when a fee might be required.

The fee is added to the payment amount. For example, if you are sending a 1.234 BTC payment and the client requires a 0.0005 BTC fee, then 1.2345 BTC will be subtracted from the wallet balance for the entire transaction and the address for where the payment was sent will receive a payment of 1.234 BTC.

A fee might be imposed because your transaction looks like a denial of service attack to the Bitcoin system. For example, it might be burdensome to transmit or it might recycle Bitcoins you recently received. The wallet software attempts to avoid generating burdensome transactions, but it isn't always able to do so: The funds in your wallet might be new or composed of many tiny payments.

Because the fee is related to the amount of data that makes up the transaction and not to the amount of Bitcoins being sent, the fee may seem extremely low (0.0005 BTC for a 1,000 BTC transfer) or unfairly high (0.004 BTC for a 0.02 BTC payment, or about 20%). If you are receiving tiny amounts (''e.g.'' as small payments from a mining pool) then fees when sending will be higher than if your activity follows the pattern of conventional consumer or business transactions.

As of Bitcoin 0.5.3 the required fee will not be higher than 0.05 BTC. For most users there is usually no required fee at all. If a fee is required it will most commonly be 0.0005 BTC.

=== What happens when someone sends me a bitcoin but my computer is powered off? ===

Bitcoins are not actually "sent" to your wallet; the software only uses that term so that we can use the currency without having to learn new concepts. Your wallet is only needed when you wish to spend coins that you've received.

If you are sent coins when your wallet client program is not running, and you later launch the wallet client program, the coins will eventually appear as if they were just received in the wallet. That is to say, when the client program is started it must download blocks and catch up with any transactions it did not already know about.

=== How long does "synchronizing" take when the Bitcoin client is first installed? What's it doing? ===

The popular Bitcoin client software from bitcoin.org implements a "full" Bitcoin node: It can carry out all the duties of the Bitcoin P2P system, it isn't simply a "client". One of the principles behind the operation of full Bitcoin nodes is that they don't assume that the other participants have followed the rules of the Bitcoin system. During synchronization, the software is processing historical Bitcoin transactions and making sure for itself that all of the rules of the system have been correctly followed.

In normal operation, after synchronizing, the software should use a hardly noticeable amount of your computer's resources.

When the wallet client program is first installed, its initial validation requires a lot of work from your computer's hard disk, so the amount of time to synchronize depends on your disk speed and, to a lesser extent, your CPU speed. It can take anywhere from a few hours to a day or so. On a slow computer it could take more than 40 hours of continuous synchronization, so check your computer's power-saving settings to ensure that it does not turn its hard disk off when unattended for a few hours. You can use the Bitcoin software during synchronization, but you may not see recent payments to you until the client program has caught up to the point where those transactions happened.

If you feel that this process takes too long, you can download a pre-synchronized blockchain from [http://eu2.bitcoincharts.com/blockchain/ http://eu2.bitcoincharts.com/blockchain/]. Alternatively, you can try an alternative "lite" client such as Multibit or a super-light client like electrum, though these clients have somewhat weaker security, are less mature, and don't contribute to the health of the P2P network.

==Networking==
=== Do I need to configure my firewall to run Bitcoin? ===

Bitcoin will connect to other nodes, usually on TCP port 8333. You will need to allow outgoing TCP connections to port 8333 if you want to allow your Bitcoin client to connect to many nodes. [[Testnet]] uses TCP port 18333 instead of 8333.

If you want to restrict your firewall rules to a few IPs, you can find stable nodes in the [[Fallback Nodes|fallback nodes list]].

=== How does the peer finding mechanism work? ===

Bitcoin finds peers primarily by forwarding peer announcements within its own network and each node saves a database of peers that it's aware of, for future use. In order to bootstrap this process Bitcoin needs a list of initial peers, these can be provided manually but normally it obtains them by querying a set of DNS domain names which have automatically updated lists, if that doesn't work it falls back to a built-in list which is updated from time to time in new versions of the software. In the reference software initial peers can also be specified manually by adding an addr.txt to the data directory or via the addnode parameter.

==Mining==
===What is mining?===
[[Mining]] is the process of spending computation power to secure Bitcoin transactions against reversal and introducing new Bitcoins to the system.

Technically speaking, mining is the calculation of a [[hash]] of the a block header, which includes among other things a reference to the previous block, a hash of a set of transactions and a [[nonce]]. If the hash value is found to be less than the current [[target]] (which is inversely proportional to the [[difficulty]]), a new block is formed and the miner gets the newly generated Bitcoins (25 per block at current levels). If the hash is not less than the current target, a new nonce is tried, and a new hash is calculated. This is done millions of times per second by each miner.

===Is mining used for some useful computation?===
The computations done when mining are internal to Bitcoin and not related to any other distributed computing projects. They serve the purpose of securing the Bitcoin network, which is useful.

===Is it not a waste of energy?===
Spending energy on creating and securing a free monetary system is hardly a waste. Also, services necessary for the operation of currently widespread monetary systems, such as banks and credit card companies, also spend energy, arguably more than Bitcoin would.

===Why don't we use calculations that are also useful for some other purpose?===
To provide security for the Bitcoin network, the calculations involved need to have some [http://bitcoin.stackexchange.com/questions/5617/why-are-bitcoin-calculation-useless/5618#5618 very specific features]. These features are incompatible with leveraging the computation for other purposes.

===How can we stop miners from creating zero transaction blocks?===
The incentive for miners to include transactions is in the fees that come along with them. If we were to implement some minimum number of transactions per block it would be trivial for a miner to create and include transactions merely to surpass that threshold. As the network matures, the block reward drops, and miners become more dependent on transactions fees to pay their costs, the problem of zero transaction blocks should diminish over time.

===How does the proof-of-work system help secure Bitcoin?===
Bitcoin uses the [[Hashcash]] proof of work with a minor adaption. To give a general idea of the mining process, imagine this setup:

payload = <some data related to things happening on the Bitcoin network>
nonce = 1
hash = [http://en.wikipedia.org/wiki/SHA2 SHA2]( [http://en.wikipedia.org/wiki/SHA2 SHA2]( payload + nonce ) )

The work performed by a miner consists of repeatedly increasing "nonce" until
the hash function yields a value, that has the rare property of being below a certain
target threshold. (In other words: The hash "starts with a certain number of zeroes",
if you display it in the fixed-length representation, that is typically used.)

As can be seen, the mining process doesn't compute anything special. It merely
tries to find a number (also referred to as nonce) which - in combination with the payload -
results in a hash with special properties.

The advantage of using such a mechanism consists of the fact, that it is very easy to check a result: Given the payload and a specific nonce, only a single call of the hashing function is needed to verify that the hash has the required properties. Since there is no known way to find these hashes other than brute force, this can be used as a "proof of work" that someone invested a lot of computing power to find the correct nonce for this payload.

This feature is then used in the Bitcoin network to secure various aspects. An attacker
that wants to introduce malicious payload data into the network, will need to do the
required proof of work before it will be accepted. And as long as honest miners have more
computing power, they can always outpace an attacker.

Also see [http://en.wikipedia.org/wiki/Hashcash Hashcash] and [http://en.wikipedia.org/wiki/Proof-of-work_system Proof-of-work system] and [http://en.wikipedia.org/wiki/SHA2 SHA2] and on Wikipedia.

===Why was the "Generate coin" option of the client software removed?===

The option wasn't removed, but it is now only accessible via the command-line or the configuration file. The reason for this is that many users were complaining after they turned on and expecting to receive coins. Without specialized mining hardware a user is exceptionally unlikely generate a block on their own at the network's current [[difficulty|security level]].

==Security==

===Could miners collude to give themselves money or to fundamentally change the nature of Bitcoin?===

There are two questions in here. Let's look at them separately.

;Could miners gang up and give themselves money?

Mining itself is the process of creating new blocks in the block chain. Each block contains a list of all the transactions that have taken place across the entire Bitcoin network since the last block was created, as well as a hash of the previous block. New blocks are 'mined', or rather, generated, by Bitcoin clients correctly guessing sequences of characters in codes called 'hashes,' which are created using information from previous blocks. Bitcoin users may download specialized 'mining' software, which allows them to dedicate some amount of their processing power – however large or small – to guessing at strings within the hash of the previous block. Whoever makes the right guess first, thus creating a new block, receives a reward in Bitcoins.

The block chain is one of the two structures that makes Bitcoin secure, the other being the public-key encryption system on which Bitcoin trade is based. The block chain assures that not only is every single transaction that ever takes place recorded, but that every single transaction is recorded on the computer of anyone who chooses to store the relevant information. Many, many users have complete records of every transaction in Bitcoins history readily available to them at any point, and anyone who wants in the information can obtain it with ease. These things make Bitcoin very hard to fool.

The Bitcoin network takes considerable processing power to run, and since those with the most processing power can make the most guesses, those who put the most power toward to sustaining the network earn the most currency. Each correct guess yields, at present, twenty-five Bitcoins, and as Bitcoins are presently worth something (although the value still fluctuates) every miner who earns any number of Bitcoins makes money. Some miners pull in Bitcoins on their own; and some also join or form pools wherein all who contribute earn a share of the profits.

Therefore, first answer is a vehement “yes” – not only can miners collude to get more money, Bitcoin is designed to encourage them to do so. Bitcoin pools are communal affairs, and there is nothing dishonest or underhanded about them.

Of course, the real question is:

;Can they do so in ways not sanctioned by Bitcoin network? Is there any way to rip off the network and make loads of money dishonestly?

Bitcoin isn't infallible. It can be cheated, but doing so is extremely difficult. Bitcoin was designed to evade some of the central problems with modern currencies – namely, that their trustworthiness hinges upon that of people who might not have users' best interests in mind. Every currency in the world (other than Bitcoin) is controlled by large institutions who keep track of what's done with it, and who can manipulate its value. And every other currency has value because people trust the institutions that control them.

Bitcoin doesn't ask that its users trust any institution. Its security is based on the cryptography that is an integral part of its structure, and that is readily available for any and all to see. Instead of one entity keeping track of transactions, the entire network does, so Bitcoins are astoundingly difficult to steal, or double-spend. Bitcoins are created in a regular and predictable fashion, and by many different users, so no one can decide to make a whole lot more and lessen their value. In short, Bitcoin is designed to be inflation-proof, double-spend-proof and completely distributed.

Nonetheless, there are a few ways that one can acquire Bitcoins dishonestly. Firstly, one can steal private keys. Key theft isn't something that Bitcoin security has been designed to prevent: it's up to users to keep their keys safe. But the cryptography is designed so that it is completely impossible to deduce someone's private key from their public one. As long as you keep your private key to yourself, you don't have much to worry about. Furthermore, one could theoretically create a new block chain, but due to the way in which the block chain is constructed, this would be extremely difficult and require massive amounts of processing power. A full explanation of the difficulties involved can be found in the [[block chain]] article.

Bitcoin can be ripped off – but doing so would be extremely hard and require considerable expertise and a staggering amount of processing power. And it's only going to get harder with time. Bitcoin isn't impenetrable, but it's close enough to put any real worries in the peripherals.

;Could miners fundamentally change the nature of Bitcoin?

Once again, almost certainly not.

Bitcoin is a distributed network, so any changes implemented to the system must be accepted by all users. Someone trying to change the way Bitcoins are generated would have to convince every user to download and use their software – so the only changes that would go through are those that would be equally benefit all users.

And thus, it is more or less impossible for anyone to change the function of Bitcoin to their advantage. If users don't like the changes, they won't adopt them, whereas if users do like them, then these will help everyone equally. Of course, one can conceive of a situation where someone manages to get a change pushed through that provides them with an advantage that no one notices, but given that Bitcoin is structurally relatively simple, it is unlikely that any major changes will go through without someone noticing first.

The fact that such changes are so difficult to make testifies to the fully distributed nature of Bitcoin. Any centrally controlled currency can be modified by its central agency without the consent of its adherents. Bitcoin has no central authority, so it changes only at the behest of the whole community. Bitcoins development represents a kind of collective evolution; the first of its kind among currencies.

==Help==
===I'd like to learn more. Where can I get help?===

* Read the [[Introduction|introduction to bitcoin]]
* See the videos, podcasts, and blog posts from the [[Press]]
* Read and post on the [[:Bitcoin:Community_portal#Bitcoin_Community_Forums|forums]]
* Chat on one of the [[:Bitcoin:Community_portal#IRC_Chat|Bitcoin IRC]] channels
* Listen to [http://omegataupodcast.net/2011/03/59-bitcoin-a-digital-decentralized-currency/ this podcast], which goes into the details of how bitcoin works
* Ask questions on the [http://bitcoin.stackexchange.com Bitcoin Stack Exchange]
* Use [http://bitcoinx.io BitcoinX.io] to help beginners learn about reputable Bitcoin exchanges and Bitcoin wallets

==See Also==

* [[Man page]]
* [[Introduction]]

==References==
<references>
<references/>
{{Reflist|2}}

[[de:FAQ]]
[[zh-cn:FAQ]]
[[fr:FAQ]]
[[ru:FAQ]]

[[Category:Technical]]
[[Category:Vocabulary]]

How to use a Bitcoin wallet (for newbies)

2015-03-27T13:31:24Z

BitcoinX:

This page aims to be the best resource for new users to understand how Bitcoin wallets work, and how to use them.

== Introduction ==

To use Bitcoin, some sort of wallet is needed. There are [http://bitcoin.org/clients.html several wallet programs] from you to choose from, as well as a web wallet called [http://blockchain.info/wallet/ My Wallet]. Here is a [http://bitcoinx.io/wallets full list of Bitcoin wallets].

== Security ==
Before proceeding, you should [[Securing_your_wallet#Making_a_secure_workspace|make sure your computer system is secure]].

== How to use My Wallet ==
The following demonstrates how to use My Wallet, but most of it applies to any other client you choose.

# [http://blockchain.info/wallet/ Open an account]
# [[Securing_your_wallet#Password_Strength|Choose a strong password]]
## '''Note''' - there is no "reset your password" feature. You must not lose your password.
# Recommended: Associate an email address with the account, for backup purposes.
# You now have a [[Address|Bitcoin Address]], which you can use to receive payments - just email your address to another person, and he can send money directly to this address.
## '''Note''' - anyone who knows your address might be able to analyze your transactions and estimate how much Bitcoins you own. [http://bitcoin.stackexchange.com/questions/52/how-anonymous-are-bitcoin-transactions Understand that Bitcoin is pseudonymous], not anonymous.
# Understand that your wallet can contain numerous bitcoin addresses. It is a good practice to generate a new receiving address for each incoming transaction, to increase anonymity.
# You can now [[How to get free Bitcoins?|get some Bitcoins ... for free]]. Make sure to test it, try sending a few (milli)bitcoins to someone and get the hang of it.
# If you want to own some more Bitcoins, proceed to [[Buying Bitcoins (the newbie version)]]

== How to use another client ==
The other clients are similar in principle to My Wallet, but there are a few important differences:

# You need to download a software to your computer to use them (make sure to only download form a trusted source ... if unsure, ask)
# You have to take care to [[Backup#Backup|make a secure backup of your wallet]].

[[Category:Introduction]]

Category:Introduction

2015-03-27T13:26:34Z

BitcoinX:

This category contains articles that serve as a good introduction to Bitcoin for newcomers to the community.

==See also==

* [[BitcoinMe]]
* [http://www.weusecoins.com What is Bitcoin] video ([http://c2995102.r2.cf0.rackcdn.com/What_is_Bitcoin_hd.mp4 mp4])
* [http://www.bitcoinmoney.com/post/2560941112/rebooting-of-money The Rebooting of Money] blog post (audio podcast and transcript)
* [http://codinginmysleep.com/bitcoin-in-plain-english Bitcoin In Plain English] by David Perry
* [http://lwn.net/Articles/414452 Bitcoin 101 article]
* [http://BitcoinIntro.com Bitcoin Intro]
* [http://bitcoinx.io/how-to-choose-the-right-bitcoin-exchange How to choose the right Bitcoin exchange]
* [http://bitcoinx.io/how-to-choose-the-right-bitcoin-wallet How to choose the right Bitcoin wallet]

Help:FAQ

2014-08-19T19:41:20Z

BitcoinX:

Here you will find answers to the most commonly asked questions.

== General ==
=== What is Bitcoin? ===
Bitcoin is a distributed peer-to-peer digital currency that can be transferred instantly and securely between any two people in the world. It's like electronic cash that you can use to pay friends or merchants.

=== What are bitcoins? ===
Bitcoins are the unit of currency of the Bitcoin system. A commonly used shorthand for this is “BTC” to refer to a price or amount (e.g. “100 BTC”).
There are such things as [[physical bitcoins]], but ultimately, a bitcoin is just a number associated with a [[Address|Bitcoin Address]]. A physical bitcoin is simply an object, such as a coin, with the number carefully embedded inside. See also an [[Introduction|easy intro]] to Bitcoin.

=== How can I get bitcoins? ===

There are a variety of ways to acquire bitcoins:
* You can buy bitcoins from [http://coinbase.com/ Coinbase] or [[File:BIPS.gif|20px|link=https://bipsmarket.com]] [https://bipsmarket.com BIPS Market].
* Accept bitcoins as payment for goods or services.
* The most common way to buy bitcoins are the [[Buying bitcoins|Bitcoin Exchanges]]
* Visit [http://bitcoinx.io bitcoinx.io] for peer-to-peer ratings and reviews of bitcoin exchanges to see where to buy bitcoins
* There are several services where you can [[Buying_Bitcoins_(the_noob_version)|trade them]] for traditional currency.
* Find someone to trade cash for bitcoins in-person through a [https://en.bitcoin.it/wiki/Category:Directories local directory].
* Participate in a [[Pooled mining|mining pool]].
* If you have a lot of mining hardware, you can solo mine and attempt to create a new [[block]] (currently yields 25 bitcoins plus transaction fees).
* Visit sites that provide [[Trade#Free_Samples_and_Offers|free samples and offers]].
* Visit [http://wheretobuycryptocoins.com WhereToBuyCryptoCoins.com] to get a guide how to start with bitcoins and cryptocurrency in general. Shows a list of markets, faucets, exchanges, miner's pools and more.

===Does Bitcoin guarantee an influx of free money?===

Since Bitcoin is a new technology, what it is and how it works may be initially unclear. Bitcoin is sometimes presented as being one of three things:
<ol style="list-style-type: upper-alpha;">
<li>Some sort of online 'get-rich-quick' scam.</li>
<li>A loophole in the market economy, the installation of which guarantees a steady influx of cash.</li>
<li>A sure investment that will almost certainly yield a profit.</li>
</ol>
In fact, none of the above are true. Let's look at them independently.

;Is Bitcoin a 'get-rich-quick' scheme?
:If you've spent much time on the Internet, you've probably seen ads for many 'get-rich-quick' schemes. These ads usually promise huge profits for a small amounts of easy work. Such schemes are usually pyramid/matrix-style schemes that make money from their own employees and offer nothing of any real value. Most convince one to buy packages that will make them earn hundreds a day, which in fact have the buyer distribute more such ads, and make minute profits.

:Bitcoin is in no way similar to these schemes. Bitcoin doesn't promise windfall profits. There is no way for the developers to make money from your involvement or to take money from you. That bitcoins are nearly impossible to acquire without the owner's consent represents one of its greatest strengths. Bitcoin is an experimental, virtual currency that may succeed or may fail. None of its developers expect to get rich off of it.

:A more detailed answer to this question can be found [http://bitcointalk.org/?topic=7815.0 here].

;Will I make money by installing the client?
:Most people who use Bitcoin don't earn anything by doing so, and the default client has no built-in way to earn Bitcoins. A small minority of people with dedicated, high-performance hardware do earn some Bitcoins by "''mining''" (generating new bitcoins, see [[#What is mining?|What is mining?]]) with special software, but joining Bitcoin shouldn't be construed as being the road to riches. Most Bitcoin users get involved because they find the project conceptually interesting and don't earn anything by doing so. This is also why you won't find much speculation about the political or economic repercussions of Bitcoin anywhere on this site: Bitcoin developers owe their dedication to the project's intellectual yieldings more than to those of a monetary nature. Bitcoin is still taking its first baby steps; it may go on to do great things but right now it only has something to offer those chasing conceptually interesting projects or bleeding edge technology.

;As an investment, is Bitcoin a sure thing?
:Bitcoin is a new and interesting electronic currency, the value of which is not backed by any single government or organization. Like other currencies, it is worth something partly because people are willing to trade it for goods and services. Its exchange rate fluctuates continuously, and sometimes wildly. It lacks wide acceptance and is vulnerable to manipulation by parties with modest funding. Security incidents such as website and account compromise may trigger major sell-offs. Other fluctuations can build into positive feedback loops and cause much larger exchange rate fluctuations. Anyone who puts money into Bitcoin should understand the risk they are taking and consider it a high-risk currency. Later, as Bitcoin becomes better known and more widely accepted, it may stabilize, but for the time being it is unpredictable. Any investment in Bitcoin should be done carefully and with a clear plan to manage the risk.

=== Can I buy bitcoins with Paypal? ===

It is possible to buy [[physical bitcoins]] with PayPal but it is otherwise difficult and/or expensive to do so for non-physical bitcoins, because of significant risk to the seller.

There is a [https://www.virwox.com workaround] that can be done in order to use Paypal to buy Bitcoins but it holds within it higher transaction fees. Using the [https://www.virwox.com Virtual World Exchange] you can buy Second Life Lindens (SLL) with Paypal and then convert your SLL to Bitcoins. This process will charge you transaction fees of around 6% but will let you purchase Bitcoins pretty quickly as opposed to a wire transfer. The reason this method works is because you do not buy Bitcoins with Paypal directly, you only buy SLL with Paypal (which is acceptable by Paypal's TOS) and then exchange your SLL to Bitcoin.

While it is possible to find an individual who wishes to sell Bitcoin to you via Paypal, (perhaps via [http://www.bitcoin-otc.com/ #bitcoin-otc] ) most exchanges do not allow funding through PayPal. This is due to repeated cases where someone pays for bitcoins with Paypal, receives their bitcoins, and then fraudulently complains to Paypal that they never received their purchase. PayPal often sides with the fraudulent buyer in this case, which means any seller needs to cover that risk with higher fees or refuse to accept PayPal altogether.

Buying Bitcoins from individuals this way is still possible, but requires the seller to have some trust that the buyer will not file a claim with PayPal to reverse the payment.

=== Where can I find a forum to discuss Bitcoin? ===

Please visit the [[Bitcoin:Community_portal#Bitcoin_Community_Forums_on_various_platforms|Community Portal]] for links to Bitcoin-related forums.

=== How are new bitcoins created? ===

New bitcoins are generated by the network through the process of "[[#What is mining?|''mining'']]". In a process that is similar to a continuous raffle draw, mining nodes on the network are awarded bitcoins each time they find the solution to a certain mathematical problem (and thereby create a new [[block]]). Creating a block is a [[proof of work]] with a difficulty that varies with the overall strength of the network. The reward for solving a block is [[Controlled Currency Supply|automatically adjusted]] so that, ideally, every four years of operation of the Bitcoin network, half the amount of bitcoins created in the prior 4 years are created. A maximum of {{formatnum:10499889.80231183}} bitcoins were created in the first 4 (approx.) years from January 2009 to November 2012. Every four years thereafter this amount halves, so it should be {{formatnum:5250000}} over years 4-8, {{formatnum:2625000}} over years 8-12, and so on. Thus the total number of bitcoins in existence can never exceed {{formatnum:20999839.77085749}} and counting. See [[Controlled Currency Supply]].

Blocks are [[Mining|mined]] every 10 minutes, on average and for the first four years ({{formatnum:210000}} blocks) each block included 50 new bitcoins. As the amount of processing power directed at mining changes, the difficulty of creating new bitcoins changes. This difficulty factor is calculated every 2016 blocks and is based upon the time taken to generate the previous 2016 blocks. See [[Mining]].

=== What's the current total number of bitcoins in existence? ===

[http://blockexplorer.com/q/totalbc Current count]. Also see [https://blockchain.info/charts/total-bitcoins Total bitcoins in circulation chart]

The number of blocks times the coin value of a block is the number of coins in existence. The coin value of a block is 50 BTC for each of the first {{formatnum:210000}} blocks, 25 BTC for the next {{formatnum:210000}} blocks, then 12.5 BTC, 6.25 BTC and so on.

=== How divisible are bitcoins? ===

A bitcoin can be divided down to 8 decimal places. Therefore, 0.00000001 BTC is the smallest amount that can be handled in a transaction. If necessary, the protocol and related software can be modified to handle even smaller amounts.

=== What do I call the various denominations of bitcoin? ===

There is a lot of discussion about the naming of these fractions of bitcoins. The leading candidates are:

* 1 BTC = 1 bitcoin
* 0.01 BTC = 1 cBTC = 1 centibitcoin (also referred to as bitcent)
* 0.001 BTC = 1 mBTC = 1 millibitcoin (also referred to as mbit (pronounced em-bit) or millibit or even bitmill)
* 0.000 001 BTC = 1 μBTC = 1 microbitcoin (also referred to as ubit (pronounced yu-bit) or microbit)

The above follows the accepted international SI prefixes for hundredths, thousandths, and millionths. There are many arguments against the special case of 0.01 BTC since it is unlikely to represent anything meaningful as the Bitcoin economy grows (it certainly won't be the equivalent of 0.01 USD, GBP or EUR). Equally, the inclusion of existing national currency denominations such as "cent", "nickel", "dime", "pence", "pound", "kopek" and so on are to be discouraged; this is a worldwide currency.

One exception is the "satoshi" which is smallest denomination currently possible

* 0.000 000 01 BTC = 1 satoshi (pronounced sa-toh-shee)
which is so named in honour of Satoshi Nakamoto, the pseudonym of the inventor of Bitcoin.

For an overview of all defined units of Bitcoin (including less common and niche units), see [[Units]].

Further discussion on this topic can be found on the forums here:

* [https://bitcointalk.org/index.php?topic=14438.msg195287#msg195287 We need names]
* [https://bitcointalk.org/index.php?topic=8282.0 What to call 0.001 BTC]

=== How does the halving work when the number gets really small? ===

Eventually the reward will go from 0.00000001 BTC to zero and no more bitcoins will be created.

The block reward calculation is done as a right bitwise shift of a 64-bit signed integer, which means it is divided by two and rounded down. The integer is equal to the value in BTC * 100,000,000 since internally in the reference client software, all Bitcoin balances and values are stored as unsigned integers.

With an initial block reward of 50 BTC, it will take many 4-year periods for the block reward to reach zero.

=== How long will it take to generate all the coins? ===

The last block that will generate coins will be block #6,929,999 which should be generated at or near the year 2140. The total number of coins in circulation will then remain static at 20,999,999.9769 BTC.

Even if the allowed precision is expanded from the current 8 decimals, the total BTC in circulation will always be slightly below 21 million (assuming everything else stays the same). For example, with 16 decimals of precision, the end total would be 20,999,999.999999999496 BTC.

=== If no more coins are going to be generated, will more blocks be created? ===

Absolutely! Even before the creation of coins ends, the use of [[transaction fee|transaction fees]] will likely make creating new blocks more valuable from the fees than the new coins being created. When coin generation ends, these fees will sustain the ability to use bitcoins and the Bitcoin network. There is no practical limit on the number of blocks that will be mined in the future.

=== But if no more coins are generated, what happens when Bitcoins are lost? Won't that be a problem? ===

Because of the law of supply and demand, when fewer bitcoins are available the ones that are left will be in higher demand, and therefore will have a higher value. So, as Bitcoins are lost, the remaining bitcoins will eventually increase in value to compensate. As the value of a bitcoin increases, the number of bitcoins required to purchase an item '''de'''creases. This is a [[Deflationary spiral|deflationary economic model]]. As the average transaction size reduces, transactions will probably be denominated in sub-units of a bitcoin such as millibitcoins ("Millies") or microbitcoins ("Mikes").

The Bitcoin protocol uses a base unit of one hundred-millionth of a Bitcoin ("a Satoshi"), but unused bits are available in the protocol fields that could be used to denote even smaller subdivisions.

=== If every transaction is broadcast via the network, does Bitcoin scale? ===
The Bitcoin protocol allows lightweight clients that can use Bitcoin without downloading the entire transaction history. As traffic grows and this becomes more critical, implementations of the concept will be developed. Full network nodes will at some point become a more specialized service.

With some modifications to the software, full Bitcoin nodes could easily keep up with both VISA and MasterCard combined, using only fairly modest hardware (a single high end server by todays standards). It is worth noting that the MasterCard network is structured somewhat like Bitcoin itself - as a peer to peer broadcast network.

Learn more about [[Scalability]].

==Economy==
=== Where does the value of Bitcoin stem from? What backs up Bitcoin? ===
Bitcoins have value because they are useful and because they are [[Controlled Currency Supply|scarce]]. As they are accepted by more merchants, their value will [http://en.wikipedia.org/wiki/Sticky_%28economics%29 stabilize]. See the [[Trade|list of Bitcoin-accepting sites]].

When we say that a currency is backed up by gold, we mean that there's a promise in place that you can exchange the currency for gold. Bitcoins, like dollars and euros, are not backed up by anything except the variety of merchants that accept them.

It's a common misconception that Bitcoins gain their value from the cost of electricity required to generate them. Cost doesn't equal value – hiring 1,000 men to shovel a big hole in the ground may be costly, but not valuable. Also, even though scarcity is a critical requirement for a useful currency, it alone doesn't make anything valuable. For example, your fingerprints are scarce, but that doesn't mean they have any exchange value.

Alternatively it needs to be added that while the law of supply and demand applies it does not guarantee value of Bitcoins in the future. If confidence in Bitcoins is lost then it will not matter that the supply can no longer be increased, the demand will fall off with all holders trying to get rid of their coins. An example of this can be seen in cases of state currencies, in cases when the state in question dissolves and so no new supply of the currency is available (the central authority managing the supply is gone), however the demand for the currency falls sharply because confidence in its purchasing power disappears. Of-course Bitcoins do not have such central authority managing the supply of the coins, but it does not prevent confidence from eroding due to other situations that are not necessarily predictable.

=== Is Bitcoin a bubble? ===
Yes, in the same way as the euro and dollar are. They only have value in exchange and have no inherent value. If everyone suddenly stopped accepting your dollars, euros or bitcoins, the "bubble" would burst and their value would drop to zero. But that is unlikely to happen: even in Somalia, where the government collapsed 20 years ago, [http://en.wikipedia.org/wiki/Somali_shilling Somali shillings] are still accepted as payment.

=== Is Bitcoin a Ponzi scheme? ===
In a Ponzi Scheme, the founders persuade investors that they’ll profit. Bitcoin does not make such a guarantee. There is no central entity, just individuals building an economy.

A ponzi scheme is a zero sum game. Early adopters can only profit at the expense of late adopters. Bitcoin has possible win-win outcomes. Early adopters profit from the rise in value. Late adopters, and indeed, society as a whole, benefit from the usefulness of a stable, fast, inexpensive, and widely accepted p2p currency.

The fact that early adopters benefit more doesn't alone make anything a Ponzi scheme. All good investments in successful companies have this quality.

=== Doesn't Bitcoin unfairly benefit early adopters? ===
Early adopters in Bitcoin are taking a risk and invested resources in an unproven technology. By so doing, they help Bitcoin become what it is now and what it will be in the future (hopefully, a ubiquitous decentralized digital currency). It is only fair they will reap the benefits of their successful investment.

In any case, any bitcoin generated will probably change hands dozens of time as a medium of exchange, so the profit made from the initial distribution will be insignificant compared to the total commerce enabled by Bitcoin. Many of the earliest users of Bitcoin have traded their coins at valuations below $1 US, or other amounts which are small compared to contemporary prices.

===Won't loss of wallets and the finite amount of Bitcoins create excessive deflation, destroying Bitcoin? ===
Worries about Bitcoin being destroyed by deflation are not entirely unfounded. Unlike most currencies, which experience inflation as their founding institutions create more and more units, Bitcoin will likely experience gradual deflation with the passage of time. Bitcoin is unique in that only a small amount of units will ever be produced (twenty-one million to be exact), this number has been known since the project's inception, and the units are created at a predictable rate.

Also, Bitcoin users are faced with a danger that doesn't threaten users of any other currency: if a Bitcoin user loses his wallet, his money is gone forever, unless he finds it again. And not just to him; it's gone completely out of circulation, rendered utterly inaccessible to anyone. As people will lose their wallets, the total number of Bitcoins will slowly decrease.

Therefore, Bitcoin seems to be faced with a unique problem. Whereas most currencies inflate over time, Bitcoin will mostly likely do just the opposite. Time will see the irretrievable loss of an ever-increasing number of Bitcoins. An already small number will be permanently whittled down further and further. And as there become fewer and fewer Bitcoins, the laws of supply and demand suggest that their value will probably continually rise.

Thus Bitcoin is bound to once again stray into mysterious territory, because no one exactly knows what happens to a currency that grows continually more valuable. Many economists claim that a low level of inflation is a good thing for a currency, but nobody is quite sure about what might happens to one that continually deflates. Although deflation could hardly be called a rare phenomenon, steady, constant deflation is unheard of. There may be a lot of speculation, but no one has any hard data to back up their claims.

That being said, there is a mechanism in place to combat the obvious consequences. Extreme deflation would render most currencies highly impractical: if a single Canadian dollar could suddenly buy the holder a car, how would one go about buying bread or candy? Even pennies would fetch more than a person could carry. Bitcoin, however, offers a simple and stylish solution: infinite divisibility. Bitcoins can be divided up and trade into as small of pieces as one wants, so no matter how valuable Bitcoins become, one can trade them in practical quantities.

In fact, infinite divisibility should allow Bitcoins to function in cases of extreme wallet loss. Even if, in the far future, so many people have lost their wallets that only a single Bitcoin, or a fraction of one, remains, Bitcoin should continue to function just fine. No one can claim to be sure what is going to happen, but deflation may prove to present a smaller threat than many expect.

For more information, see the [[Deflationary spiral]] page.

=== What if someone bought up all the existing Bitcoins? ===
Bitcoin markets are competitive -- meaning the price of a bitcoin will rise or fall depending on supply and demand at certain price levels. Only a fraction of bitcoins issued to date are found on the exchange markets for sale. So even though technically, a buyer with lots of money could buy all the bitcoins offered for sale, unless those holding the rest of the bitcoins offer them for sale as well, even the wealthiest, most determined buyer can't get at them.

Additionally, new currency continues to be issued daily and will continue to do so for decades; though over time the rate at which they are issued declines to insignificant levels. Those who are mining aren't obligated to sell their bitcoins so not all bitcoins will make it to the markets even.

This situation doesn't suggest, however, that the markets aren't vulnerable to price manipulation. It doesn't take significant amounts of money to move the market price up or down, and thus Bitcoin remains a volatile asset.

===What if someone creates a new block chain, or a new digital currency that renders Bitcoin obsolete?===

That the block chain cannot be easily forked represents one of the central security mechanisms of Bitcoin. Given the choice between two block chains, a Bitcoin miner always chooses the longer one - that is to say, the one with the more complex hash. Thusly, it ensures that each user can only spend their bitcoins once, and that no user gets ripped off.

As a consequence of the block chain structure, there may at any time be many different sub-branches, and the possibility always exists of a transaction being over-written by the longest branch, if it has been recorded in a shorter one. The older a transaction is though, the lower its chances of being over-written, and the higher of becoming permanent. Although the block chain prevents one from spending more Bitcoins than one has, it means that transactions can be accidentally nullified.

A new block chain would leave the network vulnerable to [[double-spending|double-spend]] attacks. However, the creation of a viable new chain presents considerable difficulty, and the possibility does not present much of a risk.

Bitcoin will always choose the longer Block Chain and determines the relative length of two branches by the complexities of their hashes. Since the hash of each new block is made from that of the block preceding it, to create a block with a more complex hash, one must be prepared to do more computation than has been done by the entire Bitcoin network from the fork point up to the newest of the blocks one is trying to supersede. Needless to say, such an undertaking would require a very large amount of processing power and since Bitcoin is continually growing and expanding, it will likely only require more with the passage of time.

A much more distinct and real threat to the Bitcoin use is the development of other, superior virtual currencies, which could supplant Bitcoin and render it obsolete and valueless.

A great deal of careful thought and ingenuity has gone into the development of Bitcoin, but it is the first of its breed, a prototype, and vulnerable to more highly-evolved competitors. At present, any threatening rivals have yet to rear their heads; Bitcoin remains the first and foremost private virtual currency, but we can offer no guarantees that it will retain that position. It would certainly be in keeping with internet history for a similar system built from the same principles to supersede and cast Bitcoin into obsolescence, after time had revealed its major shortcomings. Friendster and Myspace suffered similar fates at the hand of Facebook, Napster was ousted by Limeware, Bearshare and torrent applications, and Skype has all but crushed the last few disciples of the Microsoft Messenger army.

This may sound rather foreboding, so bear in mind that the introduction of new and possibly better virtual currencies will not necessarily herald Bitcoin's demise. If Bitcoin establishes itself sufficiently firmly before the inception of the next generation of private, online currencies so as to gain widespread acceptance and general stability, future currencies may pose little threat even if they can claim superior design. This is known as the network effect.

=== Is Bitcoin open to value manipulation? ===

The current low market cap of Bitcoin means that any investor with deep enough pockets can significantly change/manipulate the rate. Is this a problem?

This is only a problem if you are investing in Bitcoin for short period of time. A manipulator can't change the fundamentals, and over a period of 5-10 years, the fundamentals will win over any short term manipulations.

==Sending and Receiving Payments==

=== Why do I have to wait 10 minutes before I can spend money I received? ===

10 minutes is the average time taken to find a block. It can be significantly more or less time than that depending on luck; 10 minutes is simply the average case.

[[Blocks]] (shown as "confirmations" in the GUI) are how the Bitcoin achieves consensus on who owns what. Once a block is found everyone agrees that you now own those coins, so you can spend them again. Until then it's possible that some network nodes believe otherwise, if somebody is attempting to defraud the system by reversing a transaction. The more confirmations a transaction has, the less risk there is of a reversal. Only 6 blocks or 1 hour is enough to make reversal computationally impractical. This is dramatically better than credit cards which can see chargebacks occur up to three months after the original transaction!

Ten minutes was specifically chosen by [[Satoshi]] as a tradeoff between first confirmation time and the amount of work wasted due to chain splits. After a block is mined, it takes time for other miners to find out about it, and until then they are actually competing against the new block instead of adding to it. If someone mines another new block based on the old block chain, the network can only accept one of the two, and all the work that went into the other block gets wasted. For example, if it takes miners 1 minute on average to learn about new blocks, and new blocks come every 10 minutes, then the overall network is wasting about 10% of its work. Lengthening the time between blocks reduces this waste.

As a thought experiment, what if the Bitcoin network grew to include Mars? From the farthest points in their orbits, it takes about 20 minutes for a signal to travel from Earth to Mars. With only 10 minutes between new blocks, miners on Mars would always be 2 blocks behind the miners on Earth. It would be almost impossible for them to contribute to the block chain. If we wanted collaborate with those kinds of delays, we would need at least a few hours between new blocks.

[[File:TransactionConfirmationTimesExample.PNG]]

=== Do you have to wait until my transactions are confirmed in order to buy or sell things with Bitcoin? ===

YES, you do, IF the transaction is non-recourse. The Bitcoin reference software does not display transactions as confirmed until six blocks have passed (confirmations). As transactions are buried in the chain they become increasingly non-reversible but are very reversible before the first confirmation. Two to six confirmations are recommended for non-recourse situations depending on the value of the transactions involved.

When people ask this question they are usually thinking about applications like supermarkets. This generally is a recourse situation: if somebody tries to double-spend on a face-to-face transaction it might work a few times, but probabalistically speaking eventually one of the double-spends will get noticed, and the penalty for shoplifting charges in most localities is calibrated to be several times worse than the proceeds of a single shoplifting event.

Double-spends might be a concern for something like a snack machine in a low-traffic area with no nearby security cameras. Such a machine shouldn't honor zero-confirmation payments, and should instead use some other mechanism of clearing Bitcoin or validating transactions against reversal, see the wiki article [[Myths#Point_of_sale_with_bitcoins_isn.27t_possible_because_of_the_10_minute_wait_for_confirmation|here]] for alternatives.

Applications that require immediate payment processing, like supermarkets or snack machines, need to manage the risks. Here is one way to reverse an unconfirmed payment:

A [[Double-spending#Finney_attack|Finney attack]] is where an attacker mines a block containing a movement of some coins back to themselves. Once they find a block solution, they quickly go to a merchant and make a purchase, then broadcast the block, thus taking back the coins. This attack is a risk primarily for goods that are dispatched immediately, like song downloads or currency trades. Because the attacker can't choose the time of the attack, it isn't a risk for merchants such as supermarkets where you can't choose exactly when to pay (due to queues, etc). The attack can fail if somebody else finds a block containing the purchasing transaction before you release your own block, therefore, merchants can reduce but not eliminate the risk by making purchasers wait some length of time that's less than a confirm.

Because pulling off this attack is not trivial, merchants who need to sell things automatically and instantly are most likely to adjust the price to include the cost of reversal fraud, or elect to use special insurance.

=== I was sent some bitcoins and they haven't arrived yet! Where are they? ===

Don't panic! There are a number of reasons why your bitcoins might not show up yet, and a number of ways to diagnose them.

The latest version of the Bitcoin-Qt client tells you how far it has yet to go in downloading the blockchain. Hover over the icon in the bottom right corner of the client to learn your client's status.

If it has not caught up then it's possible that your transaction hasn't been included in a block yet.

You can check pending transactions in the network by going [https://www.biteasy.com here] or [http://blockchain.info here] and then searching for your address. If the transaction is listed here then it's a matter of waiting until it gets included in a block before it will show in your client.

If the transaction is based on a coin that was in a recent transaction then it could be considered a low priority transaction. Transfers can take longer if the transaction fee paid was not high enough. If there is no fee at all the transfer can get a very low priority and take hours or even days to be included in a block.

=== Why does my Bitcoin address keep changing? ===

Unlike postal or email addresses, Bitcoin addresses are single-use.
This means that whenever you want to receive a payment, you need to generate a new address.

While it is technically possible to receive coins multiple times with a single address, this compromises your wallet's security as well as the privacy of the entire Bitcoin network, and also makes it impossible to know for certain who sent the coins or why.

===How much will the transaction fee be?===

Some transactions might require a [[transaction fee]] for them to get confirmed in a timely manner. The transaction fee is processed by and received by the bitcoin miner. The most recent version of the Bitcoin client will estimate an appropriate fee when a fee might be required.

The fee is added to the payment amount. For example, if you are sending a 1.234 BTC payment and the client requires a 0.0005 BTC fee, then 1.2345 BTC will be subtracted from the wallet balance for the entire transaction and the address for where the payment was sent will receive a payment of 1.234 BTC.

A fee might be imposed because your transaction looks like a denial of service attack to the Bitcoin system. For example, it might be burdensome to transmit or it might recycle Bitcoins you recently received. The wallet software attempts to avoid generating burdensome transactions, but it isn't always able to do so: The funds in your wallet might be new or composed of many tiny payments.

Because the fee is related to the amount of data that makes up the transaction and not to the amount of Bitcoins being sent, the fee may seem extremely low (0.0005 BTC for a 1,000 BTC transfer) or unfairly high (0.004 BTC for a 0.02 BTC payment, or about 20%). If you are receiving tiny amounts (''e.g.'' as small payments from a mining pool) then fees when sending will be higher than if your activity follows the pattern of conventional consumer or business transactions.

As of Bitcoin 0.5.3 the required fee will not be higher than 0.05 BTC. For most users there is usually no required fee at all. If a fee is required it will most commonly be 0.0005 BTC.

=== What happens when someone sends me a bitcoin but my computer is powered off? ===

Bitcoins are not actually "sent" to your wallet; the software only uses that term so that we can use the currency without having to learn new concepts. Your wallet is only needed when you wish to spend coins that you've received.

If you are sent coins when your wallet client program is not running, and you later launch the wallet client program, the coins will eventually appear as if they were just received in the wallet. That is to say, when the client program is started it must download blocks and catch up with any transactions it did not already know about.

=== How long does "synchronizing" take when the Bitcoin client is first installed? What's it doing? ===

The popular Bitcoin client software from bitcoin.org implements a "full" Bitcoin node: It can carry out all the duties of the Bitcoin P2P system, it isn't simply a "client". One of the principles behind the operation of full Bitcoin nodes is that they don't assume that the other participants have followed the rules of the Bitcoin system. During synchronization, the software is processing historical Bitcoin transactions and making sure for itself that all of the rules of the system have been correctly followed.

In normal operation, after synchronizing, the software should use a hardly noticeable amount of your computer's resources.

When the wallet client program is first installed, its initial validation requires a lot of work from your computer's hard disk, so the amount of time to synchronize depends on your disk speed and, to a lesser extent, your CPU speed. It can take anywhere from a few hours to a day or so. On a slow computer it could take more than 40 hours of continuous synchronization, so check your computer's power-saving settings to ensure that it does not turn its hard disk off when unattended for a few hours. You can use the Bitcoin software during synchronization, but you may not see recent payments to you until the client program has caught up to the point where those transactions happened.

If you feel that this process takes too long, you can download a pre-synchronized blockchain from [http://eu2.bitcoincharts.com/blockchain/ http://eu2.bitcoincharts.com/blockchain/]. Alternatively, you can try an alternative "lite" client such as Multibit or a super-light client like electrum, though these clients have somewhat weaker security, are less mature, and don't contribute to the health of the P2P network.

==Networking==
=== Do I need to configure my firewall to run Bitcoin? ===

Bitcoin will connect to other nodes, usually on TCP port 8333. You will need to allow outgoing TCP connections to port 8333 if you want to allow your Bitcoin client to connect to many nodes. [[Testnet]] uses TCP port 18333 instead of 8333.

If you want to restrict your firewall rules to a few IPs, you can find stable nodes in the [[Fallback Nodes|fallback nodes list]].

=== How does the peer finding mechanism work? ===

Bitcoin finds peers primarily by forwarding peer announcements within its own network and each node saves a database of peers that it's aware of, for future use. In order to bootstrap this process Bitcoin needs a list of initial peers, these can be provided manually but normally it obtains them by querying a set of DNS domain names which have automatically updated lists, if that doesn't work it falls back to a built-in list which is updated from time to time in new versions of the software. In the reference software initial peers can also be specified manually by adding an addr.txt to the data directory or via the addnode parameter.

==Mining==
===What is mining?===
[[Mining]] is the process of spending computation power to secure Bitcoin transactions against reversal and introducing new Bitcoins to the system.

Technically speaking, mining is the calculation of a [[hash]] of the a block header, which includes among other things a reference to the previous block, a hash of a set of transactions and a [[nonce]]. If the hash value is found to be less than the current [[target]] (which is inversely proportional to the [[difficulty]]), a new block is formed and the miner gets the newly generated Bitcoins (25 per block at current levels). If the hash is not less than the current target, a new nonce is tried, and a new hash is calculated. This is done millions of times per second by each miner.

===Is mining used for some useful computation?===
The computations done when mining are internal to Bitcoin and not related to any other distributed computing projects. They serve the purpose of securing the Bitcoin network, which is useful.

===Is it not a waste of energy?===
Spending energy on creating and securing a free monetary system is hardly a waste. Also, services necessary for the operation of currently widespread monetary systems, such as banks and credit card companies, also spend energy, arguably more than Bitcoin would.

===Why don't we use calculations that are also useful for some other purpose?===
To provide security for the Bitcoin network, the calculations involved need to have some [http://bitcoin.stackexchange.com/questions/5617/why-are-bitcoin-calculation-useless/5618#5618 very specific features]. These features are incompatible with leveraging the computation for other purposes.

===How can we stop miners from creating zero transaction blocks?===
The incentive for miners to include transactions is in the fees that come along with them. If we were to implement some minimum number of transactions per block it would be trivial for a miner to create and include transactions merely to surpass that threshold. As the network matures, the block reward drops, and miners become more dependent on transactions fees to pay their costs, the problem of zero transaction blocks should diminish over time.

===How does the proof-of-work system help secure Bitcoin?===
Bitcoin uses the [[Hashcash]] proof of work with a minor adaption. To give a general idea of the mining process, imagine this setup:

payload = <some data related to things happening on the Bitcoin network>
nonce = 1
hash = [http://en.wikipedia.org/wiki/SHA2 SHA2]( [http://en.wikipedia.org/wiki/SHA2 SHA2]( payload + nonce ) )

The work performed by a miner consists of repeatedly increasing "nonce" until
the hash function yields a value, that has the rare property of being below a certain
target threshold. (In other words: The hash "starts with a certain number of zeroes",
if you display it in the fixed-length representation, that is typically used.)

As can be seen, the mining process doesn't compute anything special. It merely
tries to find a number (also referred to as nonce) which - in combination with the payload -
results in a hash with special properties.

The advantage of using such a mechanism consists of the fact, that it is very easy to check a result: Given the payload and a specific nonce, only a single call of the hashing function is needed to verify that the hash has the required properties. Since there is no known way to find these hashes other than brute force, this can be used as a "proof of work" that someone invested a lot of computing power to find the correct nonce for this payload.

This feature is then used in the Bitcoin network to secure various aspects. An attacker
that wants to introduce malicious payload data into the network, will need to do the
required proof of work before it will be accepted. And as long as honest miners have more
computing power, they can always outpace an attacker.

Also see [http://en.wikipedia.org/wiki/Hashcash Hashcash] and [http://en.wikipedia.org/wiki/Proof-of-work_system Proof-of-work system] and [http://en.wikipedia.org/wiki/SHA2 SHA2] and on Wikipedia.

===Why was the "Generate coin" option of the client software removed?===

The option wasn't removed, but it is now only accessible via the command-line or the configuration file. The reason for this is that many users were complaining after they turned on and expecting to receive coins. Without specialized mining hardware a user is exceptionally unlikely generate a block on their own at the network's current [[difficulty|security level]].

==Security==

===Could miners collude to give themselves money or to fundamentally change the nature of Bitcoin?===

There are two questions in here. Let's look at them separately.

;Could miners gang up and give themselves money?

Mining itself is the process of creating new blocks in the block chain. Each block contains a list of all the transactions that have taken place across the entire Bitcoin network since the last block was created, as well as a hash of the previous block. New blocks are 'mined', or rather, generated, by Bitcoin clients correctly guessing sequences of characters in codes called 'hashes,' which are created using information from previous blocks. Bitcoin users may download specialized 'mining' software, which allows them to dedicate some amount of their processing power – however large or small – to guessing at strings within the hash of the previous block. Whoever makes the right guess first, thus creating a new block, receives a reward in Bitcoins.

The block chain is one of the two structures that makes Bitcoin secure, the other being the public-key encryption system on which Bitcoin trade is based. The block chain assures that not only is every single transaction that ever takes place recorded, but that every single transaction is recorded on the computer of anyone who chooses to store the relevant information. Many, many users have complete records of every transaction in Bitcoins history readily available to them at any point, and anyone who wants in the information can obtain it with ease. These things make Bitcoin very hard to fool.

The Bitcoin network takes considerable processing power to run, and since those with the most processing power can make the most guesses, those who put the most power toward to sustaining the network earn the most currency. Each correct guess yields, at present, twenty-five Bitcoins, and as Bitcoins are presently worth something (although the value still fluctuates) every miner who earns any number of Bitcoins makes money. Some miners pull in Bitcoins on their own; and some also join or form pools wherein all who contribute earn a share of the profits.

Therefore, first answer is a vehement “yes” – not only can miners collude to get more money, Bitcoin is designed to encourage them to do so. Bitcoin pools are communal affairs, and there is nothing dishonest or underhanded about them.

Of course, the real question is:

;Can they do so in ways not sanctioned by Bitcoin network? Is there any way to rip off the network and make loads of money dishonestly?

Bitcoin isn't infallible. It can be cheated, but doing so is extremely difficult. Bitcoin was designed to evade some of the central problems with modern currencies – namely, that their trustworthiness hinges upon that of people who might not have users' best interests in mind. Every currency in the world (other than Bitcoin) is controlled by large institutions who keep track of what's done with it, and who can manipulate its value. And every other currency has value because people trust the institutions that control them.

Bitcoin doesn't ask that its users trust any institution. Its security is based on the cryptography that is an integral part of its structure, and that is readily available for any and all to see. Instead of one entity keeping track of transactions, the entire network does, so Bitcoins are astoundingly difficult to steal, or double-spend. Bitcoins are created in a regular and predictable fashion, and by many different users, so no one can decide to make a whole lot more and lessen their value. In short, Bitcoin is designed to be inflation-proof, double-spend-proof and completely distributed.

Nonetheless, there are a few ways that one can acquire Bitcoins dishonestly. Firstly, one can steal private keys. Key theft isn't something that Bitcoin security has been designed to prevent: it's up to users to keep their keys safe. But the cryptography is designed so that it is completely impossible to deduce someone's private key from their public one. As long as you keep your private key to yourself, you don't have much to worry about. Furthermore, one could theoretically create a new block chain, but due to the way in which the block chain is constructed, this would be extremely difficult and require massive amounts of processing power. A full explanation of the difficulties involved can be found in the [[block chain]] article.

Bitcoin can be ripped off – but doing so would be extremely hard and require considerable expertise and a staggering amount of processing power. And it's only going to get harder with time. Bitcoin isn't impenetrable, but it's close enough to put any real worries in the peripherals.

;Could miners fundamentally change the nature of Bitcoin?

Once again, almost certainly not.

Bitcoin is a distributed network, so any changes implemented to the system must be accepted by all users. Someone trying to change the way Bitcoins are generated would have to convince every user to download and use their software – so the only changes that would go through are those that would be equally benefit all users.

And thus, it is more or less impossible for anyone to change the function of Bitcoin to their advantage. If users don't like the changes, they won't adopt them, whereas if users do like them, then these will help everyone equally. Of course, one can conceive of a situation where someone manages to get a change pushed through that provides them with an advantage that no one notices, but given that Bitcoin is structurally relatively simple, it is unlikely that any major changes will go through without someone noticing first.

The fact that such changes are so difficult to make testifies to the fully distributed nature of Bitcoin. Any centrally controlled currency can be modified by its central agency without the consent of its adherents. Bitcoin has no central authority, so it changes only at the behest of the whole community. Bitcoins development represents a kind of collective evolution; the first of its kind among currencies.

==Help==
===I'd like to learn more. Where can I get help?===

* Read the [[Introduction|introduction to bitcoin]]
* See the videos, podcasts, and blog posts from the [[Press]]
* Read and post on the [[:Bitcoin:Community_portal#Bitcoin_Community_Forums|forums]]
* Chat on one of the [[:Bitcoin:Community_portal#IRC_Chat|Bitcoin IRC]] channels
* Listen to [http://omegataupodcast.net/2011/03/59-bitcoin-a-digital-decentralized-currency/ this podcast], which goes into the details of how bitcoin works
* Ask questions on the [http://bitcoin.stackexchange.com Bitcoin Stack Exchange]
* Use [http://wheretobuycryptocoins.com WhereToBuyCryptocoins]. It shows an cryptocurrency introduction, a getting started guide for beginners, also lists of markets, faucets, exchanges.

==See Also==

* [[Man page]]
* [[Introduction]]

[[de:FAQ]]
[[zh-cn:FAQ]]
[[fr:FAQ]]
[[ru:FAQ]]

[[Category:Technical]]
[[Category:Vocabulary]]

Selling bitcoins

2014-07-02T18:46:24Z

BitcoinX:

There are various methods for selling bitcoins.

Warning: Please be careful with your money. When sending bitcoins to an exchange or other counterparty you are trusting that the counterparty will not abscond with your bitcoins and that the operator maintains secure systems that protect against theft -- internal or external. It is recommended that you obtain the real-world identity of the counterparty and ensure that sufficient recourse is available. Exchanging or storing significant funds with exchanges is not recommended.

==Market Exchanges==
Market exchanges are those in which buy orders are matched with sell orders, so the price offered depends on the market. If a service quotes a price then it is not operating a market but instead is a broker that buys and/or sells coins. Those exchanges are found in the list of fixed-rate exchanges.

{| class="wikitable"
|-
| Exchange || Adding Funds || Withdrawing Funds || Notes
|-
| [[File:Minilogo.png|35px|link=https://www.1bse.com]] [https://1bse.com 1Bse] ([[1Bse|info]]) || BTC LTC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (Payeer.com including Yandex.money, Perfect Money, QIWI) USD (Local Bank Transfer) EUR (International Bank Wire) EUR (Local Bank Transfer) EUR (Payeer.com including Yandex.money, Perfect Money, QIWI) SGD (International Bank Wire) SGD (Local Bank Transfer) CNY (Local Bank Transfer) CNY (International Bank Wire) || BTC LTC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (Payeer.com including Yandex.money, Perfect Money, QIWI) USD (Local Bank Transfer) EUR (International Bank Wire) EUR (Local Bank Transfer) EUR (Payeer.com including Yandex.money, Perfect Money, QIWI) SGD (International Bank Wire) SGD (Local Bank Transfer) CNY (Local Bank Transfer) CNY (International Bank Wire) ||<ul><li>Two-Factor Authentication</li><li>Protection from session steal</li><li>24/7 trading monitoring</li><li>No Fees for transfer funds between 1Bse users</li><li>Fees for transaction - 0.15%</li><li>Based in Hong Kong</li><li>Language: English</li></ul>
|-
| [[File:Hit_20.png|20px|link=https://www.hitbtc.com]][[HITBTC]] || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || <ul> <li>Cutting-edge technology places and matches order in milliseconds</li><li>Two-factor Authentication</li><li>WebSocket subscription for prices and trades</li><li>Asynchronous WebSocket-based trading interface</li><li>FOK and IOC orders</li><li>API</li>
|-
| [[Justcoin]] || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || <ul> <li>Based in Oslo, Norway</li><li>Two-factor Authentication</li><li>API</li>
|-
| [[Kraken]] || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) USD (ACH) || <ul> <li>Legally compliant</li><li>Advanced Stop Orders</li><li>Margin Trading</li><li>Based in San Francisco, CA</li><li>Two-factor Authentication</li><li>API</li>
|-
| [https://www.virwox.info VirWoX] || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP (Credit & Debit cards via [[Skrill]]/Moneybookers) USD,EUR,GBP ([[NETELLER]]) EUR (DIRECTebanking / Sofortüberweisung) USD,EUR,GBP,CHF ([[paysafecard]]) EUR (SEPA bank transfer) || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP ([[Skrill]]/Moneybookers) USD,EUR,GBP ([[NETELLER]]) EUR (SEPA bank transfer) || Trading through Second Life Linden Dollars (highly liquid). Variable limits on PayPal and Credit Card deposits.
|-
| [[Intersango]]([[Britcoin]]) || BTC GBP (bank deposit) EUR (SEPA bank deposit) PLN (bank transfer) || BTC GBP (bank deposit) EUR (SEPA bank transfer) PLN (bank transfer) ||
|-
| [[BTC-E]] || BTC BTC (BTC-e redeemable code) USD (Cash deposit at Post of Russia) USD (Cash deposit at banks including Privatbank, Savings Bank of Russia (Sberbank), RU/UA Terminals, & more) USD (Interkassa) USD (WebMoney - WMZ) USD (Yandex) USD (LiqPay) USD (Perfect Money) USD (QIWI) USD (OKPay) USD (RBK Money) USD (Ditial currencies including НСМЭП (NSMEP), Единый Кошелек (Unified Purse), TeleMoney, & more) USD (BTC-e Redeemable Code) USD (International bank wire) EUR (SEPA bank transfer) RUB (QIWI) RUB (LiqPay) RUB (WebMoney-WMR) RUB (BTC-e Redeemable code) RUB (Bank transfer) || BTC BTC (BTC-e redeemble code) USD (Webmoney - WMZ) USD (Perfect Money) USD (LiqPay) USD (QIWI) USD (PayPal) USD (OKPay) USD (Payza/AlertPay) USD (Privat, Privat UAH) USD (Cash deposit into Savings Bank/Sberbank, Telebank, Alfa Bank) USD (BTC-e Redeemable Code) USD (International Wire Transfer) EUR (SEPA bank transfer) RUB (Cash delivery, possible in Moscow) RUB (QIWI) RUB (LiqPay) RUB (WebMoney WMR) RUB (Яндекс.Деньги Yandex) RUB (RBK Money) Cash deposit (into account at Сбербанка России!/Savings Bank/Sberbank, Телебанк (Telebank), and АльфаБанк (Alfa Bank) RUB (Transfer to credit card VISA & MasterCard) RUB (BTC-e Redeemable code) RUB (Bank transfer) || Language: English, Russian.
|-
| [[VirtEx]] || BTC CAD (cash deposit at BMO Bank of Montreal) CAD (Online bill payment) CAD (Wire transfer) || BTC CAD (direct deposit) CAD (Canada Xpress Post Bank Draft send by mail) CAD Payza (formerly AlertPay) ||
|-
| [[Camp BX]] (CBX) || BTC USD ([[Dwolla]]) USD (P2P bank transfer at Chase, B of A, Wells Fargo and ING. Credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || BTC USD ([[Dwolla]]) USD (ACH Direct Deposit) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li> Security certification from McAfee</li><li> Advanced trading options with AON/FOK/Market</li> <li>STOPLOSS and Short-Selling in Pipeline</li><li> Trading API available</li><li> Wallet API available </li><li> CBX Instant Bitcoin Transfers Feature </li><li> Stoploss / Custom Order Expiry Date/Time </li><li> SMS (Text Message) Notifications </li> <li> Two-Factor Authentication </li> <li> Based in USA - Atlanta </li> </ul>
|-
| [[CoinMKT]] || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (P2P bank transfer at any US bank, credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li>Trade any currency pair</li><li>Fast, web-based ID verification</li><li>Focused on user experience</li><li>Play money trading</li> <li> Based in Santa Monica, CA </li> </ul>
|-
| [[Bitstamp]] || BTC BTC (Redeemable code) EUR (SEPA transfer) USD (Intl wire) USD ([[Ripple]]) CHF || BTC BTC (Redeemable code) EUR (SEPA transfer) USD (Intl wire) USD (Ripple) CHF || EUR and CHF deposits converted to/from USD for trading
|-
| [https://bitcoin-24.com Bitcoin-24] || BTC EUR (SEPA transfer) EUR (Credit Card) EUR (SOFORT Überweisung || BTC EUR (SEPA transfer) || SOFORT Überweisung and Credit Card deposits are instant
|-
| [[Bitcoin Central]] || BTC EUR (SEPA bank transfer) International wire transfer || BTC EUR (SEPA bank transfer) International wire transfer ||
|-
| [[BTCTurk]] || BTC TL (Bank transfer) || BTC TL (Bank transfer) || <ul><li> The first Bitcoin exchange to allow trades in Turkish Lira.</li><li> Available in Turkish language. </li></ul>
|-
| [[FBTC Exchange]] || BTC USD(Domestic Wire Transfer) EUR (Bank transfer) || BTC USD EUR || Based in the Netherlands
|-
| [[FYB-SG]] || BTC SGD(Internet Bank Transfer) SGD (Annonymous Cash Deposit at any UOB Cash Deposit Machine in Singapore). || BTC SGD(Internet Bank Transfer) || <ul><li> Based in Singapore </li> </ul>
|-
| [https://www.itbit.com itBit] || BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire)|| BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire) || Based in Singapore
|-
| [[Rock Currency Exchange]] || BTC SLL (Second Life) USD ([[Dwolla]]) EUR (SEPA bank transfer) || BTC SLL (Second Life) USD ([[Dwolla]]) EUR (SEPA bank transfer) ||
|-
| [[bitNZ]] || BTC NZD (Cash deposit at Westpac) || BTC NZD (Domestic bank transfer) ||
|-
| [[Kapiton.se]] || BTC SEK (Bankgiro Bank Transfer) || BTC SEK (Bankgiro Bank Transfer) || ||
|-
| [[Vault of Satoshi]] || AC AUR BC BIL BTC CAD (Canadian) CGB DGC DOGE DRK EMC2 FLT FTC LTC MINT NMC NOBL NVC PPC QRK RDD USD (US Dollar) VTC WC WDC XPM ZET || AC AUR BC BIL BTC CAD (Canadian) CGB DGC DOGE DRK EMC2 FLT FTC LTC MINT NMC NOBL NVC PPC QRK RDD USD (US Dollar) VTC WC WDC XPM ZET || <ul> <li> Security certification from Symantex</li><li> Bug Bounty Program</li><li> Advanced trading options</li> <li>Only exchange currently doing an open Proof of Solvency </li><li> Trading API available</li><li> Wallet API available </li><li> Create/Redeem VoS Codes for Bitcoin and other coins </li><li> SMS (Text Message) Notifications </li> <li> Two-Factor Authentication (Google, YubiCo, SMS, Email)</li><li></li>Registered Money Services Business<li> Based in Canada </li> </ul>
|-
| [[Vircurex]] || BTC || BTC || Trading in many other P2P/Crypto currencies possible
|-
|}

==Fixed Rate Exchanges & Others==

The following exchanges are either exchanges using a fixed rate based on other markets or are exchanges that enable you to redeem smaller amounts of bitcoins at reasonable rates:

* [[24change.com]] Automatic Bitcoin and e-currencies buy/sell service Bitcoin, USD, UAH, RUB, Visa, MasterCard, EgoPay, Payoneer, MoneyGram, OKPAY, WireTransfer, QIWI, Yandex Money, PayPal, PerfectMoney, Paymer, ePayments, LiqPay, Redpass, WESTERN UNION, International Banks
* [[ALFAcashier]] Instant exchange between Bitcoin, Litecoin, PerfectMoney, LiqPay, OKPay, EgoPay, International Bank Transfer, Russian Bank Tranfer
* [[Bahtcoin]] Trade BTC for Thai Baht, cash, Webmoney, or Thai mobile and gaming prepaid cards.
* [[File:BitSimpleIcon.png|30px|link=https://BitSimple.com]] [https://BitSimple.com Bitsimple.] ([[BitSimple.|info]]) Don't get goxxed again, we never hold user bitcoins. BitSimple will buy your coins directly from any wallet (zero confirmations required). Get your funds same day. Payments by bank wire, ACH, or PayPal transfer.
* [[File:BittyBot-head.png|20px|link=http://BittyBot.co.uk]] [http://BittyBot.co.uk BittyBot] ([[BittyBot|info]]) BittyBot monitors and compares the UK Bitcoin market to help you find the best prices and most reputable traders.
* [[BTC China]] Market for exchanging bitcoins to and from CNY, withdraw CNY (Tencent, Alipay) and USD.
* [[BTCHKEX]] Trade your BTCs for HKD.
* [https://bips.me BIPS] ([[BIPS|info]]) Withdraw funds as Danish Domestic Transfer, or ACH / Direct Deposit in any current, and Wire Transfer to Any Country. DK-based
* [http://www.belgacoin.com Belgacoin.com] The easiest way to sell Bitcoins in Europe. It is fast, secure and cheap. No registration required!
* [[Bestexchangeonline.com]] Buy Sell Exchange Bitcoins with the best price,Instant exchange between Bitcoin , CashU, Perfectmoney, PayPal, Webmoney, Liqpay , Okpay , Egopay .
* [[BitBargain]] Market in the UK for buying bitcoins with GBP instantly from trusted OTC sellers through escrow.
* [https://Bitcash.cz/market Bitcash.cz] ([[Bitcash.cz|info]]) Czech & Slovak Bitcoin Exchange (CZK domestic wire, EUR with SEPA)
* [[Bitcoil]] Exchange BTC for ILS with bank transfers in Israel
* [[Bitcoin Argentina]] Trades BTC for ARS. Cash and bank transfer. No exchange fees.
* [[Bitcoin Nordic]] Sell bitcoins with withdrawal to PayPal or bank transfer.
* [[Bitcoini.com]] Trade bitcoins in Bulgaria and Romania for local currencies, USD worldwide with Western Union, MoneyGram
* [http://bitcoincambodia.com/ bitcoincambodia.com] - Get USD cash for your Bitcoins within hours from any where in Cambodia.
* [http://BitcoinIsrael.co.il BitcoinIsrael.co.il] Get cash (ILS) for your Bitcoins within hours from any where in Israel.
* [[bitcoin-otc]] IRC trading marketplace will usually have people willing to deal for small and larger amounts using various payment methods, including [[PayPal]], [[Dwolla]], [[Linden Dollars]], etc.
* [http://bitcoinx.io BitcoinX.io] BitcoinX is a peer-to-peer review and ratings site for Bitcoin exchanges.
* [[Bitcoin.com.es]] Trade your BTCs for EUR (Bank transfer).
* [[bitcoin.de]] Trade your BTCs for EUR (bank wire, SEPA bank transfer, Money Bookers), person to person, eWallet
* [http://bitcoin.in.th/ Bitcoin in Thailand] Buy and Sell BTC in Thailand for cash via local bank deposits and transfers.
* [[bitcoin.local]] arranges for exchanging currencies in person with someone nearby
* [[Bitcoins In Berlin]] Trade your BTC for cash-in-the-mail (EUR), in-person trande, Western Union, Moneygram, bank transfer or SEPA.
* [[BitMarket.co]] Trade your BTCs for Colombian Peso (COP) as OTC with BTC Escrow.
* [[BitPiggy]] Trade your BTCs for AUD (Bank transfer).
* [https://www.bitquick.co BitQuick.co][https://en.bitcoin.it/wiki/BitQuick.co (info)] Instant exchange to receive cash deposit or SEPA transfer to the seller's bank account for Bitcoin at any price set by seller.
* [[Bittylicious]] Trusted sellers can sell BTC for GBP and EUR via UK bank transfers or SEPA payments
* [https://www.brawker.com Brawker.com][https://en.bitcoin.it/wiki/Brawker (info)] Exchange bitcoins for anything online. Bitcoin owners can order anything they want on the Internet and get a 7% cash back on their purchase. People interested in buying bitcoins can do so by fulfilling someone else's order with their credit card or Paypal account and obtain the equivalent amount in bitcoins.
* [http://BTCInstant.com BTCinstant.com] Trade bitcoins for Virtual Credit Card (VCC, and specifically Virtual Mastercard brand) sent through e-mail.
* [[btcx.se]] / Btcx Sweden || 0% above 80 btc || SEK || Bank transfers to most Swedish banks within 4-12 hours.
* [[Canadian Bitcoins]] Buy/Sell Bitcoins in CAD and receive Cash, Cheque, Bank Transfer (TD Person Pay) or Interac.
* [[Cartão BitCoin]] Convert your bitcoins to reload your debit card (offered to Brazilians, accepted at 10,000 locations in Brazil)
* [[Coin2Pal]] Sell your Bitcoins and receive PayPal funds immediately.
* [[Coinabul]] Trade your BTCs for Gold/Silver
* [http://coinbase.com/?r=514b6eb6a18f2fdde50000db&utm_campaign=user-referral&src=referral-link Coinbase] Sell bitcoins with proceeds delivered as a bank transfer (U.S., as ACH/direct deposit). Instant verification available for new accounts.
* [https://coingator.com CoinGator] || USD || Exchange BTC to USD via MoneyPak, BoA Deposit, Dwolla, and more! Payment within processing time or no exchange fee.
* [http://coinrepublic.com/buy-sell-bitcoins-singapore/ Coin Republic] || SGD (Singapore Dollar)|| Payment via local bank transfer.
* [https://www.cryptxchange.com Cryptxchange] Sell bitcoins for USD or CAD Funds transfered VIA bank tranfer
* [[ECurrencyZone]] Cash out bitcoins to INR, BDT, MYR, SGD via bank transfer or cash deposited to your bank account. Also to Western Union, Moneygram, Citibank global funds transfer, Paypal, Skrill/Moneybookers, Payza/AlertPay, OKPay. Convert to digital currencies C-Gold, Perfect Money, WebMoney and EGOPay.
* [[FastCash4Bitcoins]] Sell your BTC and receive cash today. Over 100,000 BTC bought. Payments issued using your choice of PayPal, Dwolla, ACH (Direct Deposit), Bank Wire, Company Check, Cashier's Check or Silver Bullion even.
* [https://www.happycoins.com HappyCoins] Buy and sell Bitcoins in Euro using the Dutch iDEAL or European SEPA payment system. Fast payout and transparent prices based on real-time exchange prices.
* [https://www.itbit.com itBit] Buy/Sell Bitcoins with SGD/USD/EUR. Institutionally Funded, Advanced Security!
* [[Mang Sweeney]] Use bitcoins to send remittance payments to the Philippines, in-person cash out in metro Manilla or from various remittance centers. Languages: English, Filipino.
* [[Lilion Transfer]] Exchanges bitcoins for [[Pecunix]], [[AlertPay]], [[Skrill]]/Moneybookers, [[PayPal]], and more.
* [[LocalBitcoins]] Exchanges bitcoins for csah, bank wirte transfers, [[OKPay]], [[AlertPay]], [[Skrill]]/Moneybookers, [[PayPal]], [[Dwolla]] and more.
* [[Nanaimo Gold]] Redeem bitcoins for money transfer, money order or direct deposit within Canada.
* [[Spend Bitcoins]] Sell bitcoins for AUD (Australia). Redeem for bank transfer, AustPost reloadable VISA, bill payment and other various methods.
* [http://jzn5w5pac26sqef4.onion.sh/ WeBuyBitcoins] Sell Bitcoins for ACH, PayPal, Cash In Mail, WU/MG.
* [http://localbitcoins.com LocalBitcoins.com] ([[LocalBitcoins|Info]]) Location-based bitcoin to cash exchange.
* [[OKPAY]] || Convert bitcoins from USD, EUR, GBP, RUB, CHF etc via bank wire transfer, USD, EUR via additional direct methods, USD, EUR via Migom, USD, EUR via Money Polo, USD, EUR via Intel Express, USD, EUR via Liqpay, USD, EUR, UAH via Wallet1, RUB via (Yandex Money) and USD via OKPAY Debit Card. Completely non-reversible payments. Support of 19 world currencies, 15 languages.
* [[Dagensia]] Fully licensed EU company exchanging Bitcoins, Bank Wire, SEPA EUR, Debit Cards. USD, EUR, GBP, CAD, CHF, SEK, AUD, CZK
* [http://artabit.com artaBit.com] ([[artaBit|info]]), Sell bitcoins in Indonesia for IDR (rupiah).
* [https://www.bitsofgold.co.il Bits Of Gold] ([[Bits of Gold|info]]), Sell bitcoins in Israel for ILS.
* [https://moneypaktrader.com MoneypakTrader.com] ([[MoneypakTrader.com|info]]), sell bitcoins for [[MoneyPak]].
* [[WM-Center]] Buy/sell Bitcoin, exchange Bitcoin to other e-currencies (such as Perfect Money, PayPal, EgoPay, c-gold, Pecunix, etc) and vice versa.
* [[https://truckcoin.com TRUCK COIN]] Buy/sell Bitcoin directly, easily and anonymously, exchange Bitcoin to all of the e-currencies (such as Perfect Money, PayPal, EgoPay, c-gold, Pecunix, etc) and vice versa depend on the people you deal with.

==Goods and Services==

One way of selling bitcoins is to use them as the payment method when making purchases.

See the [[Trade]] page for a fairly comprehensive list of goods and service that bitcoins will purchase.

==See Also==

* [[:Category:Digital currencies|Digital currencies]]
* [[Buying bitcoins]]
* [[Secure Trading]]
* [[:Category:Local|Local]] exchanges

[[Category:Exchanges]]
[[Category:Introduction]]

Selling bitcoins

2014-07-02T18:45:51Z

BitcoinX: /* Fixed Rate Exchanges & Others */

There are various methods for selling bitcoins.

Warning: Please be careful with your money. When sending bitcoins to an exchange or other counterparty you are trusting that the counterparty will not abscond with your bitcoins and that the operator maintains secure systems that protect against theft -- internal or external. It is recommended that you obtain the real-world identity of the counterparty and ensure that sufficient recourse is available. Exchanging or storing significant funds with exchanges is not recommended.

==Market Exchanges==
Market exchanges are those in which buy orders are matched with sell orders, so the price offered depends on the market. If a service quotes a price then it is not operating a market but instead is a broker that buys and/or sells coins. Those exchanges are found in the list of fixed-rate exchanges.

{| class="wikitable"
|-
| Exchange || Adding Funds || Withdrawing Funds || Notes
|-
| [[File:Minilogo.png|35px|link=https://www.1bse.com]] [https://1bse.com 1Bse] ([[1Bse|info]]) || BTC LTC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (Payeer.com including Yandex.money, Perfect Money, QIWI) USD (Local Bank Transfer) EUR (International Bank Wire) EUR (Local Bank Transfer) EUR (Payeer.com including Yandex.money, Perfect Money, QIWI) SGD (International Bank Wire) SGD (Local Bank Transfer) CNY (Local Bank Transfer) CNY (International Bank Wire) || BTC LTC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (Payeer.com including Yandex.money, Perfect Money, QIWI) USD (Local Bank Transfer) EUR (International Bank Wire) EUR (Local Bank Transfer) EUR (Payeer.com including Yandex.money, Perfect Money, QIWI) SGD (International Bank Wire) SGD (Local Bank Transfer) CNY (Local Bank Transfer) CNY (International Bank Wire) ||<ul><li>Two-Factor Authentication</li><li>Protection from session steal</li><li>24/7 trading monitoring</li><li>No Fees for transfer funds between 1Bse users</li><li>Fees for transaction - 0.15%</li><li>Based in Hong Kong</li><li>Language: English</li></ul>
|-
| [[File:Hit_20.png|20px|link=https://www.hitbtc.com]][[HITBTC]] || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || <ul> <li>Cutting-edge technology places and matches order in milliseconds</li><li>Two-factor Authentication</li><li>WebSocket subscription for prices and trades</li><li>Asynchronous WebSocket-based trading interface</li><li>FOK and IOC orders</li><li>API</li>
|-
| [[Justcoin]] || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || <ul> <li>Based in Oslo, Norway</li><li>Two-factor Authentication</li><li>API</li>
|-
| [[Kraken]] || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) USD (ACH) || <ul> <li>Legally compliant</li><li>Advanced Stop Orders</li><li>Margin Trading</li><li>Based in San Francisco, CA</li><li>Two-factor Authentication</li><li>API</li>
|-
| [https://www.virwox.info VirWoX] || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP (Credit & Debit cards via [[Skrill]]/Moneybookers) USD,EUR,GBP ([[NETELLER]]) EUR (DIRECTebanking / Sofortüberweisung) USD,EUR,GBP,CHF ([[paysafecard]]) EUR (SEPA bank transfer) || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP ([[Skrill]]/Moneybookers) USD,EUR,GBP ([[NETELLER]]) EUR (SEPA bank transfer) || Trading through Second Life Linden Dollars (highly liquid). Variable limits on PayPal and Credit Card deposits.
|-
| [[Intersango]]([[Britcoin]]) || BTC GBP (bank deposit) EUR (SEPA bank deposit) PLN (bank transfer) || BTC GBP (bank deposit) EUR (SEPA bank transfer) PLN (bank transfer) ||
|-
| [[BTC-E]] || BTC BTC (BTC-e redeemable code) USD (Cash deposit at Post of Russia) USD (Cash deposit at banks including Privatbank, Savings Bank of Russia (Sberbank), RU/UA Terminals, & more) USD (Interkassa) USD (WebMoney - WMZ) USD (Yandex) USD (LiqPay) USD (Perfect Money) USD (QIWI) USD (OKPay) USD (RBK Money) USD (Ditial currencies including НСМЭП (NSMEP), Единый Кошелек (Unified Purse), TeleMoney, & more) USD (BTC-e Redeemable Code) USD (International bank wire) EUR (SEPA bank transfer) RUB (QIWI) RUB (LiqPay) RUB (WebMoney-WMR) RUB (BTC-e Redeemable code) RUB (Bank transfer) || BTC BTC (BTC-e redeemble code) USD (Webmoney - WMZ) USD (Perfect Money) USD (LiqPay) USD (QIWI) USD (PayPal) USD (OKPay) USD (Payza/AlertPay) USD (Privat, Privat UAH) USD (Cash deposit into Savings Bank/Sberbank, Telebank, Alfa Bank) USD (BTC-e Redeemable Code) USD (International Wire Transfer) EUR (SEPA bank transfer) RUB (Cash delivery, possible in Moscow) RUB (QIWI) RUB (LiqPay) RUB (WebMoney WMR) RUB (Яндекс.Деньги Yandex) RUB (RBK Money) Cash deposit (into account at Сбербанка России!/Savings Bank/Sberbank, Телебанк (Telebank), and АльфаБанк (Alfa Bank) RUB (Transfer to credit card VISA & MasterCard) RUB (BTC-e Redeemable code) RUB (Bank transfer) || Language: English, Russian.
|-
| [[VirtEx]] || BTC CAD (cash deposit at BMO Bank of Montreal) CAD (Online bill payment) CAD (Wire transfer) || BTC CAD (direct deposit) CAD (Canada Xpress Post Bank Draft send by mail) CAD Payza (formerly AlertPay) ||
|-
| [[Camp BX]] (CBX) || BTC USD ([[Dwolla]]) USD (P2P bank transfer at Chase, B of A, Wells Fargo and ING. Credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || BTC USD ([[Dwolla]]) USD (ACH Direct Deposit) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li> Security certification from McAfee</li><li> Advanced trading options with AON/FOK/Market</li> <li>STOPLOSS and Short-Selling in Pipeline</li><li> Trading API available</li><li> Wallet API available </li><li> CBX Instant Bitcoin Transfers Feature </li><li> Stoploss / Custom Order Expiry Date/Time </li><li> SMS (Text Message) Notifications </li> <li> Two-Factor Authentication </li> <li> Based in USA - Atlanta </li> </ul>
|-
| [[CoinMKT]] || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (P2P bank transfer at any US bank, credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li>Trade any currency pair</li><li>Fast, web-based ID verification</li><li>Focused on user experience</li><li>Play money trading</li> <li> Based in Santa Monica, CA </li> </ul>
|-
| [[Bitstamp]] || BTC BTC (Redeemable code) EUR (SEPA transfer) USD (Intl wire) USD ([[Ripple]]) CHF || BTC BTC (Redeemable code) EUR (SEPA transfer) USD (Intl wire) USD (Ripple) CHF || EUR and CHF deposits converted to/from USD for trading
|-
| [https://bitcoin-24.com Bitcoin-24] || BTC EUR (SEPA transfer) EUR (Credit Card) EUR (SOFORT Überweisung || BTC EUR (SEPA transfer) || SOFORT Überweisung and Credit Card deposits are instant
|-
| [[Bitcoin Central]] || BTC EUR (SEPA bank transfer) International wire transfer || BTC EUR (SEPA bank transfer) International wire transfer ||
|-
| [[BTCTurk]] || BTC TL (Bank transfer) || BTC TL (Bank transfer) || <ul><li> The first Bitcoin exchange to allow trades in Turkish Lira.</li><li> Available in Turkish language. </li></ul>
|-
| [[FBTC Exchange]] || BTC USD(Domestic Wire Transfer) EUR (Bank transfer) || BTC USD EUR || Based in the Netherlands
|-
| [[FYB-SG]] || BTC SGD(Internet Bank Transfer) SGD (Annonymous Cash Deposit at any UOB Cash Deposit Machine in Singapore). || BTC SGD(Internet Bank Transfer) || <ul><li> Based in Singapore </li> </ul>
|-
| [https://www.itbit.com itBit] || BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire)|| BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire) || Based in Singapore
|-
| [[Rock Currency Exchange]] || BTC SLL (Second Life) USD ([[Dwolla]]) EUR (SEPA bank transfer) || BTC SLL (Second Life) USD ([[Dwolla]]) EUR (SEPA bank transfer) ||
|-
| [[bitNZ]] || BTC NZD (Cash deposit at Westpac) || BTC NZD (Domestic bank transfer) ||
|-
| [[Kapiton.se]] || BTC SEK (Bankgiro Bank Transfer) || BTC SEK (Bankgiro Bank Transfer) || ||
|-
| [[Vault of Satoshi]] || AC AUR BC BIL BTC CAD (Canadian) CGB DGC DOGE DRK EMC2 FLT FTC LTC MINT NMC NOBL NVC PPC QRK RDD USD (US Dollar) VTC WC WDC XPM ZET || AC AUR BC BIL BTC CAD (Canadian) CGB DGC DOGE DRK EMC2 FLT FTC LTC MINT NMC NOBL NVC PPC QRK RDD USD (US Dollar) VTC WC WDC XPM ZET || <ul> <li> Security certification from Symantex</li><li> Bug Bounty Program</li><li> Advanced trading options</li> <li>Only exchange currently doing an open Proof of Solvency </li><li> Trading API available</li><li> Wallet API available </li><li> Create/Redeem VoS Codes for Bitcoin and other coins </li><li> SMS (Text Message) Notifications </li> <li> Two-Factor Authentication (Google, YubiCo, SMS, Email)</li><li></li>Registered Money Services Business<li> Based in Canada </li> </ul>
|-
| [[Vircurex]] || BTC || BTC || Trading in many other P2P/Crypto currencies possible
|-
|}

==Fixed Rate Exchanges & Others==

The following exchanges are either exchanges using a fixed rate based on other markets or are exchanges that enable you to redeem smaller amounts of bitcoins at reasonable rates:

* [[24change.com]] Automatic Bitcoin and e-currencies buy/sell service Bitcoin, USD, UAH, RUB, Visa, MasterCard, EgoPay, Payoneer, MoneyGram, OKPAY, WireTransfer, QIWI, Yandex Money, PayPal, PerfectMoney, Paymer, ePayments, LiqPay, Redpass, WESTERN UNION, International Banks
* [[ALFAcashier]] Instant exchange between Bitcoin, Litecoin, PerfectMoney, LiqPay, OKPay, EgoPay, International Bank Transfer, Russian Bank Tranfer
* [[Bahtcoin]] Trade BTC for Thai Baht, cash, Webmoney, or Thai mobile and gaming prepaid cards.
* [[File:BitSimpleIcon.png|30px|link=https://BitSimple.com]] [https://BitSimple.com Bitsimple.] ([[BitSimple.|info]]) Don't get goxxed again, we never hold user bitcoins. BitSimple will buy your coins directly from any wallet (zero confirmations required). Get your funds same day. Payments by bank wire, ACH, or PayPal transfer.
* [[File:BittyBot-head.png|20px|link=http://BittyBot.co.uk]] [http://BittyBot.co.uk BittyBot] ([[BittyBot|info]]) BittyBot monitors and compares the UK Bitcoin market to help you find the best prices and most reputable traders.
* [[BTC China]] Market for exchanging bitcoins to and from CNY, withdraw CNY (Tencent, Alipay) and USD.
* [[BTCHKEX]] Trade your BTCs for HKD.
* [https://bips.me BIPS] ([[BIPS|info]]) Withdraw funds as Danish Domestic Transfer, or ACH / Direct Deposit in any current, and Wire Transfer to Any Country. DK-based
* [http://www.belgacoin.com Belgacoin.com] The easiest way to sell Bitcoins in Europe. It is fast, secure and cheap. No registration required!
* [[Bestexchangeonline.com]] Buy Sell Exchange Bitcoins with the best price,Instant exchange between Bitcoin , CashU, Perfectmoney, PayPal, Webmoney, Liqpay , Okpay , Egopay .
* [[BitBargain]] Market in the UK for buying bitcoins with GBP instantly from trusted OTC sellers through escrow.
* [https://Bitcash.cz/market Bitcash.cz] ([[Bitcash.cz|info]]) Czech & Slovak Bitcoin Exchange (CZK domestic wire, EUR with SEPA)
* [[Bitcoil]] Exchange BTC for ILS with bank transfers in Israel
* [[Bitcoin Argentina]] Trades BTC for ARS. Cash and bank transfer. No exchange fees.
* [[Bitcoin Nordic]] Sell bitcoins with withdrawal to PayPal or bank transfer.
* [[Bitcoini.com]] Trade bitcoins in Bulgaria and Romania for local currencies, USD worldwide with Western Union, MoneyGram
* [http://bitcoincambodia.com/ bitcoincambodia.com] - Get USD cash for your Bitcoins within hours from any where in Cambodia.
* [http://BitcoinIsrael.co.il BitcoinIsrael.co.il] Get cash (ILS) for your Bitcoins within hours from any where in Israel.
* [[bitcoin-otc]] IRC trading marketplace will usually have people willing to deal for small and larger amounts using various payment methods, including [[PayPal]], [[Dwolla]], [[Linden Dollars]], etc.
* [[http://bitcoinx.io BitcoinX.io]] BitcoinX is a peer-to-peer review and ratings site for Bitcoin exchanges.
* [[Bitcoin.com.es]] Trade your BTCs for EUR (Bank transfer).
* [[bitcoin.de]] Trade your BTCs for EUR (bank wire, SEPA bank transfer, Money Bookers), person to person, eWallet
* [http://bitcoin.in.th/ Bitcoin in Thailand] Buy and Sell BTC in Thailand for cash via local bank deposits and transfers.
* [[bitcoin.local]] arranges for exchanging currencies in person with someone nearby
* [[Bitcoins In Berlin]] Trade your BTC for cash-in-the-mail (EUR), in-person trande, Western Union, Moneygram, bank transfer or SEPA.
* [[BitMarket.co]] Trade your BTCs for Colombian Peso (COP) as OTC with BTC Escrow.
* [[BitPiggy]] Trade your BTCs for AUD (Bank transfer).
* [https://www.bitquick.co BitQuick.co][https://en.bitcoin.it/wiki/BitQuick.co (info)] Instant exchange to receive cash deposit or SEPA transfer to the seller's bank account for Bitcoin at any price set by seller.
* [[Bittylicious]] Trusted sellers can sell BTC for GBP and EUR via UK bank transfers or SEPA payments
* [https://www.brawker.com Brawker.com][https://en.bitcoin.it/wiki/Brawker (info)] Exchange bitcoins for anything online. Bitcoin owners can order anything they want on the Internet and get a 7% cash back on their purchase. People interested in buying bitcoins can do so by fulfilling someone else's order with their credit card or Paypal account and obtain the equivalent amount in bitcoins.
* [http://BTCInstant.com BTCinstant.com] Trade bitcoins for Virtual Credit Card (VCC, and specifically Virtual Mastercard brand) sent through e-mail.
* [[btcx.se]] / Btcx Sweden || 0% above 80 btc || SEK || Bank transfers to most Swedish banks within 4-12 hours.
* [[Canadian Bitcoins]] Buy/Sell Bitcoins in CAD and receive Cash, Cheque, Bank Transfer (TD Person Pay) or Interac.
* [[Cartão BitCoin]] Convert your bitcoins to reload your debit card (offered to Brazilians, accepted at 10,000 locations in Brazil)
* [[Coin2Pal]] Sell your Bitcoins and receive PayPal funds immediately.
* [[Coinabul]] Trade your BTCs for Gold/Silver
* [http://coinbase.com/?r=514b6eb6a18f2fdde50000db&utm_campaign=user-referral&src=referral-link Coinbase] Sell bitcoins with proceeds delivered as a bank transfer (U.S., as ACH/direct deposit). Instant verification available for new accounts.
* [https://coingator.com CoinGator] || USD || Exchange BTC to USD via MoneyPak, BoA Deposit, Dwolla, and more! Payment within processing time or no exchange fee.
* [http://coinrepublic.com/buy-sell-bitcoins-singapore/ Coin Republic] || SGD (Singapore Dollar)|| Payment via local bank transfer.
* [https://www.cryptxchange.com Cryptxchange] Sell bitcoins for USD or CAD Funds transfered VIA bank tranfer
* [[ECurrencyZone]] Cash out bitcoins to INR, BDT, MYR, SGD via bank transfer or cash deposited to your bank account. Also to Western Union, Moneygram, Citibank global funds transfer, Paypal, Skrill/Moneybookers, Payza/AlertPay, OKPay. Convert to digital currencies C-Gold, Perfect Money, WebMoney and EGOPay.
* [[FastCash4Bitcoins]] Sell your BTC and receive cash today. Over 100,000 BTC bought. Payments issued using your choice of PayPal, Dwolla, ACH (Direct Deposit), Bank Wire, Company Check, Cashier's Check or Silver Bullion even.
* [https://www.happycoins.com HappyCoins] Buy and sell Bitcoins in Euro using the Dutch iDEAL or European SEPA payment system. Fast payout and transparent prices based on real-time exchange prices.
* [https://www.itbit.com itBit] Buy/Sell Bitcoins with SGD/USD/EUR. Institutionally Funded, Advanced Security!
* [[Mang Sweeney]] Use bitcoins to send remittance payments to the Philippines, in-person cash out in metro Manilla or from various remittance centers. Languages: English, Filipino.
* [[Lilion Transfer]] Exchanges bitcoins for [[Pecunix]], [[AlertPay]], [[Skrill]]/Moneybookers, [[PayPal]], and more.
* [[LocalBitcoins]] Exchanges bitcoins for csah, bank wirte transfers, [[OKPay]], [[AlertPay]], [[Skrill]]/Moneybookers, [[PayPal]], [[Dwolla]] and more.
* [[Nanaimo Gold]] Redeem bitcoins for money transfer, money order or direct deposit within Canada.
* [[Spend Bitcoins]] Sell bitcoins for AUD (Australia). Redeem for bank transfer, AustPost reloadable VISA, bill payment and other various methods.
* [http://jzn5w5pac26sqef4.onion.sh/ WeBuyBitcoins] Sell Bitcoins for ACH, PayPal, Cash In Mail, WU/MG.
* [http://localbitcoins.com LocalBitcoins.com] ([[LocalBitcoins|Info]]) Location-based bitcoin to cash exchange.
* [[OKPAY]] || Convert bitcoins from USD, EUR, GBP, RUB, CHF etc via bank wire transfer, USD, EUR via additional direct methods, USD, EUR via Migom, USD, EUR via Money Polo, USD, EUR via Intel Express, USD, EUR via Liqpay, USD, EUR, UAH via Wallet1, RUB via (Yandex Money) and USD via OKPAY Debit Card. Completely non-reversible payments. Support of 19 world currencies, 15 languages.
* [[Dagensia]] Fully licensed EU company exchanging Bitcoins, Bank Wire, SEPA EUR, Debit Cards. USD, EUR, GBP, CAD, CHF, SEK, AUD, CZK
* [http://artabit.com artaBit.com] ([[artaBit|info]]), Sell bitcoins in Indonesia for IDR (rupiah).
* [https://www.bitsofgold.co.il Bits Of Gold] ([[Bits of Gold|info]]), Sell bitcoins in Israel for ILS.
* [https://moneypaktrader.com MoneypakTrader.com] ([[MoneypakTrader.com|info]]), sell bitcoins for [[MoneyPak]].
* [[WM-Center]] Buy/sell Bitcoin, exchange Bitcoin to other e-currencies (such as Perfect Money, PayPal, EgoPay, c-gold, Pecunix, etc) and vice versa.
* [[https://truckcoin.com TRUCK COIN]] Buy/sell Bitcoin directly, easily and anonymously, exchange Bitcoin to all of the e-currencies (such as Perfect Money, PayPal, EgoPay, c-gold, Pecunix, etc) and vice versa depend on the people you deal with.

==Goods and Services==

One way of selling bitcoins is to use them as the payment method when making purchases.

See the [[Trade]] page for a fairly comprehensive list of goods and service that bitcoins will purchase.

==See Also==

* [[:Category:Digital currencies|Digital currencies]]
* [[Buying bitcoins]]
* [[Secure Trading]]
* [[:Category:Local|Local]] exchanges

[[Category:Exchanges]]
[[Category:Introduction]]

Buying bitcoins

2014-07-02T18:42:52Z

BitcoinX:

There are various methods available for '''buying bitcoins'''. If you are located in the USA, [http://coinbase.com/ Coinbase] is your best option. However, there are multiple exchanges [http://bitcoinx.io/ located in the United States] that have been created in the past year. For countries outside of the United States, [http://bitcoinx.io/country-index/ check here]. See [[Buying Bitcoins (the noob version)|here for a Newb-friendly version]] of this page.

'''NOTE:''' For taking advantage of Bitcoin volatility you are able to trade CFDs through [http://www.avatrade.com/lp/trade-bitcoin?tag=39206&tag2 AvaTrade] or [http://www.plus500.com/Instruments/BTCUSD?id=73407&pl=2 Plus500]. When trading online your capital may be at risk. Trading CFDs is suitable for more experienced traders.

{{Counterparty-warning}}

==Market Exchanges==

Market exchanges are those in which buy orders are matched with sell orders, so the price offered depends on the market. If a service quotes a price then it is not operating a [http://bitcoincharts.com/markets market] but instead is a broker that buys and/or sells coins. Those exchanges are found in the list of [[Buying bitcoins#Fixed_Rate_Exchanges_.26_Others|fixed-rate exchanges]].

Exchanges are listed in alphabetical order.

{| class="wikitable"
|-
| Exchange || Adding Funds || Withdrawing Funds || Notes
|-
| [[File:Minilogo.png|35px|link=https://www.1bse.com]] [https://1bse.com 1Bse] ([[1Bse|info]])|| BTC LTC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (Payeer.com including Yandex.money, Perfect Money, QIWI) USD (Local Bank Transfer) EUR (International Bank Wire) EUR (Local Bank Transfer) EUR (Payeer.com including Yandex.money, Perfect Money, QIWI) SGD (International Bank Wire) SGD (Local Bank Transfer) CNY (Local Bank Transfer) CNY (International Bank Wire) || BTC LTC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (Payeer.com including Yandex.money, Perfect Money, QIWI) USD (Local Bank Transfer) EUR (International Bank Wire) EUR (Local Bank Transfer) EUR (Payeer.com including Yandex.money, Perfect Money, QIWI) SGD (International Bank Wire) SGD (Local Bank Transfer) CNY (Local Bank Transfer) CNY (International Bank Wire) ||<ul><li>Two-Factor Authentication</li><li>Protection from session steal</li><li>24/7 trading monitoring</li><li>No Fees for transfer funds between 1Bse users</li><li>Fees for transaction - 0.15%</li><li>Based in Hong Kong</li><li>Language: English</li></ul>
|-
| [[File:ANXIcon.png|20px|link=https://anxbtc.com]] [https://anxbtc.com ANXBTC]([https://en.bitcoin.it/wiki/Asia_Nexgen_Bitcoin_Exchange info)] || BTC HKD (International Bank Wire) HKD (Local Bank Transfer) HKD (In Store Cash Deposit) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || BTC HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || <ul> <li>Trading Fees as low as 0.05%</li><li>Zero Bank Transfer Deposit Fees</li><li> Daily processing of withdrawals and deposits Mon-Fri<li>All 10 fiat currency orders are maintained within a single order book</li><li> Registered and based in Hong Kong</li><li> An approved Money Services Operator (MSO) with a license issued by the Hong Kong Customs and Excise Department</li><li>Gox compatible trading API Available</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li><li>Accepts cash deposits at the world's first Bitcoin retail store</li><li>Native wallet apps for both [https://play.google.com/store/apps/details?id=com.anxbtc.android Android] and [https://itunes.apple.com/us/app/anx-vault-your-bitcoin-wallet/id855057847?ls=1&mt=8 iOS]</li></ul>
|-
| [[File:ANXIcon.png|20px|link=https://anxpro.com]] [https://anxpro.com ANXPRO]([https://en.bitcoin.it/wiki/Asia_Nexgen_Bitcoin_Exchange info)] || BTC LTC PPC NMC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) HKD (In Store Cash Deposit) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || BTC LTC PPC NMC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || <ul> <li>Trading Fees as low as 0.05%</li><li>Zero Bank Transfer Deposit Fees</li><li>The only crypto-currency exchange in the world that facilitates Altcoin trading in ALL major currencies</li><li> Daily processing of withdrawals and deposits Mon-Fri<li>All 10 fiat currency orders are maintained within a single order book</li><li> Registered and based in Hong Kong</li><li> An approved Money Services Operator (MSO) with a license issued by the Hong Kong Customs and Excise Department</li><li>Gox compatible trading API Available, inc. support for Altcoins</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li><li>Accepts cash deposits at the world's first Bitcoin retail store</li><li>Advanced trading interface including support for keyboard hotkeys (i.e. 'B' for Buy, 'L' for Limit, 'Enter' to execute, etc)</li><li>Native wallet apps for both [https://play.google.com/store/apps/details?id=com.anxbtc.android Android] and [https://itunes.apple.com/us/app/anx-vault-your-bitcoin-wallet/id855057847?ls=1&mt=8 iOS]</li></ul>
|-
| [[File:BitQuickco.png|20px|link=https://www.bitquick.co]] [https://www.bitquick.co BitQuick.co]([https://en.bitcoin.it/wiki/BitQuick.co info)] || BTC Cash Deposit SEPA Transfer (International) || BTC|| Connects buyers to sellers around the globe via bank cash deposit or SEPA transfer. No registration required. Instant deposit to any bitcoin address after cash deposit or SEPA transfer receipt received.
|-
| [https://www.bitsource.org BitSource.org]([https://en.bitcoin.it/wiki/BitSource info)] || BTC LTC PPC Visa Mastercard Cash Deposit SEPA Transfer (International) OKPay Payeer EgoPay SWIFT Transfers/Bank wire PerfectMoney MoneyPak || BTC LTC PPC Bank Wire|| BitSource.org is a crypto-currency exchange platform focused on simplifying the purchase and sale of Bitcoin, Litecoin, and other crypto-currencies. The company holds up to 98% of customer funds in cold wallets and offline in bank vaults to prevent theft or loss.
|-
| [[Bitcoin Central]] || BTC EUR (SEPA bank transfer) International wire transfer || BTC EUR (SEPA bank transfer) International wire transfer ||
|-
| [[bitNZ]] || BTC NZD (Cash depost as Westbank) || BTC NZD (Domestic bank transfer) ||
|-
| [https://www.bitfinex.com/ Bitfinex] || BTC USD (Intl wire)|| BTC USD (Intl wire) ||
|-
| [[Bitstamp]] || BTC EUR (SEPA transfer) USD (Intl wire) USD ([[Ripple]]) CHF || BTC BTC (Redeemable code) EUR (SEPA transfer) USD (Intl wire) USD (Ripple) CHF || EUR and CHF deposits converted to/from USD for trading
|-
| [https://bitcoin-24.com Bitcoin-24] || BTC EUR (SEPA transfer) EUR (Credit Card) EUR (SOFORT Überweisung || BTC EUR (SEPA transfer) || SOFORT Überweisung and Credit Card deposits are instant
|-
| [https://BTCMarkets.net BTCMarkets.net] || BTC LTC AUD (Local Bank Transfer) AUD (Westpac Branch Cash Deposit) || BTC LTC AUD (Local Bank Transfer) || <ul><li>Australia's only locally based full service Bitcoin and Litecoin exchange.</li><li>Branch cash deposits (1-3 hours to clear)</li><li>Fast domestic bank transfers (1-2 business days to clear)</li><li>No deposit or withdrawal fees</li><li>No international bank or currency conversion fees</li><li>Australian owned and operated company with local support</li><li>Trading fees from as low as 0.6%.</li><li>[https://BTCMarkets.net BTCMarkets.net]</li></ul>
|-
| [http://BTCTurk.com BTCTurk.com] || BTC TL (Bank transfer) || BTC TL (Bank transfer) || <ul><li> The first Bitcoin exchange to allow trades in Turkish Lira.</li><li> Available in Turkish language. </li></ul>
|-
| [[BTC-E]] || BTC BTC (BTC-e redeemable code) USD (Cash deposit at Post of Russia) USD (Cash deposit at banks including Privatbank, Savings Bank of Russia (Sberbank), RU/UA Terminals, & more) USD (Interkassa) USD (WebMoney - WMZ) USD (Yandex) USD (LiqPay) USD (Perfect Money) USD (QIWI) USD (OKPay) USD (RBK Money) USD (Ditial currencies including НСМЭП (NSMEP), Единый Кошелек (Unified Purse), TeleMoney, & more) USD (International bank wire) EUR (SEPA bank transfer) RUB (QIWI) RUB (LiqPay) RUB (WebMoney-WMR) RUB (BTC-e Redeemable code) RUB (Bank transfer) || BTC BTC (BTC-e redeemble code) USD (Webmoney - WMZ) USD (Perfect Money) USD (LiqPay) USD (QIWI) USD (PayPal) USD (OKPay) USD (Payza/AlertPay) USD (Privat, Privat UAH) USD (Cash deposit into Savings Bank/Sberbank, Telebank, Alfa Bank) USD (BTC-e Redeemable Code) USD (International Wire Transfer) EUR (SEPA bank transfer) RUB (Cash delivery, possible in Moscow) RUB (QIWI) RUB (LiqPay) RUB (WebMoney WMR) RUB (Яндекс.Деньги Yandex) RUB (RBK Money) Cash deposit (into account at Сбербанка России!/Savings Bank/Sberbank, Телебанк (Telebank), and АльфаБанк (Alfa Bank) RUB (Transfer to credit card VISA & MasterCard) RUB (BTC-e Redeemable code) RUB (Bank transfer) || Language: English, Russian. Interkassa can be funded from Webmoney and many other methods. BitInstant Can be funding option includes QIWI, Cyberplat.
|-
| [https://CampBX.com/ CampBX] (CBX) || BTC USD ([[Dwolla]]) USD (P2P bank transfer at Chase, B of A, Wells Fargo and ING. Credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || BTC USD ([[Dwolla]]) USD (ACH Direct Deposit) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li> Security certification from McAfee</li><li> Advanced trading options with AON/FOK/Market</li> <li>STOPLOSS and Short-Selling in Pipeline</li><li> Trading API available</li><li> Wallet API available </li><li> CBX Instant Bitcoin Transfers Feature </li><li> Stoploss / Custom Order Expiry Date/Time </li><li> SMS (Text Message) Notifications </li> <li> Two-Factor Authentication </li> <li> Based in USA - Atlanta </li> </ul>
|-
| [[CoinMKT]] || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (P2P bank transfer at any US bank, credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li>Trade any currency pair</li><li>Fast, web-based ID verification</li><li>Focused on user experience</li><li>Play money trading</li> <li> Based in Santa Monica, CA </li> </ul>
|-
| [[File:e-cointrade.com logo.png|link=https://www.e-cointrade.com/cointrade/content.jsp?language=English&ref=en.bitcoin.it&id=Home]] [https://www.e-cointrade.com/cointrade/content.jsp?language=English&ref=en.bitcoin.it&id=Home e-CoinTrade.com] ([[e-cointrade.com|info]]) || | Deposits: BTC | LTC | FTC | IXC | NVC | MNC | TRC | PPC USD ([[Perfect Money]]) EUR ([[Perfect Money]]) || | Withdrawals: BTC | LTC | FTC | IXC | NVC | MNC | TRC | PPC USD ([[Perfect Money]]) EUR ([[Perfect Money]]) || <ul><li> Focused in '''symplicity''' for the average user.</li><li> Full multilanguage, available in: English, Deutche, Español, Pусский, Français. </li> <li> Automatic trading platform.</li><li> Trade in any combination of the currency pairs.</li><li> Live ''chatbox'' for users.</li></ul>
|-
| [[FYB-SG]] || BTC SGD(Internet Bank Transfer) SGD (Annonymous Cash Deposit at any UOB Cash Deposit Machine in Singapore). || BTC SGD(Internet Bank Transfer) || Based in Singapore
|-
| [[FYB-SE]] || BTC SEK(Internet Bank Transfer) || BTC SEK(Internet Bank Transfer) || Based in Sweden
|-
| [[File:Hit_20.png|20px|link=https://www.hitbtc.com]][[HITBTC]] || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || <ul> <li>Cutting-edge technology places and matches order in milliseconds</li><li>Two-factor Authentication</li><li>WebSocket subscription for prices and trades</li><li>Asynchronous WebSocket-based trading interface</li><li>FOK and IOC orders</li><li>API</li>
|-
| [https://www.itbit.com itBit] || BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire)|| BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire) || Based in Singapore
|-
| [http://ice3x.co.za iceCUBED] || BTC LTC ZAR (Local and International Bank Transfer) || BTC LTC ZAR (Local and International Bank Transfer) || <ul><li>South Africa's only locally based full-service Bitcoin and Litecoin exchange</li><li>Fast domestic bank transfers (1-2 business days to clear)</li><li>No deposit or withdrawal fees</li><li>No international bank or currency conversion fees</li><li>South African owned and operated company with local support</li><li>Trading fees from as low as 0.6%.</li><li>[http://ice3x.co.za iceCUBED]</li></ul>
|-
| [[Justcoin]] || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || <ul> <li>Based in Oslo, Norway</li><li>Two-factor Authentication</li><li>API</li>
|-
| [[Kapiton.se]] || BTC SEK (Bankgiro Bank Transfer) || BTC SEK (Bankgiro Bank Transfer) ||
|-
| [[Kraken]] || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) USD (ACH) || <ul> <li>Legally compliant</li><li>Advanced Stop Orders</li><li>Margin Trading</li><li>Based in San Francisco, CA</li><li>Two-factor Authentication</li><li>API</li>
|-
| [[File:MMB.png|20px|link=https://www.mengmengbi.cn]] [https://www.mengmengbi.cn Mengmengbi (萌萌币)]([https://en.bitcoin.it/wiki/Mengmengbi info)] || BTC LTC PPC NMC DOGE CNY(Local Bank Transfer) || BTC LTC PPC NMC DOGE CNY(Local Bank Transfer) || <ul> <li>Powered by [https://www.anxpro.com ANX] </li><li>Zero Trading Fees</li><li> Instant processing of CNY deposits</li><li> Near realtime processing of CNY withdraways (Mon-Fri)</li><li>Gox compatible Trading API with BTC, DOGE, LTC, PPC, NMC support</li><li>Zero bank transfer fees</li><li>Shared liquidity with ANX, one of the top 10 Bitcoin exchanges in the world</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li></ul>
|-
| [[Rock Currency Exchange]] || BTC EUR (SEPA transfer) SLL (Second Life) USD (Dwolla) || BTC EUR (SEPA transfer) SLL (Second Life) USD (Dwolla) ||
|-
| [[VirtEx]] || BTC CAD (cash deposit at Bank of Montreal or ScotiaBank) CAD (Online bill payment) CAD (Wire transfer) || BTC CAD (direct deposit) CAD (Canada Xpress Post Bank Draft send by mail) CAD Payza (formerly AlertPay) ||
|-
| [https://www.virwox.com/ VirWox] || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP (Credit & Debit cards via [[Skrill]]/Moneybookers) USD,EUR,GBP ([http://www.neteller.com NETELLER]) EUR (DIRECTebanking / Sofortuberweisung) USD,EUR,GBP,CHF ([http://www.paysafecard.com PaySafe Card]) EUR (SEPA bank transfer) USD ([[UKash]] vouchers) || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP ([[Skrill]]/Moneybookers) USD,EUR,GBP ([http://www.neteller.com NETELLER]) EUR (SEPA bank transfer) || Trading through Second Life Linden Dollars. Variable limits on PayPal and Credit Card deposits.
|-
| [https://www.bitcointoyou.com BitcoinToYou] || BTC BRL USD EUR || BTC BRL USD EUR || Language: Portuguese (português), customer can buy in cash ou bank deposit at HSBC, SANTANDER, ITAÚ, CAIXA, BRADESCO and BANCO DO BRASIL.
|-
| [[MORREX]] || BTC CAD CAD (Online bill payment) CAD (Wire transfer) || BTC CAD CAD (Canada Xpress Post Bank Draft send by mail) CAD ||
|}

==Fixed Rate Exchanges & Others==
For smaller amounts, the options are limited due to bank transfer fees, conversion fees and transaction size restrictions. Options include:

{| class="wikitable"
|-
| Service || Payment Method || Notes
|-
| [https://www.alfacashier.com ALFAcashier] || BTC Bitcoin LTC Litecoin USD PerfectMoney USD LiqPay USD OKPay USD EgoPay USD BTC-E coupon/refill USD (International Bank Wire) EUR (International Bank Wire) RUB (Russian Bank Wire) || Instant exchanger. Language: English, German, Russian, Chinese <ul><li>Cumulative discount system</li><li>Affiliate program</li><li>Fees only 1-3%</li></li>
|-
| [https://www.bestexchangeonline.com Bestexchangeonline.com] || USD PerfectMoney EUR PerfectMoney Cashu Egopay Okpay Bitcoin Webmoney PayPal USD LiqPay RUB || Buy Sell Exchange Bitcoins with the best price. <ul><li>Instant Exchange</li><li>24/7/365 support</li>
|-
| [[File:BitSimpleIcon.png|30px|link=https://BitSimple.com]] [https://BitSimple.com BitSimple.] ([[BitSimple.|info]]) || USD (bank wire) || Don't get goxxed again! We never hold user's bitcoins. Purchased bitcoins will be directly transferred to your personal bitcoin wallet. Stop accepting long delays waiting for funding. We will lock in a rate once you confirm the wire has been sent, and will deliver your purchased coins the same day, usually within an hour.
|-
| [[File:BittyBot-head.png|20px|link=http://BittyBot.co.uk]] [http://BittyBot.co.uk BittyBot] ([[BittyBot|info]]) || GBP (varies person to person) || BittyBot monitors and compares the UK Bitcoin market to help you find the best prices and most reputable traders.
|-
| [https://quickbitcoin.co.uk Quickbitcoin.co.uk] ([[Quickbitcoin|info]]) || GBP (bank transfer) || Buy bitcoins in the UK in under 1 hour from trusted uk seller. Payments by UK bank transfer. No sign up required. [http://www.trustpilot.co.uk/review/quickbitcoin.co.uk See reviews here].
|-
| [https://24change.com 24Change.com] ([[24change.com|info]]) ||
* USD, UAH, RUB, Visa, MasterCard
* C-Coin, eCoin, EgoPay, Payza, Payoneer, EPESE, MoneyGram, OKPAY, WireTransfer, QIWI, Yandex Money, BTC-E code, PayPal, PerfectMoney, Paymer, ePayments, LiqPay, Redpass, WESTERN UNION, C-Gold, Pecunix
* International Banks, Sberbank, Alfa-Bank, Privat24, Svyaznoy Bank, VTB24
||
* Automatic bitcoin and e-currencies buy/sell service
* 24/7/365 fast and reliable e-currencies exchange
* Unlimited reserves
* 15% Affiliate program
|-
|[[File:favicon_b4c.jpg|20px|link=https://bit4coin.net]] [https://bit4coin.net bit4coin.net] ([[bit4coin|info]]) || [https://www.sofort.com SOFORT banking] SEPA transfer (EUR) International bank transfer || Buy bitcoin with gift vouchers: Order bit4coin gift vouchers online at [https://bit4coin.net bit4coin.net] and get them shipped to your door, ready to redeem into bitcoins. No registration required. Perfect for own use or as gift.
|-
| [[File:BitQuickco.png|20px|link=https://www.bitquick.co]] [https://www.bitquick.co BitQuick.co] ([https://en.bitcoin.it/wiki/BitQuick.co info)] || Cash Deposit or SEPA Transfer Only (International) || Connects buyers to sellers around the globe via bank cash deposit or SEPA transfer. No registration required. Instant deposit to any bitcoin address after cash deposit or SEPA transfer receipt received.
|-
| [https://www.cryptxchange.com Cryptxchange] || USD (Cash Deposit) USD (Wire Transfer) CAD (Cash Deposit) CAD (Wire Transfer) You may make cash deposits at any Chase Bank Internationally (ARS, GBP, EUR, AUD, BRL, CLP, COP, EGP, KYD, SAR, CNY, AED, JPY, INR || A multinational US based cryptographic currency exchange. No login or account creation required. No identity verification required. Exquisite customer service. Average transaction time under two hours depending on the time of the day. One of the most anonymous and reliable exchanges on the net. We use SSL & AES-256 military grade encryption for all communication
|-
| [https://www.getbitcoin.com.au Bitcoin (Australia)] || AUD (Bank Deposit) || Bitcoin (Australia) / [https://www.getbitcoin.com.au www.getbitcoin.com.au] offers rapid transfer at low rates.
|-
| [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS] ([[BIPS|info]]) || CAD (Cash deposits in Canada Any Currency (Wire Transfer - Any Country) USD || <ul><li>DK-based</li><li>[https://github.com/BitcoinInternetPaymentSystem BIPS GitHub]</li><li>[https://bips.me/connect/BitcoinInternetPaymentSystemAPI.pdf REST API]</li></ul>
|-
| [http://indo-bitcoin.com Indo-Bitcoin.com] || IDR Mandiri (Cash deposit and wire transfer) IDR BNI (Cash deposit and wire transfer) IDR BCA (Cash deposit and wire transfer) IDR BRI (Cash deposit and wire transfer) || Beli Bitcoin di Indonesia. Lowest fees, max. 30 minutes per transfer, 24 hours 7 days. No verification required.
|-
| [https://Bitcash.cz/market Bitcash.cz] ([[Bitcash.cz|info]]) || CZK domestic wire, EUR with SEPA || Live Auction Rates, person-to-person contract fulfillment
|-
| [https://www.bitbrothersllc.com BitBrothers LLC] || Bank Transfer/Cash/Moneygram || If you are looking for an extremelly simple and anonymous way to purchase bitcoins, this is the best place to do it. We are so sure you will be a repeat customer that we are willing to provide discounts for first time buyers. Best Customer service in the industry.
|-
| [https://truckcoin.com TRUCK COIN] || Bank Transfer/Paypal/Wester Union/Moneygram/Cash/any method with any currency || There is another anonymous way to purchase bitcoins, this is the best safety and anonymous way.
|-
| [https://bitcointalk.org/index.php?topic=237164.0 Bitcoin-Brokers (USA)] || Cash deposit || At major banks like Bank of America, Chase, Wells Fargo, PNC, Citibank. No ID, No registration. Immediate fundings.
|-
| [https://bitcoini.com Bitcoini.com (Bulgaria, Romania)] || BGN (Bank deposit, Cash, EasyPay, Post, Econt) RON (Bank deposit) USD (Western Union, MoneyGram) || Fast and secure way to buy/sell bitcoins. Live support
|-
| [http://www.bitcoinbymobile.com BitcoinByMobile.com] || Mobile Phone (Premium SMS)|| Buy bitcoins instantly using just your mobile phone. No registration or personal financial information needed. Available in: Austria, France, Germany, Luxembourg, Netherlands, Portugal, Spain, and United Kingdom
|-
| [http://www.btc-dealer.com BTC-Dealer] || Credit Card through Liqpay || No signup required. Instant deposit to any bitcoin address
|-
| [https://moneypaktrader.com MoneypakTrader.com] ([[MoneypakTrader.com|info]]) || Moneypak (USD) <======> BTC BTC <======> Moneypak (USD) ReLoadit, etc. (USD) <====> BTC BTC <======> ReLoadit, etc. (USD) || Pays a bonus over market for your BTC Charges a fee over market for your Moneypak, etc. Only accepts codes from original purchaser Attempts to have regular customers processed within 24 hrs Available for discussion via TorChat
|-
| [https://bitbargain.co.uk BitBargain] ([[BitBargain|info]]) || GBP || Quick transactions via Bank Transfer (fast payments support only), Pingit and Ukash. Deals happen between buyer and seller.
|-
| [https://bittylicious.com Bittylicious] ([[Bittylicious|info]]) || GBP, EUR, ZAR || Near instant transactions via UK Bank Transfer (Faster Payments only). No sign up required but can buy more if registered.
|-
| [http://btc.pt BTC.pt] || EUR (Multibanco) || Anonymous transactions. Pay the amount on any Portuguese ATM(MB) or homebanking service, we'll deduce our fee and buy the coins for you at market rate and send them very fast to your wallet. Only available in Portugal.
|-
| [https://www.bitcointrader.com.au Bitcointrader] ([[Bitcointrader|info]]) || AUD (Cash deposit) || Lowest fee in Australia! Only 5%. Buy and sell bitcoins quickly and easily! Cash deposit at any Westpac Bank and National Australia Bank branch in Australia.
|-
| [https://blockchain.info/wallet/deposit-methods Blockchain] ([[BlockChain.info|info]]) || USD, GBP, EUR, BRL, AUD, CAD, JPY, EUR, CHF, PLN, CZK, RON, RUB, SEK, NOK, DKK || Purchased through [[BitInstant]] (U.S., Brazil, and Russia), Barclay's Pingit or Bank Transfer (GBP), Instant Bank Transfer (EUR) or SMS or premium phone call from a mobile.
|-
| [[BitInstant]] || USD (Cash deposit at banks, 7-11, Walmart, CVS, Moneygram locations) USD (Dwolla) BRL (Cash deposit at Banco Rendimento or through Boleto) RUB (Cash deposit through Qiwi or Cyberplat) || Deposit cash at 700,000 locations around the world and have your Bitcoins within 30 minutes. Absolute fastest and easiest way to buy Bitcoins.
|-
| [[Coinapult]] || Use [[BitInstant]] to use cash to purchase bitcoins sent to e-mail or SMS. Choose "Bitcoin to e-mail" service and enter either e-mail or SMS. ||
|-
| [https://www.ripio.com/ Ripio] || Buy bitcoin in Argentina using cash payment networks like PagoFacil, RapiPago, etc. || A good option for bitcoin beginners transactions take usually less than 24 hours and places for doing the payments are all over.
|-
| [http://coinbase.com/?r=514b6eb6a18f2fdde50000db&utm_campaign=user-referral&src=referral-link Coinbase] || Buy and sell bitcoin by connecting a U.S. based bank account. Users need the account and routing numbers that can be found on a check to get started. || Instant verification available for new accounts. Purchased bitcoin can be held in Coinbase's online wallet. Generally considered a good option for U.S. based bitcoin beginners.
|-
| [[Coin-Daddy]] || Buy bitcoins with PayPal and OKPAY || No verification needed. Customer just needs to pay with PayPal, leave the Wallet address and then he receives his coins, or pays via OKPAY. Available for purchase are: Bitcoins, Litecoins and PPCoins.
|-
| [http://BitcoinIsrael.co.il BitcoinIsrael.co.il] || ILS (NIS - New Israeli Shekel)
* via bank transfer
* via Bank HaDoar /Post Office Bank (instant transfer)
* via In Person
|| Buy and sell your Bitcoins within minutes in person. Get "same day" service using Bank HaDoar /Post Office Bank. Get "next day" service using Bank Transfer.
|-
| [[Bitcoin Nordic]] ||
*EUR/DKK (SEPA and wire transfer)
*USD, EUR, GBP, DKK, SEK, NOK (Cash or check in the mail)
*AED, DZD, EGP, IQD, ILS, JOD, KWD, LGP, LYD, MRO, MYR, NGN, OMR, PKR, QAR, SAR, TRL, TZS, TND, YER ([[CashU]] card)
*MXN, EYU, BOB, BRL, COP, SYP, MAD, GHC, ZAR, CNY, CAD, and more ([[UKash]] voucher)
|| For UKash, redeemed through CashU account.
|-
| [[Spend Bitcoins]] || AUD (Cash deposit) || AUD cash deposit at NAB, Commonwealth Bank, Westpac and ANZ.
|-
| [https://bitcoinmylife.com/jml/buy-bitcoins BitcoinMyLife] ([[BitcoinMyLife|info]]) || EUR (SEPA bank transfer) || Simple and Safe. Pay first transaction fee with Twitter or Facebook post.
|-
| [[bitcoin.de]] || EUR (bank wire) EUR (SEPA bank transfer) EUR ([[Skrill]]/Moneybookers) || Varies (person to person) 0.01 free Bitcoins for every new user eWallet Affiliate program Language: German, Englisch News
|-
| [https://www.BitcoinZAP.com BitcoinZAP] || SEPA bank transfer - EUR International bank transfer - EUR, USD Western Union MoneyGram Cash (in the mail) - EUR, USD, CAD, GBP, HKD, JPY, PLN, AUD, CHF, CZK, DKK, HUF, MOP, SEK, NOK || Bitcoins usually delivered in less than 24 hours after payment is received
|-
| [[BTCX.se]] || SEK || Transfer to and banks in Sweden.
|-
| [[BTC China]] || || Converted to CNY for trading.
|-
| [[bitcoincambodia.com]] || USD (Cash, possible to pay everywhere in Cambodia) || You can buy Bitcoins for USD in Cambodia.
|-
| [[BitMarket.co]] || COP (Colombian Peso) || Varies (person to person)
|-
| [[bitcoin-otc|#bitcoin-otc]] || Person-to-person, various methods || IRC trading marketplace will usually have people willing to deal for small and larger amounts using various payment methods, including [[PayPal]], [[Dwolla]], [[Linden Dollars]], etc.
|-
| [[Canadian Bitcoins]] || CAD (Cash - XpressPost or Dropoff) USD (Cash - Courier: UPS, FedEx, etc.) || For dropoff, office in Ottawa.
|-
| [http://coinrepublic.com/buy-sell-bitcoins-singapore/ Coin Republic] || SGD (Singapore Dollar)|| Payment via local bank transfer.
|-
| [https://dgtmkt.com Dgtmkt] ([[Dgtmkt|info]]) || Malaysian Ringgit (MYR) Online bank transfers (Maybank2U, CIMB, MEPS, etc) E-vouchers (Web Cash, Mobile Money) || Bitcoin merchant for Malaysians,. dealing in Malaysian Ringgit. Fully automated immediate transfers. https://dgtmkt.com
|-
| [https://www.dagensia.eu Dagensia] ([[Dagensia|info]]) ||
* SEPA Bank Transfer (EUR)
* ATM card (EUR, USD)
* Sofort Banking (EUR)
* Direct Banking (EUR)
* Payza (official Exchanger)
* EgoPay, c-gold
* BUY AND SELL BITCOINS
|| Dagensia allows you to Buy and Sell Bitcoins and to store Bitcoins securely. You can get your first Bitcoin today, or you can start accepting Bitcoins directly into EUR or USD balance and ATM card. Sell and buy your Bitcoins through Wire, or SEPA EUR transfer, Direct Banking, ATM Cards. '''Fully licensed exchanger''', supervised by Czech National Bank
|-
| [[Lilion Transfer]] || Bank Transfer: USD, AUD, CAD, JPY, EUR, CHF, GBP, PLN, CZK, RON, BGN, HRK, RUB, SEK, NOK, DKK, LTL, LVL Perfect Money Monetto OK Pay Cosmic Pay Pecunix C-Gold E-Pay Payments PayPal|| 122 accounts worldwide. Support in 30 languages
|-
| [[Nanaimo Gold]] || Western Union money transfer Moneygram money transfer Cash in the mail || Digital Currency <--> Bitcoin exchange is automated For cash in the mail send USD, EUR, CAD, or GBP. Canada mailing address.
|-
| [[Bitcoin Argentina]] || Cash: ARS, BRL, USD Bank transfer: ARS || No exchange fees!
|-
| [[Bitcoin.com.es]] || EUR (bank deposit) || Bank transfer or cash deposits at OpenBank in Spain.
|-
| [[Bahtcoin]] || Cash, Webmoney || Will cash out to Thai mobile and gaming prepaid cards as well.
|-
| [http://bitcoin.in.th Bitcoin Thailand] || THB: Cash/Bank Deposit || Same day service.
|-
| [[BitPiggy]] || AUD (Australian Dollar)|| Payment via bank transfer.
|-
| [[bitcoin.local]] || Person-to-person, various methods ||
|-
| [[bcchanger.com]] || Person-to-person via PayPal, [[Skrill]]/Moneybookers and other e-currency platforms ||
|-
| [[Bitcoil]] || ILS (bank transfer) ||
|-
| [[File:BXlogoSM.jpeg|link=http://bitXoin.com]] [http://bitXoin.com bitXoin] ([[bitXoin|info]]) || AUD (Cash deposits) || Fast transaction processing, market rates with low commissions and no fees.
Contact BUYbulk@bitXoin.com for special rates on BUY BTC transactions over $10,000 and SELLbulk@bitXoin.com for SELL BTC transactions over BTC50
https://bitXoin.com/
|-
|[[btcnow]] || USD (OKPay, Dwolla) || bitcoins transferred instantly
|-
| [http://localbitcoins.com LocalBitcoins.com] || Varies (person to person) Physical cash locally [https://localbitcoins.com/buy-bitcoins-online/cash-deposit/ Cash deposit] [https://localbitcoins.com/buy-bitcoins-online/okpay/ OKPay] [https://localbitcoins.com/buy-bitcoins-online/paypal/ PayPal] [https://localbitcoins.com/buy-bitcoins-online/dwolla/ Dwolla] [https://localbitcoins.com/buy-bitcoins-online/sepa-eu-bank-transfer/ SEPA Bank transfer] || Find your local bitcoin dealer, or purchase safely online using escrow! With dynamic pricing with equations. eWallet 
[https://localbitcoins.com/affiliate/ Affiliate program] 
[https://localbitcoins.com/api-docs/ API]
|-
| [https://www.bitbuy.nl BitBuy] || EUR (iDEAL) || Buy bitcoins instantly with iDEAL from the Netherlands. User will get price updates during the payment process.
|-
| [https://www.happycoins.com HappyCoins] || EUR (iDEAL and SEPA bank transfer) || Buy and sell Bitcoins. Use the Dutch iDEAL payment system to receive Bitcoins within minutes. Prices are based on near real-time exchange prices.
|-
| [[ECurrencyZone]] || BTC INR (Cash deposit of Indian rupee) BDT (Cash deposit of Bangladeshi taka) NPR (Cash deposit of Nepalese rupee) MYR (Cash deposit of Malaysian ringitt) SGD (Cash deposit of Singaporean dollar) SGD (Net/Bank transfer) USD (Western Union, Moneygram, Citibank global funds transfer, OKPay) USD || Bank transfer considered at all locations with prior approval.
|-
| [[BitCoinVend]] || BTC USD (PayPal) || bitcoinvend@gmail.com, market variable with commission, quote based, verified paypal account with anti scammer verification
|-
| [[Bitcoins In Berlin]] || EUR (Cash in-the mail) EUR (Cash in-person trade) EUR (SEPA bank transfer) EUR (Western Union) || Cash in-the-mail is to a Berlin P.O. box. In-person trade is in Berlin.
|-
| [https://www.lojabitcoin.pt Loja Bitcoin] || EUR (ATM/Multibanco) EUR (bank transfer) EUR (money order) EUR (cash) || Several payment methods like the Portuguese "Multibanco" (ATM), "Vale postal CTT" (money order by mail), bank transfer and cash (in some locations) - Portugal only at the moment
|-
| [[Mang Sweeney]] || PHP (Cash) PHP (Cash deposit at bank) || Languages: English, Pinoy. PHP [https://localbitcoins.com/accounts/profile/mangsweeney cash trade method] in metro Manilla, Philappines.
|-
| [[mercaBit.eu]] || EUR (Ukash) EUR (Hal-Cash) EUR (Neteller) || Buy bitcoins with ukash and more
|-
| [http://buyBTC.cz buyBTC.cz] ([[buyBTC.cz|info]]) || CZK (Domestic bank transfer) EUR (Bank transfer) || Buy bitcoins from the Czech Republic.
|-
| [http://bitonic.nl Bitonic.nl] || EUR (iDeal) || Buy bitcoins instantly from the Netherlands.
|-
| [http://www.dragons.tl Dragon's Tale] ([[Dragon's Tale|info]]) || Credit card (except in the U.S.) || Purchase bitcoins through this MMO casino with credit card, withdraw bitcoins (though a fee applies if withdrawn and no casino play.)
|-
| [https://buybitcoinbycreditcard.com buybitcoinbycreditcard.com] || JPY (Credit Card) || Buy bitcoins instantly with your credit card. No registration required. This site accept from the world.
|-
| [[OKPAY]] || BTC USD, EUR, GBP, RUB, CHF etc (Bank Wire Transfer) EUR (SofortBanking) USD, EUR (Liqpay) USD (CashU) USD, EUR, GBP, RUB, CHF etc (UWCFS) USD, RUB, UAH (Wallet1) RUB (Yandex Money) RUB (EasyPay) USD, EUR (CONTACT) USD, EUR (Migom) USD, EUR, CZK (Money Polo) USD, EUR (Intel Express) USD, EUR (Western Union via Exchange Partners) USD, EUR (Moneygram via Exchange Partners) USD, EUR (via Exchange Partners) || Support of 19 world currencies, 15 languages.
|-
| [http://bitplaats.nl Bitplaats.nl] || EUR (iDEAL) || Buy bitcoins instantly, pay with iDEAL. Buy bitcoin from the Netherlands.
|-
| [http://artabit.com artaBit.com] ([[artaBit|info]]) || IDR || Buy bitcoins in Indonesia.
|-
| [https://www.bitsofgold.co.il BitsOfGold.co.il] ([[Bits_of_Gold|info]]) || ILS || Buy bitcoins from Israel.
|-
| [http://www.rugatu.com rugatu.com] || EUR || Buy bitcoins with Neteller.
|-
| [http://wmeng.exchanger.ru WMeng.Exchanger.ru] || Buy bitcoins with:<ul><li>USD</li></li>EUR</li></li>RUB</li></li>UAH</li></li>Belorussian Roubles</li></li>Vietnamese Dongs</li></ul> Sell bitcoins for:<ul><li>USD</li></li>EUR</li></li>RUB</li></li>UAH</li></li>Belorussian Roubles || The exchange service of WebMoney Transfer system. WMT has a special units named WMX to operate BTC, which can be exchanged and/or withdrawn
|-
| [[WM-Center]] || USD (Western Union, MoneyGram) EUR RUR THB UAH || 24/7/365 support English, Spanish, Russian versions Fast reliable service since 2005
|-
| [https://www.bitgo.co.il/ bitgo.co.il]|| ILS || Buy/Sell bitcoins in Israel.
|-
| [http://www.belgacoin.com Belgacoin]|| EUR, USD, BGN, CHF, CZK, DKK, EEK, GBP, GIP, HRK, HUF, ISK, LTL, LVL, NOK, PLN, RON, SEK || The easiest way to buy Bitcoins in Europe. It is fast, secure and cheap. No registration required!
|-
| [https://bittiraha.fi/content/bittip%C3%B6rssi-osta-ja-myy-bitcoineja Bittiraha.fi]|| EUR (SEPA transfer) || Reliable Finland based exchange operated since 2012. 1-2 day deposits and 1-3 day withdrawals. No registration required!
|-

| [https://bitalo.com Bitalo] ([[Bitalo|info]]) || Varies (person to person) [https://localbitcoins.com/buy-bitcoins-online/sepa-eu-bank-transfer/ SEPA Bank transfer] || Purchase Bitcoins directly from another person. eWallet
|}

==Direct / Bulk Buying==

Liquidity providers for transactions of size ($10,000 or larger).

{| class="wikitable"
|-
| Service || Type || Payment Method || Notes
|-
| [https://www.bitbrothersllc.com BitBrothers LLC] || Direct purchases up to $10,000 || USD (Bank Deposit at a Chase bank OR cash orders including cashiers checks and money orders) || BTC || Best customer service in the industry and quickest transaction speeds.
|-
| [http://bitcointalk.org/index.php?topic=87094.0 BitPay] ([[BitPay|info]]) || Direct purchases, $10,000 USD and higher || USD (Bank wire, domestic or international) || BTC || Contact for other payment methods.
|-
| [https://truckcoin.com TRUCK COIN] || Directly and Easily || USD, EUR, SGD, VND and more (Bank Wire, Western Union, Paypal, face-face) || BTC || Contact for other method directly with sellers or buyers.
|}

==Other Financial Services==

{| class="wikitable"
|-
| Service || Type || Payment || Settled || Notes
|-
| [https://giftcarddrainer.com GiftCardDrainer.com] || Transfer gift card balance to Bitcoin address or conventional account. || BTC, USD || || Customers can redeem their Visa, MasterCard, American Express or Discover gift card for Bitcoins or payment into their personal bank or PayPal account. 5.7% + $0.57 fee.
|-
| [http://www.indx.ru/?lang=en-US INDX] || Stock market, where BTC are also traded || - || - || Trader`s account can be withdrawn with BTC or with USD via WebMoney.
|-
| [[MPEx]] || Buy / Sell / Exercise CALLs / PUTs, American style. 52 strikes offered (by .5), current month + 2. No shorting available yet.|| BTC || BTC || Transactions encoded via amt. Must use non-rounding client (0.3.24 or later)
|-
| [https://vircurex.com/ Vircurex] || Buy / Sell Options Loan / Borrow || BTC, NMC, LTC, DVC, GG, I0C, IXC, SC || BTC, NMC, LTC, DVC, GG, I0C, IXC, SC ||
|}

==Physical Bitcoins==

Physical Bitcoins are bearer tokens that have an embedded redeemable digital bitcoin value if torn open. While they are somewhat expensive if bought purely for the digital bitcoins, they are relatively easy to get, because they can be purchased with PayPal or credit card - payment methods typically not accepted for pure digital bitcoin purchases.

{| class="wikitable"
|-
| Service || Type || Payment || Notes
|-
| [https://www.casascius.com Casascius.com] || Casascius Physical Bitcoins || BTC ||
|-
| [https://btcstore.eu BTCstore.eu]|| BTC Store Paperwallets, Casascius and Recalescence Physical Bitcoins reseller || BTC, EUR (SEPA bank transfer), Finnish online banks ||
|}

==Exchange Directories==
* [http://bitcoinx.io/ BitcoinX.io] Peer-to-Peer Bitcoin Reviews
* [http://howtobuybitcoins.info/ HowToBuyBitcoins.info]
* [http://wheretobuycryptocoins.com WhereToBuyCryptocoins.com]. Shows exchanges, markets, faucets, sites to spend cryptocoins and more.

==Bitcoin ATM==
As of June 2014 there are around 100 bitcoin ATM machines installed in the world. See [http://coinee.net/bitcoin-atm-manufacturers Coinee] for the list of locations.

==See Also==
* [[:Category:Digital_currencies|Digital Currencies]]
* [[Selling bitcoins]]
* [[Secure Trading]]
* [[Bitcoin Ladder]]
* [[:Category:Local|Local]] exchanges

[[Category:Exchanges]]
[[Category:Introduction]]
[[zh-cn:购买bitcoins]]
[[ru:Приобретение биткойнов]]

Buying bitcoins

2014-07-02T18:38:12Z

BitcoinX:

There are various methods available for '''buying bitcoins'''. If you are located in the USA, [http://coinbase.com/ Coinbase] is your best option. See [[Buying Bitcoins (the noob version)|here for a Newb-friendly version]] of this page.

'''NOTE:''' For taking advantage of Bitcoin volatility you are able to trade CFDs through [http://www.avatrade.com/lp/trade-bitcoin?tag=39206&tag2 AvaTrade] or [http://www.plus500.com/Instruments/BTCUSD?id=73407&pl=2 Plus500]. When trading online your capital may be at risk. Trading CFDs is suitable for more experienced traders.

{{Counterparty-warning}}

==Market Exchanges==

Market exchanges are those in which buy orders are matched with sell orders, so the price offered depends on the market. If a service quotes a price then it is not operating a [http://bitcoincharts.com/markets market] but instead is a broker that buys and/or sells coins. Those exchanges are found in the list of [[Buying bitcoins#Fixed_Rate_Exchanges_.26_Others|fixed-rate exchanges]].

Exchanges are listed in alphabetical order.

{| class="wikitable"
|-
| Exchange || Adding Funds || Withdrawing Funds || Notes
|-
| [[File:Minilogo.png|35px|link=https://www.1bse.com]] [https://1bse.com 1Bse] ([[1Bse|info]])|| BTC LTC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (Payeer.com including Yandex.money, Perfect Money, QIWI) USD (Local Bank Transfer) EUR (International Bank Wire) EUR (Local Bank Transfer) EUR (Payeer.com including Yandex.money, Perfect Money, QIWI) SGD (International Bank Wire) SGD (Local Bank Transfer) CNY (Local Bank Transfer) CNY (International Bank Wire) || BTC LTC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (Payeer.com including Yandex.money, Perfect Money, QIWI) USD (Local Bank Transfer) EUR (International Bank Wire) EUR (Local Bank Transfer) EUR (Payeer.com including Yandex.money, Perfect Money, QIWI) SGD (International Bank Wire) SGD (Local Bank Transfer) CNY (Local Bank Transfer) CNY (International Bank Wire) ||<ul><li>Two-Factor Authentication</li><li>Protection from session steal</li><li>24/7 trading monitoring</li><li>No Fees for transfer funds between 1Bse users</li><li>Fees for transaction - 0.15%</li><li>Based in Hong Kong</li><li>Language: English</li></ul>
|-
| [[File:ANXIcon.png|20px|link=https://anxbtc.com]] [https://anxbtc.com ANXBTC]([https://en.bitcoin.it/wiki/Asia_Nexgen_Bitcoin_Exchange info)] || BTC HKD (International Bank Wire) HKD (Local Bank Transfer) HKD (In Store Cash Deposit) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || BTC HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || <ul> <li>Trading Fees as low as 0.05%</li><li>Zero Bank Transfer Deposit Fees</li><li> Daily processing of withdrawals and deposits Mon-Fri<li>All 10 fiat currency orders are maintained within a single order book</li><li> Registered and based in Hong Kong</li><li> An approved Money Services Operator (MSO) with a license issued by the Hong Kong Customs and Excise Department</li><li>Gox compatible trading API Available</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li><li>Accepts cash deposits at the world's first Bitcoin retail store</li><li>Native wallet apps for both [https://play.google.com/store/apps/details?id=com.anxbtc.android Android] and [https://itunes.apple.com/us/app/anx-vault-your-bitcoin-wallet/id855057847?ls=1&mt=8 iOS]</li></ul>
|-
| [[File:ANXIcon.png|20px|link=https://anxpro.com]] [https://anxpro.com ANXPRO]([https://en.bitcoin.it/wiki/Asia_Nexgen_Bitcoin_Exchange info)] || BTC LTC PPC NMC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) HKD (In Store Cash Deposit) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || BTC LTC PPC NMC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || <ul> <li>Trading Fees as low as 0.05%</li><li>Zero Bank Transfer Deposit Fees</li><li>The only crypto-currency exchange in the world that facilitates Altcoin trading in ALL major currencies</li><li> Daily processing of withdrawals and deposits Mon-Fri<li>All 10 fiat currency orders are maintained within a single order book</li><li> Registered and based in Hong Kong</li><li> An approved Money Services Operator (MSO) with a license issued by the Hong Kong Customs and Excise Department</li><li>Gox compatible trading API Available, inc. support for Altcoins</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li><li>Accepts cash deposits at the world's first Bitcoin retail store</li><li>Advanced trading interface including support for keyboard hotkeys (i.e. 'B' for Buy, 'L' for Limit, 'Enter' to execute, etc)</li><li>Native wallet apps for both [https://play.google.com/store/apps/details?id=com.anxbtc.android Android] and [https://itunes.apple.com/us/app/anx-vault-your-bitcoin-wallet/id855057847?ls=1&mt=8 iOS]</li></ul>
|-
| [[File:BitQuickco.png|20px|link=https://www.bitquick.co]] [https://www.bitquick.co BitQuick.co]([https://en.bitcoin.it/wiki/BitQuick.co info)] || BTC Cash Deposit SEPA Transfer (International) || BTC|| Connects buyers to sellers around the globe via bank cash deposit or SEPA transfer. No registration required. Instant deposit to any bitcoin address after cash deposit or SEPA transfer receipt received.
|-
| [https://www.bitsource.org BitSource.org]([https://en.bitcoin.it/wiki/BitSource info)] || BTC LTC PPC Visa Mastercard Cash Deposit SEPA Transfer (International) OKPay Payeer EgoPay SWIFT Transfers/Bank wire PerfectMoney MoneyPak || BTC LTC PPC Bank Wire|| BitSource.org is a crypto-currency exchange platform focused on simplifying the purchase and sale of Bitcoin, Litecoin, and other crypto-currencies. The company holds up to 98% of customer funds in cold wallets and offline in bank vaults to prevent theft or loss.
|-
| [[Bitcoin Central]] || BTC EUR (SEPA bank transfer) International wire transfer || BTC EUR (SEPA bank transfer) International wire transfer ||
|-
| [[bitNZ]] || BTC NZD (Cash depost as Westbank) || BTC NZD (Domestic bank transfer) ||
|-
| [https://www.bitfinex.com/ Bitfinex] || BTC USD (Intl wire)|| BTC USD (Intl wire) ||
|-
| [[Bitstamp]] || BTC EUR (SEPA transfer) USD (Intl wire) USD ([[Ripple]]) CHF || BTC BTC (Redeemable code) EUR (SEPA transfer) USD (Intl wire) USD (Ripple) CHF || EUR and CHF deposits converted to/from USD for trading
|-
| [https://bitcoin-24.com Bitcoin-24] || BTC EUR (SEPA transfer) EUR (Credit Card) EUR (SOFORT Überweisung || BTC EUR (SEPA transfer) || SOFORT Überweisung and Credit Card deposits are instant
|-
| [https://BTCMarkets.net BTCMarkets.net] || BTC LTC AUD (Local Bank Transfer) AUD (Westpac Branch Cash Deposit) || BTC LTC AUD (Local Bank Transfer) || <ul><li>Australia's only locally based full service Bitcoin and Litecoin exchange.</li><li>Branch cash deposits (1-3 hours to clear)</li><li>Fast domestic bank transfers (1-2 business days to clear)</li><li>No deposit or withdrawal fees</li><li>No international bank or currency conversion fees</li><li>Australian owned and operated company with local support</li><li>Trading fees from as low as 0.6%.</li><li>[https://BTCMarkets.net BTCMarkets.net]</li></ul>
|-
| [http://BTCTurk.com BTCTurk.com] || BTC TL (Bank transfer) || BTC TL (Bank transfer) || <ul><li> The first Bitcoin exchange to allow trades in Turkish Lira.</li><li> Available in Turkish language. </li></ul>
|-
| [[BTC-E]] || BTC BTC (BTC-e redeemable code) USD (Cash deposit at Post of Russia) USD (Cash deposit at banks including Privatbank, Savings Bank of Russia (Sberbank), RU/UA Terminals, & more) USD (Interkassa) USD (WebMoney - WMZ) USD (Yandex) USD (LiqPay) USD (Perfect Money) USD (QIWI) USD (OKPay) USD (RBK Money) USD (Ditial currencies including НСМЭП (NSMEP), Единый Кошелек (Unified Purse), TeleMoney, & more) USD (International bank wire) EUR (SEPA bank transfer) RUB (QIWI) RUB (LiqPay) RUB (WebMoney-WMR) RUB (BTC-e Redeemable code) RUB (Bank transfer) || BTC BTC (BTC-e redeemble code) USD (Webmoney - WMZ) USD (Perfect Money) USD (LiqPay) USD (QIWI) USD (PayPal) USD (OKPay) USD (Payza/AlertPay) USD (Privat, Privat UAH) USD (Cash deposit into Savings Bank/Sberbank, Telebank, Alfa Bank) USD (BTC-e Redeemable Code) USD (International Wire Transfer) EUR (SEPA bank transfer) RUB (Cash delivery, possible in Moscow) RUB (QIWI) RUB (LiqPay) RUB (WebMoney WMR) RUB (Яндекс.Деньги Yandex) RUB (RBK Money) Cash deposit (into account at Сбербанка России!/Savings Bank/Sberbank, Телебанк (Telebank), and АльфаБанк (Alfa Bank) RUB (Transfer to credit card VISA & MasterCard) RUB (BTC-e Redeemable code) RUB (Bank transfer) || Language: English, Russian. Interkassa can be funded from Webmoney and many other methods. BitInstant Can be funding option includes QIWI, Cyberplat.
|-
| [https://CampBX.com/ CampBX] (CBX) || BTC USD ([[Dwolla]]) USD (P2P bank transfer at Chase, B of A, Wells Fargo and ING. Credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || BTC USD ([[Dwolla]]) USD (ACH Direct Deposit) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li> Security certification from McAfee</li><li> Advanced trading options with AON/FOK/Market</li> <li>STOPLOSS and Short-Selling in Pipeline</li><li> Trading API available</li><li> Wallet API available </li><li> CBX Instant Bitcoin Transfers Feature </li><li> Stoploss / Custom Order Expiry Date/Time </li><li> SMS (Text Message) Notifications </li> <li> Two-Factor Authentication </li> <li> Based in USA - Atlanta </li> </ul>
|-
| [[CoinMKT]] || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (P2P bank transfer at any US bank, credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li>Trade any currency pair</li><li>Fast, web-based ID verification</li><li>Focused on user experience</li><li>Play money trading</li> <li> Based in Santa Monica, CA </li> </ul>
|-
| [[File:e-cointrade.com logo.png|link=https://www.e-cointrade.com/cointrade/content.jsp?language=English&ref=en.bitcoin.it&id=Home]] [https://www.e-cointrade.com/cointrade/content.jsp?language=English&ref=en.bitcoin.it&id=Home e-CoinTrade.com] ([[e-cointrade.com|info]]) || | Deposits: BTC | LTC | FTC | IXC | NVC | MNC | TRC | PPC USD ([[Perfect Money]]) EUR ([[Perfect Money]]) || | Withdrawals: BTC | LTC | FTC | IXC | NVC | MNC | TRC | PPC USD ([[Perfect Money]]) EUR ([[Perfect Money]]) || <ul><li> Focused in '''symplicity''' for the average user.</li><li> Full multilanguage, available in: English, Deutche, Español, Pусский, Français. </li> <li> Automatic trading platform.</li><li> Trade in any combination of the currency pairs.</li><li> Live ''chatbox'' for users.</li></ul>
|-
| [[FYB-SG]] || BTC SGD(Internet Bank Transfer) SGD (Annonymous Cash Deposit at any UOB Cash Deposit Machine in Singapore). || BTC SGD(Internet Bank Transfer) || Based in Singapore
|-
| [[FYB-SE]] || BTC SEK(Internet Bank Transfer) || BTC SEK(Internet Bank Transfer) || Based in Sweden
|-
| [[File:Hit_20.png|20px|link=https://www.hitbtc.com]][[HITBTC]] || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || <ul> <li>Cutting-edge technology places and matches order in milliseconds</li><li>Two-factor Authentication</li><li>WebSocket subscription for prices and trades</li><li>Asynchronous WebSocket-based trading interface</li><li>FOK and IOC orders</li><li>API</li>
|-
| [https://www.itbit.com itBit] || BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire)|| BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire) || Based in Singapore
|-
| [http://ice3x.co.za iceCUBED] || BTC LTC ZAR (Local and International Bank Transfer) || BTC LTC ZAR (Local and International Bank Transfer) || <ul><li>South Africa's only locally based full-service Bitcoin and Litecoin exchange</li><li>Fast domestic bank transfers (1-2 business days to clear)</li><li>No deposit or withdrawal fees</li><li>No international bank or currency conversion fees</li><li>South African owned and operated company with local support</li><li>Trading fees from as low as 0.6%.</li><li>[http://ice3x.co.za iceCUBED]</li></ul>
|-
| [[Justcoin]] || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || <ul> <li>Based in Oslo, Norway</li><li>Two-factor Authentication</li><li>API</li>
|-
| [[Kapiton.se]] || BTC SEK (Bankgiro Bank Transfer) || BTC SEK (Bankgiro Bank Transfer) ||
|-
| [[Kraken]] || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) USD (ACH) || <ul> <li>Legally compliant</li><li>Advanced Stop Orders</li><li>Margin Trading</li><li>Based in San Francisco, CA</li><li>Two-factor Authentication</li><li>API</li>
|-
| [[File:MMB.png|20px|link=https://www.mengmengbi.cn]] [https://www.mengmengbi.cn Mengmengbi (萌萌币)]([https://en.bitcoin.it/wiki/Mengmengbi info)] || BTC LTC PPC NMC DOGE CNY(Local Bank Transfer) || BTC LTC PPC NMC DOGE CNY(Local Bank Transfer) || <ul> <li>Powered by [https://www.anxpro.com ANX] </li><li>Zero Trading Fees</li><li> Instant processing of CNY deposits</li><li> Near realtime processing of CNY withdraways (Mon-Fri)</li><li>Gox compatible Trading API with BTC, DOGE, LTC, PPC, NMC support</li><li>Zero bank transfer fees</li><li>Shared liquidity with ANX, one of the top 10 Bitcoin exchanges in the world</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li></ul>
|-
| [[Rock Currency Exchange]] || BTC EUR (SEPA transfer) SLL (Second Life) USD (Dwolla) || BTC EUR (SEPA transfer) SLL (Second Life) USD (Dwolla) ||
|-
| [[VirtEx]] || BTC CAD (cash deposit at Bank of Montreal or ScotiaBank) CAD (Online bill payment) CAD (Wire transfer) || BTC CAD (direct deposit) CAD (Canada Xpress Post Bank Draft send by mail) CAD Payza (formerly AlertPay) ||
|-
| [https://www.virwox.com/ VirWox] || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP (Credit & Debit cards via [[Skrill]]/Moneybookers) USD,EUR,GBP ([http://www.neteller.com NETELLER]) EUR (DIRECTebanking / Sofortuberweisung) USD,EUR,GBP,CHF ([http://www.paysafecard.com PaySafe Card]) EUR (SEPA bank transfer) USD ([[UKash]] vouchers) || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP ([[Skrill]]/Moneybookers) USD,EUR,GBP ([http://www.neteller.com NETELLER]) EUR (SEPA bank transfer) || Trading through Second Life Linden Dollars. Variable limits on PayPal and Credit Card deposits.
|-
| [https://www.bitcointoyou.com BitcoinToYou] || BTC BRL USD EUR || BTC BRL USD EUR || Language: Portuguese (português), customer can buy in cash ou bank deposit at HSBC, SANTANDER, ITAÚ, CAIXA, BRADESCO and BANCO DO BRASIL.
|-
| [[MORREX]] || BTC CAD CAD (Online bill payment) CAD (Wire transfer) || BTC CAD CAD (Canada Xpress Post Bank Draft send by mail) CAD ||
|}

==Fixed Rate Exchanges & Others==
For smaller amounts, the options are limited due to bank transfer fees, conversion fees and transaction size restrictions. Options include:

{| class="wikitable"
|-
| Service || Payment Method || Notes
|-
| [https://www.alfacashier.com ALFAcashier] || BTC Bitcoin LTC Litecoin USD PerfectMoney USD LiqPay USD OKPay USD EgoPay USD BTC-E coupon/refill USD (International Bank Wire) EUR (International Bank Wire) RUB (Russian Bank Wire) || Instant exchanger. Language: English, German, Russian, Chinese <ul><li>Cumulative discount system</li><li>Affiliate program</li><li>Fees only 1-3%</li></li>
|-
| [https://www.bestexchangeonline.com Bestexchangeonline.com] || USD PerfectMoney EUR PerfectMoney Cashu Egopay Okpay Bitcoin Webmoney PayPal USD LiqPay RUB || Buy Sell Exchange Bitcoins with the best price. <ul><li>Instant Exchange</li><li>24/7/365 support</li>
|-
| [[File:BitSimpleIcon.png|30px|link=https://BitSimple.com]] [https://BitSimple.com BitSimple.] ([[BitSimple.|info]]) || USD (bank wire) || Don't get goxxed again! We never hold user's bitcoins. Purchased bitcoins will be directly transferred to your personal bitcoin wallet. Stop accepting long delays waiting for funding. We will lock in a rate once you confirm the wire has been sent, and will deliver your purchased coins the same day, usually within an hour.
|-
| [[File:BittyBot-head.png|20px|link=http://BittyBot.co.uk]] [http://BittyBot.co.uk BittyBot] ([[BittyBot|info]]) || GBP (varies person to person) || BittyBot monitors and compares the UK Bitcoin market to help you find the best prices and most reputable traders.
|-
| [https://quickbitcoin.co.uk Quickbitcoin.co.uk] ([[Quickbitcoin|info]]) || GBP (bank transfer) || Buy bitcoins in the UK in under 1 hour from trusted uk seller. Payments by UK bank transfer. No sign up required. [http://www.trustpilot.co.uk/review/quickbitcoin.co.uk See reviews here].
|-
| [https://24change.com 24Change.com] ([[24change.com|info]]) ||
* USD, UAH, RUB, Visa, MasterCard
* C-Coin, eCoin, EgoPay, Payza, Payoneer, EPESE, MoneyGram, OKPAY, WireTransfer, QIWI, Yandex Money, BTC-E code, PayPal, PerfectMoney, Paymer, ePayments, LiqPay, Redpass, WESTERN UNION, C-Gold, Pecunix
* International Banks, Sberbank, Alfa-Bank, Privat24, Svyaznoy Bank, VTB24
||
* Automatic bitcoin and e-currencies buy/sell service
* 24/7/365 fast and reliable e-currencies exchange
* Unlimited reserves
* 15% Affiliate program
|-
|[[File:favicon_b4c.jpg|20px|link=https://bit4coin.net]] [https://bit4coin.net bit4coin.net] ([[bit4coin|info]]) || [https://www.sofort.com SOFORT banking] SEPA transfer (EUR) International bank transfer || Buy bitcoin with gift vouchers: Order bit4coin gift vouchers online at [https://bit4coin.net bit4coin.net] and get them shipped to your door, ready to redeem into bitcoins. No registration required. Perfect for own use or as gift.
|-
| [[File:BitQuickco.png|20px|link=https://www.bitquick.co]] [https://www.bitquick.co BitQuick.co] ([https://en.bitcoin.it/wiki/BitQuick.co info)] || Cash Deposit or SEPA Transfer Only (International) || Connects buyers to sellers around the globe via bank cash deposit or SEPA transfer. No registration required. Instant deposit to any bitcoin address after cash deposit or SEPA transfer receipt received.
|-
| [https://www.cryptxchange.com Cryptxchange] || USD (Cash Deposit) USD (Wire Transfer) CAD (Cash Deposit) CAD (Wire Transfer) You may make cash deposits at any Chase Bank Internationally (ARS, GBP, EUR, AUD, BRL, CLP, COP, EGP, KYD, SAR, CNY, AED, JPY, INR || A multinational US based cryptographic currency exchange. No login or account creation required. No identity verification required. Exquisite customer service. Average transaction time under two hours depending on the time of the day. One of the most anonymous and reliable exchanges on the net. We use SSL & AES-256 military grade encryption for all communication
|-
| [https://www.getbitcoin.com.au Bitcoin (Australia)] || AUD (Bank Deposit) || Bitcoin (Australia) / [https://www.getbitcoin.com.au www.getbitcoin.com.au] offers rapid transfer at low rates.
|-
| [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS] ([[BIPS|info]]) || CAD (Cash deposits in Canada Any Currency (Wire Transfer - Any Country) USD || <ul><li>DK-based</li><li>[https://github.com/BitcoinInternetPaymentSystem BIPS GitHub]</li><li>[https://bips.me/connect/BitcoinInternetPaymentSystemAPI.pdf REST API]</li></ul>
|-
| [http://indo-bitcoin.com Indo-Bitcoin.com] || IDR Mandiri (Cash deposit and wire transfer) IDR BNI (Cash deposit and wire transfer) IDR BCA (Cash deposit and wire transfer) IDR BRI (Cash deposit and wire transfer) || Beli Bitcoin di Indonesia. Lowest fees, max. 30 minutes per transfer, 24 hours 7 days. No verification required.
|-
| [https://Bitcash.cz/market Bitcash.cz] ([[Bitcash.cz|info]]) || CZK domestic wire, EUR with SEPA || Live Auction Rates, person-to-person contract fulfillment
|-
| [https://www.bitbrothersllc.com BitBrothers LLC] || Bank Transfer/Cash/Moneygram || If you are looking for an extremelly simple and anonymous way to purchase bitcoins, this is the best place to do it. We are so sure you will be a repeat customer that we are willing to provide discounts for first time buyers. Best Customer service in the industry.
|-
| [https://truckcoin.com TRUCK COIN] || Bank Transfer/Paypal/Wester Union/Moneygram/Cash/any method with any currency || There is another anonymous way to purchase bitcoins, this is the best safety and anonymous way.
|-
| [https://bitcointalk.org/index.php?topic=237164.0 Bitcoin-Brokers (USA)] || Cash deposit || At major banks like Bank of America, Chase, Wells Fargo, PNC, Citibank. No ID, No registration. Immediate fundings.
|-
| [https://bitcoini.com Bitcoini.com (Bulgaria, Romania)] || BGN (Bank deposit, Cash, EasyPay, Post, Econt) RON (Bank deposit) USD (Western Union, MoneyGram) || Fast and secure way to buy/sell bitcoins. Live support
|-
| [http://www.bitcoinbymobile.com BitcoinByMobile.com] || Mobile Phone (Premium SMS)|| Buy bitcoins instantly using just your mobile phone. No registration or personal financial information needed. Available in: Austria, France, Germany, Luxembourg, Netherlands, Portugal, Spain, and United Kingdom
|-
| [http://www.btc-dealer.com BTC-Dealer] || Credit Card through Liqpay || No signup required. Instant deposit to any bitcoin address
|-
| [https://moneypaktrader.com MoneypakTrader.com] ([[MoneypakTrader.com|info]]) || Moneypak (USD) <======> BTC BTC <======> Moneypak (USD) ReLoadit, etc. (USD) <====> BTC BTC <======> ReLoadit, etc. (USD) || Pays a bonus over market for your BTC Charges a fee over market for your Moneypak, etc. Only accepts codes from original purchaser Attempts to have regular customers processed within 24 hrs Available for discussion via TorChat
|-
| [https://bitbargain.co.uk BitBargain] ([[BitBargain|info]]) || GBP || Quick transactions via Bank Transfer (fast payments support only), Pingit and Ukash. Deals happen between buyer and seller.
|-
| [https://bittylicious.com Bittylicious] ([[Bittylicious|info]]) || GBP, EUR, ZAR || Near instant transactions via UK Bank Transfer (Faster Payments only). No sign up required but can buy more if registered.
|-
| [http://btc.pt BTC.pt] || EUR (Multibanco) || Anonymous transactions. Pay the amount on any Portuguese ATM(MB) or homebanking service, we'll deduce our fee and buy the coins for you at market rate and send them very fast to your wallet. Only available in Portugal.
|-
| [https://www.bitcointrader.com.au Bitcointrader] ([[Bitcointrader|info]]) || AUD (Cash deposit) || Lowest fee in Australia! Only 5%. Buy and sell bitcoins quickly and easily! Cash deposit at any Westpac Bank and National Australia Bank branch in Australia.
|-
| [https://blockchain.info/wallet/deposit-methods Blockchain] ([[BlockChain.info|info]]) || USD, GBP, EUR, BRL, AUD, CAD, JPY, EUR, CHF, PLN, CZK, RON, RUB, SEK, NOK, DKK || Purchased through [[BitInstant]] (U.S., Brazil, and Russia), Barclay's Pingit or Bank Transfer (GBP), Instant Bank Transfer (EUR) or SMS or premium phone call from a mobile.
|-
| [[BitInstant]] || USD (Cash deposit at banks, 7-11, Walmart, CVS, Moneygram locations) USD (Dwolla) BRL (Cash deposit at Banco Rendimento or through Boleto) RUB (Cash deposit through Qiwi or Cyberplat) || Deposit cash at 700,000 locations around the world and have your Bitcoins within 30 minutes. Absolute fastest and easiest way to buy Bitcoins.
|-
| [[Coinapult]] || Use [[BitInstant]] to use cash to purchase bitcoins sent to e-mail or SMS. Choose "Bitcoin to e-mail" service and enter either e-mail or SMS. ||
|-
| [https://www.ripio.com/ Ripio] || Buy bitcoin in Argentina using cash payment networks like PagoFacil, RapiPago, etc. || A good option for bitcoin beginners transactions take usually less than 24 hours and places for doing the payments are all over.
|-
| [http://coinbase.com/?r=514b6eb6a18f2fdde50000db&utm_campaign=user-referral&src=referral-link Coinbase] || Buy and sell bitcoin by connecting a U.S. based bank account. Users need the account and routing numbers that can be found on a check to get started. || Instant verification available for new accounts. Purchased bitcoin can be held in Coinbase's online wallet. Generally considered a good option for U.S. based bitcoin beginners.
|-
| [[Coin-Daddy]] || Buy bitcoins with PayPal and OKPAY || No verification needed. Customer just needs to pay with PayPal, leave the Wallet address and then he receives his coins, or pays via OKPAY. Available for purchase are: Bitcoins, Litecoins and PPCoins.
|-
| [http://BitcoinIsrael.co.il BitcoinIsrael.co.il] || ILS (NIS - New Israeli Shekel)
* via bank transfer
* via Bank HaDoar /Post Office Bank (instant transfer)
* via In Person
|| Buy and sell your Bitcoins within minutes in person. Get "same day" service using Bank HaDoar /Post Office Bank. Get "next day" service using Bank Transfer.
|-
| [[Bitcoin Nordic]] ||
*EUR/DKK (SEPA and wire transfer)
*USD, EUR, GBP, DKK, SEK, NOK (Cash or check in the mail)
*AED, DZD, EGP, IQD, ILS, JOD, KWD, LGP, LYD, MRO, MYR, NGN, OMR, PKR, QAR, SAR, TRL, TZS, TND, YER ([[CashU]] card)
*MXN, EYU, BOB, BRL, COP, SYP, MAD, GHC, ZAR, CNY, CAD, and more ([[UKash]] voucher)
|| For UKash, redeemed through CashU account.
|-
| [[Spend Bitcoins]] || AUD (Cash deposit) || AUD cash deposit at NAB, Commonwealth Bank, Westpac and ANZ.
|-
| [https://bitcoinmylife.com/jml/buy-bitcoins BitcoinMyLife] ([[BitcoinMyLife|info]]) || EUR (SEPA bank transfer) || Simple and Safe. Pay first transaction fee with Twitter or Facebook post.
|-
| [[bitcoin.de]] || EUR (bank wire) EUR (SEPA bank transfer) EUR ([[Skrill]]/Moneybookers) || Varies (person to person) 0.01 free Bitcoins for every new user eWallet Affiliate program Language: German, Englisch News
|-
| [https://www.BitcoinZAP.com BitcoinZAP] || SEPA bank transfer - EUR International bank transfer - EUR, USD Western Union MoneyGram Cash (in the mail) - EUR, USD, CAD, GBP, HKD, JPY, PLN, AUD, CHF, CZK, DKK, HUF, MOP, SEK, NOK || Bitcoins usually delivered in less than 24 hours after payment is received
|-
| [[BTCX.se]] || SEK || Transfer to and banks in Sweden.
|-
| [[BTC China]] || || Converted to CNY for trading.
|-
| [[bitcoincambodia.com]] || USD (Cash, possible to pay everywhere in Cambodia) || You can buy Bitcoins for USD in Cambodia.
|-
| [[BitMarket.co]] || COP (Colombian Peso) || Varies (person to person)
|-
| [[bitcoin-otc|#bitcoin-otc]] || Person-to-person, various methods || IRC trading marketplace will usually have people willing to deal for small and larger amounts using various payment methods, including [[PayPal]], [[Dwolla]], [[Linden Dollars]], etc.
|-
| [[Canadian Bitcoins]] || CAD (Cash - XpressPost or Dropoff) USD (Cash - Courier: UPS, FedEx, etc.) || For dropoff, office in Ottawa.
|-
| [http://coinrepublic.com/buy-sell-bitcoins-singapore/ Coin Republic] || SGD (Singapore Dollar)|| Payment via local bank transfer.
|-
| [https://dgtmkt.com Dgtmkt] ([[Dgtmkt|info]]) || Malaysian Ringgit (MYR) Online bank transfers (Maybank2U, CIMB, MEPS, etc) E-vouchers (Web Cash, Mobile Money) || Bitcoin merchant for Malaysians,. dealing in Malaysian Ringgit. Fully automated immediate transfers. https://dgtmkt.com
|-
| [https://www.dagensia.eu Dagensia] ([[Dagensia|info]]) ||
* SEPA Bank Transfer (EUR)
* ATM card (EUR, USD)
* Sofort Banking (EUR)
* Direct Banking (EUR)
* Payza (official Exchanger)
* EgoPay, c-gold
* BUY AND SELL BITCOINS
|| Dagensia allows you to Buy and Sell Bitcoins and to store Bitcoins securely. You can get your first Bitcoin today, or you can start accepting Bitcoins directly into EUR or USD balance and ATM card. Sell and buy your Bitcoins through Wire, or SEPA EUR transfer, Direct Banking, ATM Cards. '''Fully licensed exchanger''', supervised by Czech National Bank
|-
| [[Lilion Transfer]] || Bank Transfer: USD, AUD, CAD, JPY, EUR, CHF, GBP, PLN, CZK, RON, BGN, HRK, RUB, SEK, NOK, DKK, LTL, LVL Perfect Money Monetto OK Pay Cosmic Pay Pecunix C-Gold E-Pay Payments PayPal|| 122 accounts worldwide. Support in 30 languages
|-
| [[Nanaimo Gold]] || Western Union money transfer Moneygram money transfer Cash in the mail || Digital Currency <--> Bitcoin exchange is automated For cash in the mail send USD, EUR, CAD, or GBP. Canada mailing address.
|-
| [[Bitcoin Argentina]] || Cash: ARS, BRL, USD Bank transfer: ARS || No exchange fees!
|-
| [[Bitcoin.com.es]] || EUR (bank deposit) || Bank transfer or cash deposits at OpenBank in Spain.
|-
| [[Bahtcoin]] || Cash, Webmoney || Will cash out to Thai mobile and gaming prepaid cards as well.
|-
| [http://bitcoin.in.th Bitcoin Thailand] || THB: Cash/Bank Deposit || Same day service.
|-
| [[BitPiggy]] || AUD (Australian Dollar)|| Payment via bank transfer.
|-
| [[bitcoin.local]] || Person-to-person, various methods ||
|-
| [[bcchanger.com]] || Person-to-person via PayPal, [[Skrill]]/Moneybookers and other e-currency platforms ||
|-
| [[Bitcoil]] || ILS (bank transfer) ||
|-
| [[File:BXlogoSM.jpeg|link=http://bitXoin.com]] [http://bitXoin.com bitXoin] ([[bitXoin|info]]) || AUD (Cash deposits) || Fast transaction processing, market rates with low commissions and no fees.
Contact BUYbulk@bitXoin.com for special rates on BUY BTC transactions over $10,000 and SELLbulk@bitXoin.com for SELL BTC transactions over BTC50
https://bitXoin.com/
|-
|[[btcnow]] || USD (OKPay, Dwolla) || bitcoins transferred instantly
|-
| [http://localbitcoins.com LocalBitcoins.com] || Varies (person to person) Physical cash locally [https://localbitcoins.com/buy-bitcoins-online/cash-deposit/ Cash deposit] [https://localbitcoins.com/buy-bitcoins-online/okpay/ OKPay] [https://localbitcoins.com/buy-bitcoins-online/paypal/ PayPal] [https://localbitcoins.com/buy-bitcoins-online/dwolla/ Dwolla] [https://localbitcoins.com/buy-bitcoins-online/sepa-eu-bank-transfer/ SEPA Bank transfer] || Find your local bitcoin dealer, or purchase safely online using escrow! With dynamic pricing with equations. eWallet 
[https://localbitcoins.com/affiliate/ Affiliate program] 
[https://localbitcoins.com/api-docs/ API]
|-
| [https://www.bitbuy.nl BitBuy] || EUR (iDEAL) || Buy bitcoins instantly with iDEAL from the Netherlands. User will get price updates during the payment process.
|-
| [https://www.happycoins.com HappyCoins] || EUR (iDEAL and SEPA bank transfer) || Buy and sell Bitcoins. Use the Dutch iDEAL payment system to receive Bitcoins within minutes. Prices are based on near real-time exchange prices.
|-
| [[ECurrencyZone]] || BTC INR (Cash deposit of Indian rupee) BDT (Cash deposit of Bangladeshi taka) NPR (Cash deposit of Nepalese rupee) MYR (Cash deposit of Malaysian ringitt) SGD (Cash deposit of Singaporean dollar) SGD (Net/Bank transfer) USD (Western Union, Moneygram, Citibank global funds transfer, OKPay) USD || Bank transfer considered at all locations with prior approval.
|-
| [[BitCoinVend]] || BTC USD (PayPal) || bitcoinvend@gmail.com, market variable with commission, quote based, verified paypal account with anti scammer verification
|-
| [[Bitcoins In Berlin]] || EUR (Cash in-the mail) EUR (Cash in-person trade) EUR (SEPA bank transfer) EUR (Western Union) || Cash in-the-mail is to a Berlin P.O. box. In-person trade is in Berlin.
|-
| [https://www.lojabitcoin.pt Loja Bitcoin] || EUR (ATM/Multibanco) EUR (bank transfer) EUR (money order) EUR (cash) || Several payment methods like the Portuguese "Multibanco" (ATM), "Vale postal CTT" (money order by mail), bank transfer and cash (in some locations) - Portugal only at the moment
|-
| [[Mang Sweeney]] || PHP (Cash) PHP (Cash deposit at bank) || Languages: English, Pinoy. PHP [https://localbitcoins.com/accounts/profile/mangsweeney cash trade method] in metro Manilla, Philappines.
|-
| [[mercaBit.eu]] || EUR (Ukash) EUR (Hal-Cash) EUR (Neteller) || Buy bitcoins with ukash and more
|-
| [http://buyBTC.cz buyBTC.cz] ([[buyBTC.cz|info]]) || CZK (Domestic bank transfer) EUR (Bank transfer) || Buy bitcoins from the Czech Republic.
|-
| [http://bitonic.nl Bitonic.nl] || EUR (iDeal) || Buy bitcoins instantly from the Netherlands.
|-
| [http://www.dragons.tl Dragon's Tale] ([[Dragon's Tale|info]]) || Credit card (except in the U.S.) || Purchase bitcoins through this MMO casino with credit card, withdraw bitcoins (though a fee applies if withdrawn and no casino play.)
|-
| [https://buybitcoinbycreditcard.com buybitcoinbycreditcard.com] || JPY (Credit Card) || Buy bitcoins instantly with your credit card. No registration required. This site accept from the world.
|-
| [[OKPAY]] || BTC USD, EUR, GBP, RUB, CHF etc (Bank Wire Transfer) EUR (SofortBanking) USD, EUR (Liqpay) USD (CashU) USD, EUR, GBP, RUB, CHF etc (UWCFS) USD, RUB, UAH (Wallet1) RUB (Yandex Money) RUB (EasyPay) USD, EUR (CONTACT) USD, EUR (Migom) USD, EUR, CZK (Money Polo) USD, EUR (Intel Express) USD, EUR (Western Union via Exchange Partners) USD, EUR (Moneygram via Exchange Partners) USD, EUR (via Exchange Partners) || Support of 19 world currencies, 15 languages.
|-
| [http://bitplaats.nl Bitplaats.nl] || EUR (iDEAL) || Buy bitcoins instantly, pay with iDEAL. Buy bitcoin from the Netherlands.
|-
| [http://artabit.com artaBit.com] ([[artaBit|info]]) || IDR || Buy bitcoins in Indonesia.
|-
| [https://www.bitsofgold.co.il BitsOfGold.co.il] ([[Bits_of_Gold|info]]) || ILS || Buy bitcoins from Israel.
|-
| [http://www.rugatu.com rugatu.com] || EUR || Buy bitcoins with Neteller.
|-
| [http://wmeng.exchanger.ru WMeng.Exchanger.ru] || Buy bitcoins with:<ul><li>USD</li></li>EUR</li></li>RUB</li></li>UAH</li></li>Belorussian Roubles</li></li>Vietnamese Dongs</li></ul> Sell bitcoins for:<ul><li>USD</li></li>EUR</li></li>RUB</li></li>UAH</li></li>Belorussian Roubles || The exchange service of WebMoney Transfer system. WMT has a special units named WMX to operate BTC, which can be exchanged and/or withdrawn
|-
| [[WM-Center]] || USD (Western Union, MoneyGram) EUR RUR THB UAH || 24/7/365 support English, Spanish, Russian versions Fast reliable service since 2005
|-
| [https://www.bitgo.co.il/ bitgo.co.il]|| ILS || Buy/Sell bitcoins in Israel.
|-
| [http://www.belgacoin.com Belgacoin]|| EUR, USD, BGN, CHF, CZK, DKK, EEK, GBP, GIP, HRK, HUF, ISK, LTL, LVL, NOK, PLN, RON, SEK || The easiest way to buy Bitcoins in Europe. It is fast, secure and cheap. No registration required!
|-
| [https://bittiraha.fi/content/bittip%C3%B6rssi-osta-ja-myy-bitcoineja Bittiraha.fi]|| EUR (SEPA transfer) || Reliable Finland based exchange operated since 2012. 1-2 day deposits and 1-3 day withdrawals. No registration required!
|-

| [https://bitalo.com Bitalo] ([[Bitalo|info]]) || Varies (person to person) [https://localbitcoins.com/buy-bitcoins-online/sepa-eu-bank-transfer/ SEPA Bank transfer] || Purchase Bitcoins directly from another person. eWallet
|}

==Direct / Bulk Buying==

Liquidity providers for transactions of size ($10,000 or larger).

{| class="wikitable"
|-
| Service || Type || Payment Method || Notes
|-
| [https://www.bitbrothersllc.com BitBrothers LLC] || Direct purchases up to $10,000 || USD (Bank Deposit at a Chase bank OR cash orders including cashiers checks and money orders) || BTC || Best customer service in the industry and quickest transaction speeds.
|-
| [http://bitcointalk.org/index.php?topic=87094.0 BitPay] ([[BitPay|info]]) || Direct purchases, $10,000 USD and higher || USD (Bank wire, domestic or international) || BTC || Contact for other payment methods.
|-
| [https://truckcoin.com TRUCK COIN] || Directly and Easily || USD, EUR, SGD, VND and more (Bank Wire, Western Union, Paypal, face-face) || BTC || Contact for other method directly with sellers or buyers.
|}

==Other Financial Services==

{| class="wikitable"
|-
| Service || Type || Payment || Settled || Notes
|-
| [https://giftcarddrainer.com GiftCardDrainer.com] || Transfer gift card balance to Bitcoin address or conventional account. || BTC, USD || || Customers can redeem their Visa, MasterCard, American Express or Discover gift card for Bitcoins or payment into their personal bank or PayPal account. 5.7% + $0.57 fee.
|-
| [http://www.indx.ru/?lang=en-US INDX] || Stock market, where BTC are also traded || - || - || Trader`s account can be withdrawn with BTC or with USD via WebMoney.
|-
| [[MPEx]] || Buy / Sell / Exercise CALLs / PUTs, American style. 52 strikes offered (by .5), current month + 2. No shorting available yet.|| BTC || BTC || Transactions encoded via amt. Must use non-rounding client (0.3.24 or later)
|-
| [https://vircurex.com/ Vircurex] || Buy / Sell Options Loan / Borrow || BTC, NMC, LTC, DVC, GG, I0C, IXC, SC || BTC, NMC, LTC, DVC, GG, I0C, IXC, SC ||
|}

==Physical Bitcoins==

Physical Bitcoins are bearer tokens that have an embedded redeemable digital bitcoin value if torn open. While they are somewhat expensive if bought purely for the digital bitcoins, they are relatively easy to get, because they can be purchased with PayPal or credit card - payment methods typically not accepted for pure digital bitcoin purchases.

{| class="wikitable"
|-
| Service || Type || Payment || Notes
|-
| [https://www.casascius.com Casascius.com] || Casascius Physical Bitcoins || BTC ||
|-
| [https://btcstore.eu BTCstore.eu]|| BTC Store Paperwallets, Casascius and Recalescence Physical Bitcoins reseller || BTC, EUR (SEPA bank transfer), Finnish online banks ||
|}

==Exchange Directories==
* [http://bitcoinx.io/ BitcoinX.io] Peer-to-Peer Bitcoin Reviews
* [http://howtobuybitcoins.info/ HowToBuyBitcoins.info]
* [http://wheretobuycryptocoins.com WhereToBuyCryptocoins.com]. Shows exchanges, markets, faucets, sites to spend cryptocoins and more.

==Bitcoin ATM==
As of June 2014 there are around 100 bitcoin ATM machines installed in the world. See [http://coinee.net/bitcoin-atm-manufacturers Coinee] for the list of locations.

==See Also==
* [[:Category:Digital_currencies|Digital Currencies]]
* [[Selling bitcoins]]
* [[Secure Trading]]
* [[Bitcoin Ladder]]
* [[:Category:Local|Local]] exchanges

[[Category:Exchanges]]
[[Category:Introduction]]
[[zh-cn:购买bitcoins]]
[[ru:Приобретение биткойнов]]

Wallet

2014-05-26T00:56:08Z

BitcoinX: /* See Also */

A Bitcoin '''wallet''' is a file that contains a collection of private keys.

=== Bitcoin Qt ===

The original Bitcoin [[Clients|client]] wallet file is named '''wallet.dat''' and contains<ref>[https://bitcointalk.org/index.php?topic=4448.0 Wallet import/export: bitkeys format]</ref>:

* keypairs for each of your [[address|addresses]]
* transactions done from/to your addresses
* user preferences
* default key
* reserve keys
* [[Accounts_explained|accounts]]
* a version number
* [[Key pool]]
* Since 0.3.21: information about the current best chain, to be able to rescan automatically when restoring from a backup.

The data file for the wallet is wallet.dat and is located in the [[data directory|Bitcoin data directory]].

It is intended that a wallet be used on only one installation of Bitcoin at a time. Attempting to clone a wallet for use on multiple computers will result in "weird behavior"<ref>[http://forum.bitcoin.org/index.php?topic=5324.msg77896#msg77896 Multiple instance of bitcoin with the same wallet]</ref>.

The format of this file is Berkeley DB. Tools that can manipulate wallet files include [[pywallet]].

=== Armory ===

The Armory client uses a custom [http://bitcoinarmory.com/developers/armory-wallet-files/ binary wallet format].

=== Blockchain.info ===

Blockchain.info use a plain text JSON wallet format documented [https://blockchain.info/wallet/wallet-format here]. Private keys Keys are stored in base58.

=== [[Coinkite]] ===

[[File:Coinkite.gif|20px|link=https://coinkite.com]] [https://coinkite.com/promo/wiki Coinkite] is the only web wallet using [https://en.bitcoin.it/wiki/BIP_0032 "HD Wallet (BIP32)"] technology, which can be shared partially or entirely with different systems, each with or without the ability to spend coins [https://coinkite.com/faq here]. Private keys Keys are sent to you encrypted with AES-256-CBC.

=== Multibit ===

Multibit uses the bitcoinj [http://code.google.com/p/protobuf/ protobuf] wallet file.

=== [[Coinprism]] ===

[[File:Coinprism_Favicon.png|16px|link=https://www.coinprism.com]] [https://www.coinprism.com Coinprism] is the first colored coin web wallet. Coinprism is similar to other web wallets, except you can store, issue, send and receive colored coins and not only normal Bitcoins. Note that the site is currently in invite-only beta.

=== [[Bitcoin Wallet]] ===

[[File:bitcoin_wallet.png|192px]] Bitcoin Wallet uses the bitcoinj [http://code.google.com/p/protobuf/ protobuf] format for its wallet file. However, due to Android isolation of applications, it is impossible to access the wallet file as a non-root user.

=== Email Tip Bot ===

[http://emailtipbot.com Email Tip Bot] is a wallet that works entirely through email. This makes it the only native solution to sending bitcoins on iOS devices, like the iPhone and iPad. It is secure against email spoofing, but can be compromised by anyone who has read access to your email.

==See Also==

* [[Securing your wallet]]
* [[EWallet]]
* [[Deterministic Wallet]]
* [http://bitcoinx.io/wallets Finding a Wallet]

==References==
<references />

Securing your wallet

2014-05-26T00:51:57Z

BitcoinX: /* See Also */

==Introduction==

Wallet security can be broken down into two independent goals:
# Protecting your wallet against loss.
# Protecting your wallet against theft.

In the case that your current wallet hasn't been protected adequately (e.g. put online with a weaker password):
# Making a new secure wallet, using appropriate long-term protection.

''For a brief overview see also: [[Wallet Security Dos and Don'ts|Wallet Security Dos and Don'ts]]''

==Paper Wallets==
[[Paper wallet]]s can be used to store bitcoins offline in non-digital format. Using securely generated paper wallets significantly decreases the chances of your bitcoins being stolen by hackers or computer viruses.

Fundamentally, a paper wallet is merely a physical record of a [[private key]] (most commonly written as a sequence of fifty-one alphanumeric characters beginning with a '5') and its corresponding [[public key]]. The private key is used to prove your right to spend the bitcoins transferred to the paper wallet, and as such should be kept hidden and secret. If the private key on a paper wallet is exposed (for example in a photograph) then the wallet may be "swept" by anyone who sees the key. To guard against accidental revelation, the private key displayed on the paper wallet may be encrypted using a password ("BIP38") or split into several different parts ("Shamir's secret sharing scheme"). At the very least, the private key should be well hidden e.g. by folding the wallet in half and sealing it shut.

You can send bitcoins to the public address on your paper wallet as often as you like, and they will be inaccessible until the private key is imported into a "live" wallet. You can use a service such as blockchain.info to verify the balance of your paper wallet, which is a matter of public record. As of version 0.6.0, the bitcoin QT software has a command line feature called "importprivkey" that can load private keys. Online exchanges and wallets such as [[MtGox]], CoinBase and Blockchain.info have features for importing (or "sweeping") paper wallet private keys as well.

=== Software for generating paper wallets ===

Some [[Paper wallet|paper wallet generators]] have been written entirely in HTML/JavaScript to make it fairly easy to generate paper wallets on virtually any operating system. Although these generators use a web browser, they are generally capable of running offline since address generation happens entirely within the web browser. It's advisable to use those services from [https://en.wikipedia.org/wiki/Live_CD live disc], to ensure that private keys are not compromised by spyware.

To generate a safer paper wallet, first save the paper wallet generating code to a newly-formatted USB stick and verify the integrity (SHA1 hash or PGP signature) of the code. Then "clean-boot" your computer with a bootable CD (such as a Linux Live CD) while disconnected from the Internet. Insert the USB stick and open the wallet generator's HTML file using a web browser. Print your paper wallets or store them on external media (do not save them on the computer), and then shut down the computer. You may need to load an appropriate printer driver in order to print while booted from the live CD.

=== Tips for making paper wallets ===

* Disconnecting from the Internet guarantees that that the paper wallet generator is truly self-contained and isn't transmitting your keys online.

* Verifying the integrity of the code (and the trustworthiness of the author) is important to make sure a hacker hasn't modified the HTML so that it generates predictable addresses instead of truly random keys.

* Using a very basic printer is advisable since high-end office printers may have WiFi or internal storage that keeps a cache of printed documents.

* Remember, spyware and viruses often attempt to monitor your computer activities so that their authors can steal from you. They are interested in passwords to online accounts, and anything of value. Bitcoin wallets and private keys are something of value that have already been targeted by malware. If your computer is infected with spyware or viruses - even if there are no symptoms, or your antivirus isn't reporting anything - then anything you type, view, or save on your computer, could potentially be stolen by someone remotely controlling your computer. Your private key can then be intercepted while you enter it, so only enter a Bitcoin private key into your computer when your intent is to redeem its value ''immediately''.

== Hardware wallets ==
[[Hardware wallet]]s are a major effort to provide a good combination of enhanced security and usability.

So far only [http://www.pi-wallet.com/ Pi Wallet] is operational.

==Importance of security updates==

No software is perfect, and from time to time there may be security vulnerabilities found in your Bitcoin client as well.
Be sure you keep your client updated with the latest bug fixes, especially when a new vulnerability is discovered.
We maintain a [[CVEs|list a known vulnerabilities]] on this wiki - you can watch that page to get updates.
Note that you ''don't'' need to be running the latest major client version: some clients, including the popular Bitcoin-Qt, have older versions available with bugfix-only updates.

==Securing the Bitcoin-QT or bitcoind wallet==

Bitcoin transactions send Bitcoins to a specific public key. A Bitcoin address is an encoded hash of a public key. In order to use received Bitcoins, you need to have the private key matching the public key you received with. This is sort of like a super long password associated with an account (the account is the public key). Your Bitcoin wallet contains all of the private keys necessary for spending your received transactions. If you delete your wallet without a backup, then you no longer have the authorization information necessary to claim your coins, and the coins associated with those keys are lost forever.

The wallet contains a pool of queued keys. By default there are 100 keys in the [[key pool]]. The size of the pool is configurable using the "-keypool" command line argument. When you need an address for whatever reason (send, “new address”, generation, etc.), the key is not actually generated freshly, but taken from this pool. A brand new address is generated to fill the pool back to 100. So when a backup is first created, it has all of your old keys plus 100 unused keys. After sending a transaction, it has 99 unused keys. After a total of 100 new-key actions, you will start using keys that are not in your backup. Since the backup does not have the private keys necessary for authorizing spends of these coins, restoring from the old backup will cause you to lose Bitcoins.

Creating a new address generates a new pair of public and private keys, which are added to your wallet. Each keypair is mostly random numbers, so they cannot be known prior to generation. If you backup your wallet and then create more than 100 new addresses, the keypair associated with the newest addresses will not be in the old wallet because the new keypairs are only known after creating them. Any coins received at these addresses will be lost if you restore from the backup.

The situation is made somewhat more confusing because the receiving addresses shown in the UI are not the only keys in your wallet. Each Bitcoin generation is given a new public key, and, more importantly, each sent transaction also sends some number of Bitcoins back to yourself at a new key. When sending Bitcoins to anyone, you generate a new keypair for yourself and simultaneously send Bitcoins to your new public key and the actual recipient's public key. This is an anonymity feature – it makes tracking Bitcoin transactions much more difficult.

So if you create a backup, do more than 100 things that cause a new key to be used, and then restore from the backup, some Bitcoins will be lost. Bitcoin has not deleted any keys (keys are never deleted) – it has created a new key that is not in your old backup and then sent Bitcoins to it.

== Making a new wallet ==

If a wallet or an encrypted wallet's password has been compromised, it is wise to create a new wallet and transfer the full balance of bitcoins to addresses contained only in the newly created wallet. Examples of ways a wallet may be compromised are through password re-use, minimal strength passwords, computer hack or virus attack.

There are a number of ways to create a new wallet with Bitcoin-QT or bitcoind but this is a process that has been tested with bitcoind 0.6.3. We use the copy command to minimize the chance of any data loss but you are warned to make backups of any wallet.dat that holds a balance for you.

:1. Shut down the Bitcoin program.
:2. Find and make a backup of the "compromised" wallet.dat file and rename it, perhaps adding a short description:
:::wallet.dat -> wallet-compromised.dat
:Depending on your OS, the wallet file will be located at:
:::Windows: %APPDATA%\Bitcoin\
:::Linux: ~/.bitcoin/
:::Mac: ~/Library/Application Support/Bitcoin/
:3. Start the Bitcoin program and it will create a new wallet.dat. You may then encrypt the wallet as desired and make a new backup.
:4. Once you've made a new wallet, you can obtain one or more addresses and copy them into a text editor. After obtaining the new address(es), shut down the Bitcoin program, make a backup of the new wallet.dat file and copy it to a new file named wallet-new.dat.
:5. Copy the wallet-compromised.dat file back to wallet.dat, start the Bitcoin program and transfer your balance to the new address(es) you put in your text editor. Once the balance is back to 0 for your compromised wallet, you may want to wait a couple minutes or for a confirmation or check block explorer to be sure the transactions have been broadcasted. Then you may shut down the Bitcoin program.
:6. Rename wallet.dat to wallet-compromised.dat.
:7. Rename wallet-new.dat to wallet.dat.

You should now have a new wallet with all the bitcoins from the old wallet.

==Making a secure workspace==

If you are using your computer to handle bitcoins, a wallet, Bitcoin-related passwords, or Bitcoin private keys, you must take care that the system is free of malware, viruses, keyloggers, remote access tools, and other tools that may be used to make remote copies of any of the above. In the case that your computer is compromised, the precautions taken below may provide additional protection.

===Debian-based Linux===

==== Store all into an encrypted folder (Tomb) ====

Tomb is a simple tool to manage encrypted storage on GNU/Linux. Among its features are bind-hooks to set up a tomb's contents in the place where other programs expect them, for example in our case mount -o bind the .bitcoin directory in a user's home.

First install tomb from https://files.dyne.org/tomb (homepage is on http://www.dyne.org/software/tomb)

Among the requirements: zsh, cryptsetup, pinentry-curses, gnupg, sudo.

Recommended: wipe, dcfldd, steghide, qrencode.

Then create a tomb (we name it bitcoin) with three commands:

<code>tomb dig -s 100 bitcoin.tomb</code>

<code>tomb forge bitcoin.tomb.key</code>

<code>tomb lock bitcoin.tomb -k bitcoin.tomb.key</code>

Then open it

<code>tomb open bitcoin.tomb</code>

This will require you to input again the password you selected.

Once open the tomb contents are in /media/bitcoin.tomb

Move there your bitcoin wallet:

<code>mv ~/.bitcoin /media/bitcoin.tomb/my-safe-wallet</code>

Then create a file "/media/bitcoin.tomb/bind-hooks" and put a single line:

<code>my-safe-wallet .bitcoin</code>

Which means that every time the tomb is open, the directory my-safe-wallet needs to be bound to ~/.bitcoin. Just make sure an empty ~/.bitcoin directory exists in your home.

Now close the tomb and store its keys safely, make sure you memorize the password. Have a look at Tomb's documentation, there is a number of things you can do like steganography or printing out keys on a paper to hide and such.

That's it. Every time you like to access your wallet open the tomb and the .bitcoin will be in place. One can also store the bitcoin binary inside the tomb and even start the bitcoin client using the exec-hooks. Tomb's manual page "man tomb" explains the possibilities.

The advantage of this approach over an encrypted home is that it becomes extremely portable across computers and even online shells: a Tomb is just a file and its key can be stored far away, on different shells, usb sticks or mobile phones.

==== Secure the whole user home directory ====
The first step is to make a [http://www.howtogeek.com/howto/ubuntu/add-a-user-on-ubuntu-server/ new user]. In order for that new user to have an encrypted home directory, you'll first need the encryption utility. Run:

<code>sudo apt-get install ecryptfs-utils</code>

Now you're ready to create a new user

<code>sudo adduser --encrypt-home new_user_name</code>

You'll need to come up with a [[#Choosing_A_Strong_Password|secure]] new password for that user.

When you get to the prompt 'Enter the new value, or press ENTER for the default', just keep hitting ENTER.

Then switch user to the new user. To get to the new user you can use the switch user icon for your system, which on Ubuntu is in the 'System/Quit' screen, or if there is no switch icon on your system you can log out and log back in as the new user.

Since the home folder of this user is encrypted, if you're not logged in as that user, data that is saved there can't be browsed, even by a root user. If something goes wrong with your system, and you need to decrypt the new user's files, you'll need its decryption key.

<code>ecryptfs-unwrap-passphrase</code>

It will ask you for your user's password and give you the decryption key. '''WRITE DOWN OR SAVE THE CODE IT RETURNS''' because you will need it if you ever have to pull your data off while the OS is not working. (You can run it again later if you need to, but run it now so that you can get your data if your Linux install gets botched.)

The encrypted folder data is not encrypted while it's in memory, and so if it's ever sent to the swap partition it can be stolen from there unless that too is encrypted - be aware that this will mean you cannot use Hibernate anymore, as the bootloader won't be able to restore the hibernation data.

<code>ecryptfs-setup-swap</code>

Then click on a folder in the new user to display the file browser, then keep going up folders until you see the new user home directory, then right click to bring up the Properties dialog, then click on the Permissions tab, then in the Others section, set the folder access to None.

For secure browsing, open Firefox, and then go into the Edit menu and click Preferences. Starting from the left, click on the General tab, and in the 'Startup/When Firefox starts' pop up menu, choose 'Show a Blank Page'. Then click on the Content tab, and deselect 'Load images automatically' and deselect 'Enable JavaScript'. Then click on the Privacy tab, and in the 'History/Firefox will' pop up menu, choose 'Never remember history'. Then click on the Security tab, and in the Passwords section, deselect 'Remember passwords for sites' and deselect 'Use a master password'. Then click on the Advanced tab, then click on the Update tab, and then in the 'Automatically check for updates to' section, deselect 'Add-ons' and 'Search Engines'.

When JavaScript is disabled, the [http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.3.23/bitcoin-0.3.23-linux.tar.gz/download Linux download page] will not download automatically, so you'll have to click on the 'direct link' part of the "Problems with the download? Please use this 'direct link' or try another mirror." line.

===Mac===
This solution '''does not scale'''; the amount of needed space can grow beyond the image size.

===Windows===

Due to the frequency with which Windows computers are compromised, it is advised to encrypt your wallet or to keep your wallet on an encrypted disk image created by third-party software, such as [http://www.truecrypt.org/ TrueCrypt] (open source) or [http://www.jetico.com/encryption-bestcrypt/ Jetico BestCrypt] (commercial). This also applies to the storage of passwords, private keys and other data that can be used to access any of your Bitcoin balances.

Assuming that you have installed the Windows Bitcoin client and run it at least once, the process is described below.

To mount the Bitcoin data directory on an encrypted drive
<ol start=1 type=1>
<li>Use the third-party disk image encryption program of your choice to create and mount an encrypted disk image of at least 5GB in size. This procedure stores the entire block chain database with the wallet.dat file so the required size of the encrypted disk image required may grow in the future.</li>
<li>Locate the Bitcoin data directory, and copy the directory with all contents to the encrypted drive.
For help finding this directory, see [[Securing_your_wallet#Locating_Bitcoin_s_data_directory|Locating Bitcoin's Data Directory]].</li>
<li>Create a Windows shortcut that starts Bitcoin with the <code>-datadir</code> parameter and specifies the encrypted drive and directory.
For example, if you installed Bitcoin in the default directory, mounted your Bitcoin encrypted drive as <code>E:\</code>, and stored your Bitcoin data directory on it as <code>Bitcoin</code>, you would type the following command as the shortcut Target:
<blockquote><code>C:\Program Files\Bitcoin\bitcoin.exe -datadir=E:\Bitcoin</code></blockquote></li>
<li>Open Bitcoin's settings and configure it NOT to start automatically when you start Windows.
This is to allow you to mount the Bitcoin encrypted disk image before starting Bitcoin.</li>
<li>Shut down Bitcoin, and then restart it from the new shortcut.</li>
</ol>

After doing this, any time you want to use Bitcoin, you must first mount the Bitcoin encrypted disk image using the same drive designation, and then run Bitcoin from the shortcut that you created, so that it can find its data and your wallet.

=== General Solutions ===

Your wallet.dat file is not encrypted by the Bitcoin program by default but the most current release of the Bitcoin client provides a method to encrypt with a passphrase the private keys stored in the wallet. Anyone who can access an unencrypted wallet can easily steal all of your coins. Use one of these encryption programs if there is any chance someone might gain access to your wallet.
* [http://www.7-zip.org/ 7-zip] - Supports strongly-encrypted archives.
* [http://www.axantum.com/axcrypt/ AxCrypt by Axantum]
* [http://lrzip.kolivas.org lrzip] - Compression software for Linux and OSX that supports very high grade password protected encryption
* [http://www.truecrypt.org/ TrueCrypt] - Volume-based on-the-fly encryption (for advanced users)

There is also a list of [[OpenSourceEncryptionSoftware|open source encryption software.]]

Decrypting and encrypting the wallet.dat every time you start or quit the Bitcoin client can be ''tedious'' (and outright error-prone). If you want to keep your wallet encrypted (except while you're actually running the Bitcoin client), it's better to relegate the automation to a [http://lorelei.kaverit.org/bitcoin.sh small shell script] that handles the en/decryption and starting up Bitcoin client for you (Linux and OSX).

There is also a method to print out and encrypt your wallet.dat as a special, scannable code. See details here: [[WalletPaperbackup]]

==== Password Strength ====
Brute-force password cracking has come a long way. A password including capitals, numbers, and special characters with a length of 8 characters can be trivially solved now (using appropriate hardware). The recommended length is '''at least''' 12 characters long. You can also use a multi-word password and there are techniques to increase the strength of your passwords without sacrificing usability. [http://www.baekdal.com/tips/password-security-usability The Usability of Passwords]

However, simply using dictionary words is also insecure as it opens you up to a dictionary attack. If you use dictionary words, be sure to include random symbols and numbers in the mix as well.

If you use keyfiles in addition to a password, it is unlikely that your encrypted file can ever be cracked using brute-force methods, even when even a 12 character password might be too short.

Assume that any encrypted files you store online (eg. Gmail, Dropbox) will be stored somewhere forever and can never be erased.

===== Choosing A Strong Password =====
Make sure you pick at least one character in each group: 

Lowercase: abcdefghijklmnopqrstuvwxyz
Uppercase: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Number: 1234567890
Symbol: `~!@#$%^&*()-_=+\|[{]};:'",<.>/? (space)

<9 char = unsuitable for use
09 char = insecure
10 char = low security
11 char = medium security
12 char = good security (good enough for your wallet)
13 char = very good, enough for anything.

You might want to read [http://security.stackexchange.com/questions/662/what-is-your-way-to-create-good-passwords-that-can-actually-be-remembered What is your way to create good passwords that can actually be remembered?] and [http://security.stackexchange.com/questions/6095/xkcd-936-short-complex-password-or-long-dictionary-passphrase XKCD #936: Short complex password, or long dictionary passphrase?]

== Backing up your wallet ==
See [[Backingup_your_wallet|Backing up your wallet]].

==Erasing Plain-text Wallets==

In most operating systems, including Windows, Linux, and Mac OS X, simply deleting a wallet.dat file will ''not'' generally destroy it. It is likely that advanced tools can still be used to recover the wallet.dat file, even after it has been deleted.

The Linux '''shred''' command can be used to overwrite the wallet file with random data prior to deleting; this particular copy of the file will then be practically impossible to recover. Using shred (and similar tools on Windows) however does not guarantee that still other copies don't exist somewhere hidden on your HD. That will depend on your system configuration and what packages you have installed. Some system restore and backup tools, for instance, create periodic snapshots of your filesystem, duplicating your wallet.dat.

In Mac OS, the equivalent of '''shred''' is '''srm''' (introduced in Leopard). Using the Finder to remove files, clicking "Secure Empty Trash" in the Finder menu will shred the contents of the trash can. As with any OS this doesn't guarantee that there are not other copies elsewhere on your system.

For Windows, the built-in command ''cipher /W'' will shred all previously-deleted files. [http://www.cylog.org/utilities/cybershredder.jsp CyberShredder] can securely deleted individual files.

==Online and Mobile Wallets==

Thus far, this article has been discussing the security of a wallet file for Bitcoin-QT or bitcoind that is under your sole control. Additional wallets applications and services have become available that offer other features and more convenience but not without introducing additional risk. When storing bitcoins with an [[eWallet]] such as Instawallet or Easywallet, you are essentially storing your private keys or wallet with that provider.

Online wallets have a number of pros and cons to consider. For example, you can access your wallet on any computer in the world, but depending on the service, your bitcoins may be lost if the service is compromised.

Mobile wallet applications are available for Android devices that allow you to send bitcoins by QR code or NFC, but this opens up the possibility of loss if mobile device is compromised. It may be possible to encrypt and backup the wallet or private keys on a mobile device but it is not advisable to store a large amount of bitcoins there without doing your own research and testing.

==See Also==

* [[Data directory]]
* [[How to import private keys]]
* [http://bitcoinx.io/wallets/ Where to get a Bitcoin wallet]
* [http://startbitcoin.com/how-to-create-a-secure-bitcoin-wallet/ Secure Bitcoin Wallet Tutorial]
* [[How to set up a secure offline savings wallet]]
* [http://arimaa.com/bitcoin/ Bitcoin Gateway - A Peer-to-peer Bitcoin Vault and Payment Network]
* [http://blog.cyplo.net/2012/04/01/bitcoin-wallet-recovery-photorec/ Find lost wallet eg. after disk format, using Photorec]

[[Category:Security]]

[[de:Sichere deine Geldbörse]]
[[ru:Bitcoin и безопасность]]
[[es:Cómo asegurar su monedero]]
[[zh-cn:保护你的钱包]]

Using Bitcoin

2014-05-26T00:45:34Z

BitcoinX: /* See also */

<div style="background:#dddddd;border:solid gray 1px;width:70%;margin:auto;">
Current releases of the bitcoin client have a different user interface than the versions used in this article.

This article could use an update. See the discussion for this article for more.
</div>

This page is a detailed tutorial to help new users understand and using bitcoin. After you read this page, you'll know the basics of what bitcoin is and how it is structured, how to get and install the bitcoin client, where to get coins, and how to use the client to send and receive transactions.

If you want to ignore all the details of how the system works, and just want to start using it, see the [[Getting started]] page instead.

=What is Bitcoin=

Bitcoin is a distributed [[digital currency]] based on strong cryptographic principles. Each coin is assigned to the owner's public key, and is transferrable via cryptographically signed messages.

=Getting started=

In this section, you'll learn where to get the client, how to install it on different operating systems, and download the [[block chain]].

==Download and install the client==

First, download the bitcoin client from http://bitcoin.org/. Choose the appropriate link depending on your operating system, and install in the usual manner. For Windows, easiest is probably the executable installer. For Linux, note that the tar.gz contains the binary build, in addition to the source, so if you run a recent distribution, you should be able to just run the binary without compiling yourself.

===Issues with Linux package repositories===
Be warned that the version of Bitcoin Core in some package repositories are severely out of date and may be harmful to use. For Debian, users should use [https://packages.debian.org/source/unstable/bitcoin the package from the 'unstable' repository]. For Ubuntu and derivatives, please use the PPA link [https://bitcoin.org/en/download on bitcoin.org]. Please see [https://launchpad.net/+help-soyuz/ppa-sources-list.html this guide] for details on how to use the PPA. You can also choose to use the static binary or to compile from source (both are in the 'tgz' file on the bitcoin.org download page), although updates will not be automated. Please refer to [https://bitcoin.org/en/download this page] for the latest version number.

==Starting the client and connecting to the network==

[[File:First time run fin.png|400px|thumb|right|Bitcoin is initializing by establishing a connection to other clients and downloading the blocks.]]
Bitcoin comes with a GUI client called "bitcoin", and a CLI (text-mode) client called "bitcoind". It is probably more user-friendly to start with the GUI, so launch the bitcoin client.

When you start for the first time, your bitcoin wallet will be created automatically, and the client will attempt to establish connections to other nodes on the network and start downloading the bitcoin [[block chain]]. You must get all of the blocks in the chain before sending/receiving transactions. [http://blockexplorer.com/q/getblockcount Click here] to see the current number of blocks in the chain. This download may take as long as several hours.

==Client features==

Your starting bitcoin address (you can have as many as you want - we'll talk about [[#Bitcoin addresses|addresses]] later) shows in a text box at the top. Right below it is your total bitcoin balance, which, of course, to start with will be zero. There is a list box below it showing all your transactions, which can be variously filtered with tabs, which again will be empty to start with.

The status bar at the bottom will display some important information. If you have [[#Generating bitcoins|bitcoin generation (block hashing)]] turned on, on the left the client will display your hash rate. To the right of that, you will see the number of bitcoin nodes your client is connected to, then, the number of blocks your client has in its chain, and finally, the number of transactions you have in your wallet.

=Using bitcoin=

In this section you will learn about bitcoin addresses, sending and receiving transactions, the block chain and transaction confirmations, where to get your first bitcoins (faucet), generation. Tips on keeping wallet safe.

==Getting your first bitcoins==

There are few things more exciting than getting your first bitcoins! So once you have all the blocks downloaded, head on over to the [https://freebitcoins.appspot.com/ bitcoin faucet], fill out the form and put in your bitcoin address, and receive some free bitcoin! (You can do this before finishing the block chain download, but you won't see the coins in your wallet until you finish downloading the blocks... which would put a damper on the whole excitement bit.)

See [http://en.bitcoin.it/wiki/Trade#Samples_and_Marketing_Offers Samples and Marketing Offers] for other free bitcoins and marketing offers.

Once you submit the form successfully, you should see a new transaction in your client within seconds. But it will be grayed out, and have 0/unconfirmed status:
[[File:First btc recv.png|frame|none]]

Once your transaction makes it into the block chain, the confirmation count will grow in step with the number of blocks in the chain. By default, the client stops showing "unconfirmed" after the transaction is 6 blocks deep in the chain:
[[File:Six confirms bitcoin client.png|frame|none]]

==Bitcoin addresses==

You can create as many new addresses as you like. Using a different address each time helps to preserve your [[anonymity]].

You cannot send BTC to an invalid address. Client will refuse to send payment to a misspecified address. (Though with care you can craft a valid but nonexistent address.)




==Generating bitcoins==

In order to generate bitcoins, you will need to perform bitcoin [[mining]]. As of 2013, the competition for bitcoin mining has become intense, so you are unlikely to achieve much without specialized hardware.

=See also=

* [[Getting started]] A brief tutorial for the impatient
* [http://bitcoinX.io BitcoinX.io] View where to buy and store your bitcoins on the only Bitcoin peer-to-peer review site, BitcoinX

[[Category:Introduction]]

Help:Introduction

2014-05-26T00:43:34Z

BitcoinX:

The purpose of this page is to provide a general overview of the Bitcoin system and economy.

==Basic Concepts==

===Currency===

Alice wants to buy the [http://www.grasshillalpacas.com/alpacaproductsforbitcoinoffer.html Alpaca socks] which Bob has for sale. In return, she must provide something of equal value to Bob. The most efficient way to do this is by using a medium of exchange that Bob accepts which would be classified as currency. Currency makes trade easier by eliminating the need for [http://en.wikipedia.org/wiki/Coincidence_of_wants coincidence of wants] required in other systems of trade such as barter. Currency adoption and acceptance can be global, national, or in some cases local or community-based.

===Banks===

Alice need not provide currency to Bob in-person. She may instead transfer this value by first entrusting her currency to a bank who promises to store and protect Alice's currency notes. The bank gives Alice a written promise (called a "bank statement") that entitles her to withdraw the same number of currency bills that she deposited. Since the money is still Alice's, she is entitled to do with it whatever she pleases, and the bank (like most banks), for a small fee, will do Alice the service of passing on the currency bills to Bob on her behalf. This is done by Alice's bank by giving the dollar bills to Bob's bank and informing them that the money is for Bob, who will then see the amount the next time he checks his balance or receives his bank statement.

Since banks have many customers, and bank employees require money for doing the job of talking to people and signing documents, banks in recent times have been using machines such as ATMs and web servers that do the job of interacting with customers instead of paid bank employees. The task of these machines is to learn what each customer wants to do with their money and, to the extent that it is possible, act on what the customer wants (for example, ATMs can hand out cash). Customers can always know how much money they have in their accounts, and they are confident that the numbers they see in their bank statements and on their computer screens accurately reflect the number of dollars that they can get from the bank on demand. They can be so sure of this that they can accept those numbers in the same way they accept paper banknotes (this is similar to the way people started accepting paper dollars when they had been accepting gold or silver).

Such a system has several disadvantages:
* It is costly. [https://en.wikipedia.org/wiki/Electronic_funds_transfer EFTs] in Europe can cost 25 euros. Credit transactions can cost several percent of the transaction.
* It is slow. Checking and low cost wire services take days to complete.
* In most cases, it cannot be anonymous.
* Accounts can be frozen, or their balance partially or wholly confiscated.
* Banks and other payment processors like PayPal, Visa, and Mastercard may refuse to process payments for certain legal entities.

Bitcoin is a system of owning and voluntarily transferring amounts of so-called ''bitcoins'', in a manner similar to an on-line banking, but pseudonymously and without reliance on a central authority to maintain account balances. If bitcoins are valuable, it is because they are useful and limited in supply.

==Bitcoin Basics==

===Creation of coins===

The creation of coins must be limited for the currency to have any value.

New coins are slowly [[Mining|mined]] into existence by following a mutually agreed-upon set of rules. A user [[Mining|mining]] bitcoins is running a software program that searches tirelessly for a solution to a very difficult math problem whose difficulty is precisely known. The difficulty is automatically adjusted regularly so that the number of solutions found globally, by everyone, for a given unit of time is constant: an average of 6 per hour. When a solution is found, the user may tell everyone of the existence of this newly found solution, along with other information, packaged together in what is called a "[[Block|block]]".

Blocks create 25 new bitcoins at present. This amount, known as the block reward, is an incentive for people to perform the computation work required for generating blocks. Roughly every 4 years, the number of bitcoins that can be "mined" in a block reduces by 50%. Originally the block reward was 50 bitcoins; it halved in November 2012. Any block that is created by a malicious user that does not follow this rule (or any other rules) will be rejected by everyone else. In the end, no more than 21 million bitcoins will ever exist.

Because the block reward will decrease over the long term, miners will some day instead pay for their hardware and electricity costs by collecting [[Transaction_fee|transaction fees]]. The sender of money may voluntarily pay a small transaction fee which will be kept by whoever finds the next block. Paying this fee will encourage miners to include the transaction in a block more quickly.

===Sending payments===

To guarantee that a third-party, let's call her Eve, cannot spend other people's bitcoins by creating transactions in their names, Bitcoin uses [[Wikipedia:Public-key_cryptography|public key cryptography]] to make and verify digital signatures. In this system, each person, such as Alice or Bob, has one or more addresses each with an associated pair of public and private keys that they may hold in a [[Wallet|wallet]]. Only the user with the private key can sign a transaction to give some of their bitcoins to somebody else, but anyone can validate the signature using that user’s public key.

Suppose Alice wants to send a bitcoin to Bob.
* Bob sends his address to Alice.
* Alice adds Bob’s address and the amount of bitcoins to transfer to a message: a 'transaction' message.
* Alice signs the transaction with her private key, and announces her public key for signature verification.
* Alice broadcasts the transaction on the Bitcoin network for all to see.

(Only the first two steps require human action. The rest is done by the Bitcoin client software.)

Looking at this transaction from the outside, anyone who knows that these addresses belong to Alice and Bob can see that Alice has agreed to transfer the amount to Bob, because nobody else has Alice's private key. Alice would be foolish to give her private key to other people, as this would allow them to sign transactions in her name, removing funds from her control.

Later on, when Bob wishes to transfer the same bitcoins to Charley, he will do the same thing:
* Charlie sends Bob his address.
* Bob adds Charlie's address and the amount of bitcoins to transfer to a message: a 'transaction' message.
* Bob signs the transaction with his private key, and announces his public key for signature verification.
* Bob broadcasts the transaction on the Bitcoin network for all to see.

Only Bob can do this because only he has the private key that can create a valid signature for the transaction.

Eve cannot change whose coins these are by replacing Bob’s address with her address, because Alice signed the transfer to Bob using her own private key, which is kept secret from Eve, and instructing that the coins which were hers now belong to Bob. So if Charlie accepts that the original coin was in the hands of Alice, he will also accept the fact that this coin was later passed to Bob, and now Bob is passing this same coin to him.

===Preventing [[double-spending]]===

The process described above does not prevent Alice from using the same bitcoins in more than one transaction. The following process does; this is the primary innovation behind Bitcoin.

* Details about the [[Transactions|transaction]] are [[Network|sent and forwarded]] to all or as many other computers as possible.
* A constantly growing chain of [[Blocks|blocks]] that contains a record of all transactions is collectively maintained by all computers (each has a full copy).
* To be accepted in the chain, transaction blocks must be valid and must include [[proof of work]] (one block generated by the network every 10 minutes).
* Blocks are chained in a way so that, if any one is modified, all following blocks will have to be recomputed.
* When multiple valid continuations to this chain appear, only the longest such branch is accepted and it is then extended further.

When Bob sees that his transaction has been included in a block, which has been made part of the single longest and fastest-growing block chain (extended with significant computational effort), he can be confident that the transaction by Alice has been accepted by the computers in the network and is permanently recorded, preventing Alice from creating a second transaction with the same coin. In order for Alice to thwart this system and double-spend her coins, she would need to muster more computing power than all other Bitcoin users combined.

===Anonymity===

When it comes to the Bitcoin network itself, there are no "accounts" to set up, and no e-mail addresses, user-names or passwords are required to hold or spend bitcoins. Each balance is simply associated with an address and its public-private key pair. The money "belongs" to anyone who has the private key and can sign transactions with it. Moreover, those keys do not have to be registered anywhere in advance, as they are only used when required for a transaction. Transacting parties do not need to know each other's identity in the same way that a store owner does not know a cash-paying customer's name.

A [[Address|Bitcoin address]] mathematically corresponds to a public key and looks like this:

:1PC9aZC4hNX2rmmrt7uHTfYAS3hRbph4UN

Each person can have many such addresses, each with its own balance, which makes it very difficult to know which person owns what amount. In order to protect his [[Anonymity|privacy]], Bob can generate a new public-private key pair for each individual receiving transaction and the Bitcoin software encourages this behavior by default. Continuing the example from above, when Charlie receives the bitcoins from Bob, Charlie will not be able to identify who owned the bitcoins before Bob.

===Capitalization / Nomenclature===

Since Bitcoin is both a currency and a protocol, capitalization can be confusing. Accepted practice is to use ''Bitcoin'' (singular with an upper case letter B) to label the protocol, software, and community, and ''bitcoins'' (with a lower case b) to label units of the currency.

==Where to see and explore==

You can directly explore the system in action by visiting [https://www.biteasy.com/ Biteasy.com], [http://blockchain.info/ Blockchain.info], [http://btc.blockr.io/ Blokr.io Bitcoin Block Explorer] or [http://blockexplorer.com/ Bitcoin Block Explorer].
The site shows you the latest blocks in the block chain. The [[Block_chain|block chain]] contains the agreed history of all transactions that took place in the system.
Note how many blocks were generated in the last hour, which on average will be 6. Also notice the number of transactions and the total amount transferred in the last hour (last time I checked it was about 64 and 15K).
This should give you an indication of how active the system is.

Next, navigate to one of these blocks.
The block's [[hash]] begins with a run of zeros. This is what made creating the block so difficult; a hash that begins with many zeros is much more difficult to find than a hash with few or no zeros. The computer that generated this block had to try many ''Nonce'' values (also listed on the block's page) until it found one that generated this run of zeros.
Next, see the line titled ''Previous block''. Each block contains the hash of the block that came before it. This is what forms the chain of blocks.
Now take a look at all the transactions the block contains. The first transaction is the income earned by the computer that generated this block. It includes a fixed amount of coins created out of "thin air" and possibly a fee collected from other transactions in the same block.

Drill down into any of the transactions and you will see how it is made up of one or more amounts coming in and out.
Having more than one incoming and outgoing amount in a transaction enables the system to join and break amounts in any possible way, allowing for any fractional amount needed. Each incoming amount is a past transaction (which you can also view) from someone's address, and each outgoing amount is addressed to someone and will be part of a future transaction (which you can also navigate down into if it has already taken place.)

Finally you can follow any of the [[Address|addresses]] links and see what public information is available for them.

To get an impression of the amount of activity on the Bitcoin network, you might like to visit the monitoring websites [[Bitcoin Monitor]] and [[Bitcoin Watch]]. The first shows a real-time visualization of events on the Bitcoin network, and the second lists general statistics on the amount and size of recent transactions.

===How many people use Bitcoin?===

This is quite a difficult question to answer accurately. One approach is to count how many bitcoin clients connected to the network in the last 24 hours. We can do this because some clients transmit their addresses to the other members of the network periodically. In September 2011 this method suggested that there were about {{formatnum:60000}} users.

==See Also==
* [http://bitcoinhelp.net Bitcoin Help] — the simple guide to Bitcoin.
* Learn the entire history of Bitcoin in the interactive timeline at [http://historyofbitcoin.org History of Bitcoin].
* Get started buying bitcoins at [http://coinbase.com/ Coinbase].
* [http://bitcoinX.io BitcoinX.io] Website Dedicated to Providing Users with the Best Information on Where to Buy, Sell and Trade Bitcoins. Covers all of the Major Exchanges.
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - For business that want to learn more about Bitcoin
* [https://www.trybtc.com/ TryBTC] easiest way to get started using bitcoin. Gives you free coins to create a bitcoin wallet and start spending.
* [http://www.youtube.com/watch?v=Um63OQz3bjo What is Bitcoin?] video introduction
* Installing Bitcoin [[getting started]]
* [[Using Bitcoin]]
* A gentle introduction to Bitcoin - [[BitcoinMe]]
* [http://coinlab.com/2011/12/bitcoin-primer Bitcoin Primer] from CoinLab
* Another introduction, ''The Rebooting Of Money'' podcast is found at [[Bitcoin Money]]
* A beginner's step-by-step guide to using Bitcoin, use of alternative wallets, and generally keeping your money and computer secure - [http://BitcoinIntro.com BitcoinIntro.com]
* [http://howtobitcoin.info howtobitcoin.info] Directory of bitcoin links for beginners
* Amazon Kindle Book [http://www.amazon.com/Bitcoin-Step-by-ebook/dp/B00A1CUQQU Bitcoin Step by Step] $3.99 (USD). The author walks you step by step through getting started.
* [http://dpassport.com/free-reports/Free-Bitcoin-Report.pdf Free Bitcoin report] by Brad Gosse and Jennifer Wozniak

[[zh-cn:简介]]

[[de:Einführung]]
[[fr:Introduction]]

Help:Introduction

2014-05-26T00:41:13Z

BitcoinX:

The purpose of this page is to provide a general overview of the Bitcoin system and economy.

==Basic Concepts==

===Currency===

Alice wants to buy the [http://www.grasshillalpacas.com/alpacaproductsforbitcoinoffer.html Alpaca socks] which Bob has for sale. In return, she must provide something of equal value to Bob. The most efficient way to do this is by using a medium of exchange that Bob accepts which would be classified as currency. Currency makes trade easier by eliminating the need for [http://en.wikipedia.org/wiki/Coincidence_of_wants coincidence of wants] required in other systems of trade such as barter. Currency adoption and acceptance can be global, national, or in some cases local or community-based.

===Banks===

Alice need not provide currency to Bob in-person. She may instead transfer this value by first entrusting her currency to a bank who promises to store and protect Alice's currency notes. The bank gives Alice a written promise (called a "bank statement") that entitles her to withdraw the same number of currency bills that she deposited. Since the money is still Alice's, she is entitled to do with it whatever she pleases, and the bank (like most banks), for a small fee, will do Alice the service of passing on the currency bills to Bob on her behalf. This is done by Alice's bank by giving the dollar bills to Bob's bank and informing them that the money is for Bob, who will then see the amount the next time he checks his balance or receives his bank statement.

Since banks have many customers, and bank employees require money for doing the job of talking to people and signing documents, banks in recent times have been using machines such as ATMs and web servers that do the job of interacting with customers instead of paid bank employees. The task of these machines is to learn what each customer wants to do with their money and, to the extent that it is possible, act on what the customer wants (for example, ATMs can hand out cash). Customers can always know how much money they have in their accounts, and they are confident that the numbers they see in their bank statements and on their computer screens accurately reflect the number of dollars that they can get from the bank on demand. They can be so sure of this that they can accept those numbers in the same way they accept paper banknotes (this is similar to the way people started accepting paper dollars when they had been accepting gold or silver).

Such a system has several disadvantages:
* It is costly. [https://en.wikipedia.org/wiki/Electronic_funds_transfer EFTs] in Europe can cost 25 euros. Credit transactions can cost several percent of the transaction.
* It is slow. Checking and low cost wire services take days to complete.
* In most cases, it cannot be anonymous.
* Accounts can be frozen, or their balance partially or wholly confiscated.
* Banks and other payment processors like PayPal, Visa, and Mastercard may refuse to process payments for certain legal entities.

Bitcoin is a system of owning and voluntarily transferring amounts of so-called ''bitcoins'', in a manner similar to an on-line banking, but pseudonymously and without reliance on a central authority to maintain account balances. If bitcoins are valuable, it is because they are useful and limited in supply.

==Bitcoin Basics==

===Creation of coins===

The creation of coins must be limited for the currency to have any value.

New coins are slowly [[Mining|mined]] into existence by following a mutually agreed-upon set of rules. A user [[Mining|mining]] bitcoins is running a software program that searches tirelessly for a solution to a very difficult math problem whose difficulty is precisely known. The difficulty is automatically adjusted regularly so that the number of solutions found globally, by everyone, for a given unit of time is constant: an average of 6 per hour. When a solution is found, the user may tell everyone of the existence of this newly found solution, along with other information, packaged together in what is called a "[[Block|block]]".

Blocks create 25 new bitcoins at present. This amount, known as the block reward, is an incentive for people to perform the computation work required for generating blocks. Roughly every 4 years, the number of bitcoins that can be "mined" in a block reduces by 50%. Originally the block reward was 50 bitcoins; it halved in November 2012. Any block that is created by a malicious user that does not follow this rule (or any other rules) will be rejected by everyone else. In the end, no more than 21 million bitcoins will ever exist.

Because the block reward will decrease over the long term, miners will some day instead pay for their hardware and electricity costs by collecting [[Transaction_fee|transaction fees]]. The sender of money may voluntarily pay a small transaction fee which will be kept by whoever finds the next block. Paying this fee will encourage miners to include the transaction in a block more quickly.

===Sending payments===

To guarantee that a third-party, let's call her Eve, cannot spend other people's bitcoins by creating transactions in their names, Bitcoin uses [[Wikipedia:Public-key_cryptography|public key cryptography]] to make and verify digital signatures. In this system, each person, such as Alice or Bob, has one or more addresses each with an associated pair of public and private keys that they may hold in a [[Wallet|wallet]]. Only the user with the private key can sign a transaction to give some of their bitcoins to somebody else, but anyone can validate the signature using that user’s public key.

Suppose Alice wants to send a bitcoin to Bob.
* Bob sends his address to Alice.
* Alice adds Bob’s address and the amount of bitcoins to transfer to a message: a 'transaction' message.
* Alice signs the transaction with her private key, and announces her public key for signature verification.
* Alice broadcasts the transaction on the Bitcoin network for all to see.

(Only the first two steps require human action. The rest is done by the Bitcoin client software.)

Looking at this transaction from the outside, anyone who knows that these addresses belong to Alice and Bob can see that Alice has agreed to transfer the amount to Bob, because nobody else has Alice's private key. Alice would be foolish to give her private key to other people, as this would allow them to sign transactions in her name, removing funds from her control.

Later on, when Bob wishes to transfer the same bitcoins to Charley, he will do the same thing:
* Charlie sends Bob his address.
* Bob adds Charlie's address and the amount of bitcoins to transfer to a message: a 'transaction' message.
* Bob signs the transaction with his private key, and announces his public key for signature verification.
* Bob broadcasts the transaction on the Bitcoin network for all to see.

Only Bob can do this because only he has the private key that can create a valid signature for the transaction.

Eve cannot change whose coins these are by replacing Bob’s address with her address, because Alice signed the transfer to Bob using her own private key, which is kept secret from Eve, and instructing that the coins which were hers now belong to Bob. So if Charlie accepts that the original coin was in the hands of Alice, he will also accept the fact that this coin was later passed to Bob, and now Bob is passing this same coin to him.

===Preventing [[double-spending]]===

The process described above does not prevent Alice from using the same bitcoins in more than one transaction. The following process does; this is the primary innovation behind Bitcoin.

* Details about the [[Transactions|transaction]] are [[Network|sent and forwarded]] to all or as many other computers as possible.
* A constantly growing chain of [[Blocks|blocks]] that contains a record of all transactions is collectively maintained by all computers (each has a full copy).
* To be accepted in the chain, transaction blocks must be valid and must include [[proof of work]] (one block generated by the network every 10 minutes).
* Blocks are chained in a way so that, if any one is modified, all following blocks will have to be recomputed.
* When multiple valid continuations to this chain appear, only the longest such branch is accepted and it is then extended further.

When Bob sees that his transaction has been included in a block, which has been made part of the single longest and fastest-growing block chain (extended with significant computational effort), he can be confident that the transaction by Alice has been accepted by the computers in the network and is permanently recorded, preventing Alice from creating a second transaction with the same coin. In order for Alice to thwart this system and double-spend her coins, she would need to muster more computing power than all other Bitcoin users combined.

===Anonymity===

When it comes to the Bitcoin network itself, there are no "accounts" to set up, and no e-mail addresses, user-names or passwords are required to hold or spend bitcoins. Each balance is simply associated with an address and its public-private key pair. The money "belongs" to anyone who has the private key and can sign transactions with it. Moreover, those keys do not have to be registered anywhere in advance, as they are only used when required for a transaction. Transacting parties do not need to know each other's identity in the same way that a store owner does not know a cash-paying customer's name.

A [[Address|Bitcoin address]] mathematically corresponds to a public key and looks like this:

:1PC9aZC4hNX2rmmrt7uHTfYAS3hRbph4UN

Each person can have many such addresses, each with its own balance, which makes it very difficult to know which person owns what amount. In order to protect his [[Anonymity|privacy]], Bob can generate a new public-private key pair for each individual receiving transaction and the Bitcoin software encourages this behavior by default. Continuing the example from above, when Charlie receives the bitcoins from Bob, Charlie will not be able to identify who owned the bitcoins before Bob.

===Capitalization / Nomenclature===

Since Bitcoin is both a currency and a protocol, capitalization can be confusing. Accepted practice is to use ''Bitcoin'' (singular with an upper case letter B) to label the protocol, software, and community, and ''bitcoins'' (with a lower case b) to label units of the currency.

==Where to see and explore==

You can directly explore the system in action by visiting [https://www.biteasy.com/ Biteasy.com], [http://blockchain.info/ Blockchain.info], [http://btc.blockr.io/ Blokr.io Bitcoin Block Explorer] or [http://blockexplorer.com/ Bitcoin Block Explorer].
The site shows you the latest blocks in the block chain. The [[Block_chain|block chain]] contains the agreed history of all transactions that took place in the system.
Note how many blocks were generated in the last hour, which on average will be 6. Also notice the number of transactions and the total amount transferred in the last hour (last time I checked it was about 64 and 15K).
This should give you an indication of how active the system is.

Next, navigate to one of these blocks.
The block's [[hash]] begins with a run of zeros. This is what made creating the block so difficult; a hash that begins with many zeros is much more difficult to find than a hash with few or no zeros. The computer that generated this block had to try many ''Nonce'' values (also listed on the block's page) until it found one that generated this run of zeros.
Next, see the line titled ''Previous block''. Each block contains the hash of the block that came before it. This is what forms the chain of blocks.
Now take a look at all the transactions the block contains. The first transaction is the income earned by the computer that generated this block. It includes a fixed amount of coins created out of "thin air" and possibly a fee collected from other transactions in the same block.

Drill down into any of the transactions and you will see how it is made up of one or more amounts coming in and out.
Having more than one incoming and outgoing amount in a transaction enables the system to join and break amounts in any possible way, allowing for any fractional amount needed. Each incoming amount is a past transaction (which you can also view) from someone's address, and each outgoing amount is addressed to someone and will be part of a future transaction (which you can also navigate down into if it has already taken place.)

Finally you can follow any of the [[Address|addresses]] links and see what public information is available for them.

To get an impression of the amount of activity on the Bitcoin network, you might like to visit the monitoring websites [[Bitcoin Monitor]] and [[Bitcoin Watch]]. The first shows a real-time visualization of events on the Bitcoin network, and the second lists general statistics on the amount and size of recent transactions.

===How many people use Bitcoin?===

This is quite a difficult question to answer accurately. One approach is to count how many bitcoin clients connected to the network in the last 24 hours. We can do this because some clients transmit their addresses to the other members of the network periodically. In September 2011 this method suggested that there were about {{formatnum:60000}} users.

==See Also==
* [http://bitcoinhelp.net Bitcoin Help] — the simple guide to Bitcoin.
* Learn the entire history of Bitcoin in the interactive timeline at [http://historyofbitcoin.org History of Bitcoin].
* Get started buying bitcoins at [http://coinbase.com/?r=514b6eb6a18f2fdde50000db&utm_campaign=user-referral&src=referral-link Coinbase].
* [http://bitcoinX.io BitcoinX.io] Website Dedicated to Providing Users with the Best Information on Where to Buy, Sell and Trade Bitcoins. Covers all of the Major Exchanges.
* [[File:MCS_200by200_logo-01.png|20px|link=http://www.mycoinsolution.com]][http://www.mycoinsolution.com My Coin Solution] - For business that want to learn more about Bitcoin
* For an introductory site see [http://wheretobuycryptocoins.com WhereToBuyCryptocoins.com]. Explains what is a cryptocoin, how it works, and have many lists of markets, exchanges, faucets, sites to spend money, prices, etc. For starters and reference.
* [https://www.trybtc.com/ TryBTC] easiest way to get started using bitcoin. Gives you free coins to create a bitcoin wallet and start spending.
* [http://www.youtube.com/watch?v=Um63OQz3bjo What is Bitcoin?] video introduction
* Installing Bitcoin [[getting started]]
* [[Using Bitcoin]]
* A gentle introduction to Bitcoin - [[BitcoinMe]]
* [http://coinlab.com/2011/12/bitcoin-primer Bitcoin Primer] from CoinLab
* Another introduction, ''The Rebooting Of Money'' podcast is found at [[Bitcoin Money]]
* A beginner's step-by-step guide to using Bitcoin, use of alternative wallets, and generally keeping your money and computer secure - [http://BitcoinIntro.com BitcoinIntro.com]
* [http://howtobitcoin.info howtobitcoin.info] Directory of bitcoin links for beginners
* Amazon Kindle Book [http://www.amazon.com/Bitcoin-Step-by-ebook/dp/B00A1CUQQU Bitcoin Step by Step] $3.99 (USD). The author walks you step by step through getting started.
* [http://dpassport.com/free-reports/Free-Bitcoin-Report.pdf Free Bitcoin report] by Brad Gosse and Jennifer Wozniak

[[zh-cn:简介]]

[[de:Einführung]]
[[fr:Introduction]]

Help:Getting started

2014-05-26T00:37:51Z

BitcoinX:

WARNING: This wiki and the links it contains can be edited by anyone, always verify that the URL to the site you are visiting is correct. Before trusting or sending your bitcoins to any website you should always search on additional resources such as google, [https://bitcointa.lk bitcointalk forums] or [http://reddit.com/r/bitcoin reddit] to see what other users are saying about the service.

* Get started buying bitcoins at [[Coinbase_(business)|Coinbase]] or [[Bitstamp]]
* Start by watching [http://weusecoins.com/ this 2 minute vid].
* Learn why it [http://bitcoin.stackexchange.com/questions/2834/what-are-the-perceived-advantages-of-bitcoin-as-a-store-of-value could be a good investment]
* Learn why it's objectively [http://bitcoin.stackexchange.com/questions/305/what-are-the-perceived-advantages-of-bitcoin-as-a-means-of-exchange better as a means of exchange].
* Get a [[Clients|client]] and try it out yourself.
* Use an online wallet that you trust.
(Examples: [[File:Bci.gif|20px|link=https://blockchain.info/]] [https://blockchain.info/wallet/ BCI], [[File:Greenaddress.png|20px|link=https://greenaddress.it]]
* Explore bitcoin with a [[:Category:Block chain browsers|block chain browser]] such as [https://www.blockchain.info Blockchain.info]
* [http://bitcoin.stackexchange.com/ Ask questions]
* [http://bitcoin.stackexchange.com/questions/118/how-much-bitcoin-will-i-mine-right-now-with-hardware-x Can I generate Free Money on my computer?] - TL;DR - Not really.
* [https://en.bitcoin.it/wiki/FAQ Read the FAQ]
* [[Buying Bitcoins (the noob version)|Where can I buy bitcoins?]] (Hint: [http://bitcoin.stackexchange.com/questions/2293/how-can-i-buy-bitcoin-via-a-credit-card-or-paypal You can't buy them with Paypal or credit cards])
* [http://bitcoinx.io/ Where to buy and store your bitcoins]

If you're looking for how to get started with Bitcoin-Qt, [[Getting started installing bitcoin-qt|this is the article you're looking for]].

==See Also==

* [[Introduction|Bitcoin Introduction]]
* [[Bonus_Programs|Bonus Programs]]
* [[Trade|Bitcoin Businesses]]

Buying bitcoins

2014-05-26T00:32:03Z

BitcoinX: /* Exchange Directories */

There are various methods available for '''buying bitcoins'''. If you are located in the USA, [http://coinbase.com/?r=51588b4b2d5b53284800003a&utm_campaign=user-referral&src=referral-link Coinbase] is your best option. See [[Buying Bitcoins (the noob version)|here for a Newb-friendly version]] of this page.

'''NOTE:''' For taking advantage of Bitcoin volatility you are able to trade CFDs through [http://www.avatrade.com/lp/trade-bitcoin?tag=39206&tag2 AvaTrade] or [http://www.plus500.com/Instruments/BTCUSD?id=73407&pl=2 Plus500]. When trading online your capital may be at risk. Trading CFDs is suitable for more experienced traders.

{{Counterparty-warning}}

==Market Exchanges==

Market exchanges are those in which buy orders are matched with sell orders, so the price offered depends on the market. If a service quotes a price then it is not operating a [http://bitcoincharts.com/markets market] but instead is a broker that buys and/or sells coins. Those exchanges are found in the list of [[Buying bitcoins#Fixed_Rate_Exchanges_.26_Others|fixed-rate exchanges]].

Exchanges are listed in alphabetical order.

{| class="wikitable"
|-
| Exchange || Adding Funds || Withdrawing Funds || Notes
|-
| [[File:ANXIcon.png|20px|link=https://anxbtc.com]] [https://anxbtc.com ANXBTC]([https://en.bitcoin.it/wiki/Asia_Nexgen_Bitcoin_Exchange info)] || BTC HKD (International Bank Wire) HKD (Local Bank Transfer) HKD (In Store Cash Deposit) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || BTC HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || <ul> <li>Zero Trading Fees</li><li> Daily processing of withdrawals and deposits Mon-Fri<li>All 10 fiat currency orders are maintained within a single order book</li><li> Registered and based in Hong Kong</li><li> An approved Money Services Operator (MSO) with a license issued by the Hong Kong Customs and Excise Department</li><li>Gox compatible trading API Available</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li><li>Accepts cash deposits at the world's first Bitcoin retail store</li><li>Native wallet apps for both [https://play.google.com/store/apps/details?id=com.anxbtc.android Android] and [https://itunes.apple.com/us/app/anx-vault-your-bitcoin-wallet/id855057847?ls=1&mt=8 iOS]</li></ul>
|-
| [[File:ANXIcon.png|20px|link=https://anxpro.com]] [https://anxpro.com ANXPRO]([https://en.bitcoin.it/wiki/Asia_Nexgen_Bitcoin_Exchange info)] || BTC LTC PPC NMC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) HKD (In Store Cash Deposit) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || BTC LTC PPC NMC DOGE HKD (International Bank Wire) HKD (Local Bank Transfer) USD (International Bank Wire) USD (EgoPay) AUD (Local Bank Transfer) AUD (International Bank Wire) CAD (International Bank Wire) CHF (International Bank Wire) EUR (SEPA) EUR (International Bank Wire) EUR (EgoPay) GBP (International Bank Wire) JPY (International Bank Wire) NZD (International Bank Wire) SGD (International Bank Wire) || <ul> <li>Zero Trading Fees</li><li>The only crypto-currency exchange in the world that facilitates Altcoin trading in ALL major currencies</li><li> Daily processing of withdrawals and deposits Mon-Fri<li>All 10 fiat currency orders are maintained within a single order book</li><li> Registered and based in Hong Kong</li><li> An approved Money Services Operator (MSO) with a license issued by the Hong Kong Customs and Excise Department</li><li>Gox compatible trading API Available, inc. support for Altcoins</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li><li>Accepts cash deposits at the world's first Bitcoin retail store</li><li>Advanced trading interface including support for keyboard hotkeys (i.e. 'B' for Buy, 'L' for Limit, 'Enter' to execute, etc)</li><li>Native wallet apps for both [https://play.google.com/store/apps/details?id=com.anxbtc.android Android] and [https://itunes.apple.com/us/app/anx-vault-your-bitcoin-wallet/id855057847?ls=1&mt=8 iOS]</li></ul>
|-
| [[File:BitQuickco.png|20px|link=https://www.bitquick.co]] [https://www.bitquick.co BitQuick.co]([https://en.bitcoin.it/wiki/BitQuick.co info)] || BTC Cash Deposit SEPA Transfer (International) || BTC|| Connects buyers to sellers around the globe via bank cash deposit or SEPA transfer. No registration required. Instant deposit to any bitcoin address after cash deposit or SEPA transfer receipt received.
|-
| [https://www.bitsource.org BitSource.org]([https://en.bitcoin.it/wiki/BitSource info)] || BTC LTC PPC Visa Mastercard Cash Deposit SEPA Transfer (International) OKPay Payeer EgoPay SWIFT Transfers/Bank wire PerfectMoney MoneyPak || BTC LTC PPC Bank Wire|| BitSource.org is a crypto-currency exchange platform focused on simplifying the purchase and sale of Bitcoin, Litecoin, and other crypto-currencies. The company holds up to 98% of customer funds in cold wallets and offline in bank vaults to prevent theft or loss.
|-
| [[Bitcoin Central]] || BTC EUR (SEPA bank transfer) International wire transfer || BTC EUR (SEPA bank transfer) International wire transfer ||
|-
| [[bitNZ]] || BTC NZD (Cash depost as Westbank) || BTC NZD (Domestic bank transfer) ||
|-
| [https://www.bitfinex.com/ Bitfinex] || BTC USD (Intl wire)|| BTC USD (Intl wire) ||
|-
| [[Bitstamp]] || BTC EUR (SEPA transfer) USD (Intl wire) USD ([[Ripple]]) CHF || BTC BTC (Redeemable code) EUR (SEPA transfer) USD (Intl wire) USD (Ripple) CHF || EUR and CHF deposits converted to/from USD for trading
|-
| [https://bitcoin-24.com Bitcoin-24] || BTC EUR (SEPA transfer) EUR (Credit Card) EUR (SOFORT Überweisung || BTC EUR (SEPA transfer) || SOFORT Überweisung and Credit Card deposits are instant
|-
| [https://BTCMarkets.net BTCMarkets.net] || BTC LTC AUD (Local Bank Transfer) AUD (Westpac Branch Cash Deposit) || BTC LTC AUD (Local Bank Transfer) || <ul><li>Australia's only locally based full service Bitcoin and Litecoin exchange.</li><li>Branch cash deposits (1-3 hours to clear)</li><li>Fast domestic bank transfers (1-2 business days to clear)</li><li>No deposit or withdrawal fees</li><li>No international bank or currency conversion fees</li><li>Australian owned and operated company with local support</li><li>Trading fees from as low as 0.6%.</li><li>[https://BTCMarkets.net BTCMarkets.net]</li></ul>
|-
| [http://BTCTurk.com BTCTurk.com] || BTC TL (Bank transfer) || BTC TL (Bank transfer) || <ul><li> The first Bitcoin exchange to allow trades in Turkish Lira.</li><li> Available in Turkish language. </li></ul>
|-
| [[BTC-E]] || BTC BTC (BTC-e redeemable code) USD (Cash deposit at Post of Russia) USD (Cash deposit at banks including Privatbank, Savings Bank of Russia (Sberbank), RU/UA Terminals, & more) USD (Interkassa) USD (WebMoney - WMZ) USD (Yandex) USD (LiqPay) USD (Perfect Money) USD (QIWI) USD (OKPay) USD (RBK Money) USD (Ditial currencies including НСМЭП (NSMEP), Единый Кошелек (Unified Purse), TeleMoney, & more) USD (International bank wire) EUR (SEPA bank transfer) RUB (QIWI) RUB (LiqPay) RUB (WebMoney-WMR) RUB (BTC-e Redeemable code) RUB (Bank transfer) || BTC BTC (BTC-e redeemble code) USD (Webmoney - WMZ) USD (Perfect Money) USD (LiqPay) USD (QIWI) USD (PayPal) USD (OKPay) USD (Payza/AlertPay) USD (Privat, Privat UAH) USD (Cash deposit into Savings Bank/Sberbank, Telebank, Alfa Bank) USD (BTC-e Redeemable Code) USD (International Wire Transfer) EUR (SEPA bank transfer) RUB (Cash delivery, possible in Moscow) RUB (QIWI) RUB (LiqPay) RUB (WebMoney WMR) RUB (Яндекс.Деньги Yandex) RUB (RBK Money) Cash deposit (into account at Сбербанка России!/Savings Bank/Sberbank, Телебанк (Telebank), and АльфаБанк (Alfa Bank) RUB (Transfer to credit card VISA & MasterCard) RUB (BTC-e Redeemable code) RUB (Bank transfer) || Language: English, Russian. Interkassa can be funded from Webmoney and many other methods. BitInstant Can be funding option includes QIWI, Cyberplat.
|-
| [https://CampBX.com/ CampBX] (CBX) || BTC USD ([[Dwolla]]) USD (P2P bank transfer at Chase, B of A, Wells Fargo and ING. Credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || BTC USD ([[Dwolla]]) USD (ACH Direct Deposit) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li> Security certification from McAfee</li><li> Advanced trading options with AON/FOK/Market</li> <li>STOPLOSS and Short-Selling in Pipeline</li><li> Trading API available</li><li> Wallet API available </li><li> CBX Instant Bitcoin Transfers Feature </li><li> Stoploss / Custom Order Expiry Date/Time </li><li> SMS (Text Message) Notifications </li> <li> Two-Factor Authentication </li> <li> Based in USA - Atlanta </li> </ul>
|-
| [[CoinMKT]] || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (P2P bank transfer at any US bank, credited after three business days). USD (Personal Check) USD (USPS Postal money order, Canada Post money order) || | BTC | LTC | PPC | TRC | NVC | NMC | FTC USD ([[Dwolla]]) USD (USPS Postal Money Order) USD (Domestic bank wire) USD (International bank wire) || <ul> <li>Trade any currency pair</li><li>Fast, web-based ID verification</li><li>Focused on user experience</li><li>Play money trading</li> <li> Based in Santa Monica, CA </li> </ul>
|-
| [[File:e-cointrade.com logo.png|link=https://www.e-cointrade.com/cointrade/content.jsp?language=English&ref=en.bitcoin.it&id=Home]] [https://www.e-cointrade.com/cointrade/content.jsp?language=English&ref=en.bitcoin.it&id=Home e-CoinTrade.com] ([[e-cointrade.com|info]]) || | Deposits: BTC | LTC | FTC | IXC | NVC | MNC | TRC | PPC USD ([[Perfect Money]]) EUR ([[Perfect Money]]) || | Withdrawals: BTC | LTC | FTC | IXC | NVC | MNC | TRC | PPC USD ([[Perfect Money]]) EUR ([[Perfect Money]]) || <ul><li> Focused in '''symplicity''' for the average user.</li><li> Full multilanguage, available in: English, Deutche, Español, Pусский, Français. </li> <li> Automatic trading platform.</li><li> Trade in any combination of the currency pairs.</li><li> Live ''chatbox'' for users.</li></ul>
|-
| [[FYB-SG]] || BTC SGD(Internet Bank Transfer) SGD (Annonymous Cash Deposit at any UOB Cash Deposit Machine in Singapore). || BTC SGD(Internet Bank Transfer) || Based in Singapore
|-
| [[FYB-SE]] || BTC SEK(Internet Bank Transfer) || BTC SEK(Internet Bank Transfer) || Based in Sweden
|-
| [[File:Hit_20.png|20px|link=https://www.hitbtc.com]][[HITBTC]] || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || | BTC LTC EUR (Wire Transfer) USD (Wire Transfer) || <ul> <li>Cutting-edge technology places and matches order in milliseconds</li><li>Two-factor Authentication</li><li>WebSocket subscription for prices and trades</li><li>Asynchronous WebSocket-based trading interface</li><li>FOK and IOC orders</li><li>API</li>
|-
| [https://www.itbit.com itBit] || BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire)|| BTC SGD(Bank Wire/GIRO) USD (Bank Wire) EUR(Bank Wire) || Based in Singapore
|-
| [http://ice3x.co.za iceCUBED] || BTC LTC ZAR (Local and International Bank Transfer) || BTC LTC ZAR (Local and International Bank Transfer) || <ul><li>South Africa's only locally based full-service Bitcoin and Litecoin exchange</li><li>Fast domestic bank transfers (1-2 business days to clear)</li><li>No deposit or withdrawal fees</li><li>No international bank or currency conversion fees</li><li>South African owned and operated company with local support</li><li>Trading fees from as low as 0.6%.</li><li>[http://ice3x.co.za iceCUBED]</li></ul>
|-
| [[Justcoin]] || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || | BTC | XRP | LTC NOK (Domestic transfer) EUR (SEPA/International wire transfer) USD (SEPA/International wire transfer) || <ul> <li>Based in Oslo, Norway</li><li>Two-factor Authentication</li><li>API</li>
|-
| [[Kapiton.se]] || BTC SEK (Bankgiro Bank Transfer) || BTC SEK (Bankgiro Bank Transfer) ||
|-
| [[Kraken]] || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) || | BTC | XRP | LTC | XVN EUR (SEPA transfer) EUR (International bank wire) USD (Domestic bank wire) USD (International bank wire) USD (ACH) || <ul> <li>Legally compliant</li><li>Advanced Stop Orders</li><li>Margin Trading</li><li>Based in San Francisco, CA</li><li>Two-factor Authentication</li><li>API</li>
|-
| [[File:MMB.png|20px|link=https://www.mengmengbi.cn]] [https://www.mengmengbi.cn Mengmengbi (萌萌币)]([https://en.bitcoin.it/wiki/Mengmengbi info)] || BTC LTC PPC NMC DOGE CNY(Local Bank Transfer) || BTC LTC PPC NMC DOGE CNY(Local Bank Transfer) || <ul> <li>Powered by [https://www.anxpro.com ANX] </li><li>Zero Trading Fees</li><li> Instant processing of CNY deposits</li><li> Near realtime processing of CNY withdraways (Mon-Fri)</li><li>Gox compatible Trading API with BTC, DOGE, LTC, PPC, NMC support</li><li>Zero bank transfer fees</li><li>Shared liquidity with ANX, one of the top 10 Bitcoin exchanges in the world</li><li> Multilingual support (English, Traditional Chinese, Simplified Chinese)<li>Two-Factor Authentication</li></ul>
|-
| [[Rock Currency Exchange]] || BTC EUR (SEPA transfer) SLL (Second Life) USD (Dwolla) || BTC EUR (SEPA transfer) SLL (Second Life) USD (Dwolla) ||
|-
| [[VirtEx]] || BTC CAD (cash deposit at Bank of Montreal or ScotiaBank) CAD (Online bill payment) CAD (Wire transfer) || BTC CAD (direct deposit) CAD (Canada Xpress Post Bank Draft send by mail) CAD Payza (formerly AlertPay) ||
|-
| [https://www.virwox.com/ VirWox] || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP (Credit & Debit cards via [[Skrill]]/Moneybookers) USD,EUR,GBP ([http://www.neteller.com NETELLER]) EUR (DIRECTebanking / Sofortuberweisung) USD,EUR,GBP,CHF ([http://www.paysafecard.com PaySafe Card]) EUR (SEPA bank transfer) USD ([[UKash]] vouchers) || BTC SLL (Second Life) ACD (Avination) OMC (OpenSim) USD,EUR,GBP,CHF ([[PayPal]]) USD,EUR,GBP ([[Skrill]]/Moneybookers) USD,EUR,GBP ([http://www.neteller.com NETELLER]) EUR (SEPA bank transfer) || Trading through Second Life Linden Dollars. Variable limits on PayPal and Credit Card deposits.
|-
| [https://www.bitcointoyou.com BitcoinToYou] || BTC BRL USD EUR || BTC BRL USD EUR || Language: Portuguese (português), customer can buy in cash ou bank deposit at HSBC, SANTANDER, ITAÚ, CAIXA, BRADESCO and BANCO DO BRASIL.
|-
| [[MORREX]] || BTC CAD CAD (Online bill payment) CAD (Wire transfer) || BTC CAD CAD (Canada Xpress Post Bank Draft send by mail) CAD ||
|}

==Fixed Rate Exchanges & Others==
For smaller amounts, the options are limited due to bank transfer fees, conversion fees and transaction size restrictions. Options include:

{| class="wikitable"
|-
| Service || Payment Method || Notes
|-
| [https://www.alfacashier.com ALFAcashier] || BTC Bitcoin LTC Litecoin USD PerfectMoney USD LiqPay USD OKPay USD EgoPay USD BTC-E coupon/refill USD (International Bank Wire) EUR (International Bank Wire) RUB (Russian Bank Wire) || Instant exchanger. Language: English, German, Russian, Chinese <ul><li>Cumulative discount system</li><li>Affiliate program</li><li>Fees only 1-3%</li></li>
|-
| [https://www.bestexchangeonline.com Bestexchangeonline.com] || USD PerfectMoney EUR PerfectMoney Cashu Egopay Okpay Bitcoin Webmoney PayPal USD LiqPay RUB || Buy Sell Exchange Bitcoins with the best price. <ul><li>Instant Exchange</li><li>24/7/365 support</li>
|-
| [[File:BitSimpleIcon.png|30px|link=https://BitSimple.com]] [https://BitSimple.com BitSimple.] ([[BitSimple.|info]]) || USD (bank wire) || Don't get goxxed again! We never hold user's bitcoins. Purchased bitcoins will be directly transferred to your personal bitcoin wallet. Stop accepting long delays waiting for funding. We will lock in a rate once you confirm the wire has been sent, and will deliver your purchased coins the same day, usually within an hour.
|-
| [[File:BittyBot-head.png|20px|link=http://BittyBot.co.uk]] [http://BittyBot.co.uk BittyBot] ([[BittyBot|info]]) || GBP (varies person to person) || BittyBot monitors and compares the UK Bitcoin market to help you find the best prices and most reputable traders.
|-
| [https://quickbitcoin.co.uk Quickbitcoin.co.uk] ([[Quickbitcoin|info]]) || GBP (bank transfer) || Buy bitcoins in the UK in under 1 hour from trusted uk seller. Payments by UK bank transfer. No sign up required. [http://www.trustpilot.co.uk/review/quickbitcoin.co.uk See reviews here].
|-
| [https://24change.com 24Change.com] ([[24change.com|info]]) ||
* USD, UAH, RUB, Visa, MasterCard
* C-Coin, eCoin, EgoPay, Payza, Payoneer, EPESE, MoneyGram, OKPAY, WireTransfer, QIWI, Yandex Money, BTC-E code, PayPal, PerfectMoney, Paymer, ePayments, LiqPay, Redpass, WESTERN UNION, C-Gold, Pecunix
* International Banks, Sberbank, Alfa-Bank, Privat24, Svyaznoy Bank, VTB24
||
* Automatic bitcoin and e-currencies buy/sell service
* 24/7/365 fast and reliable e-currencies exchange
* Unlimited reserves
* 15% Affiliate program
|-
|[[File:favicon_b4c.jpg|20px|link=https://bit4coin.net]] [https://bit4coin.net bit4coin.net] ([[bit4coin|info]]) || [https://www.sofort.com SOFORT banking] SEPA transfer (EUR) International bank transfer || Buy bitcoin with gift vouchers: Order bit4coin gift vouchers online at [https://bit4coin.net bit4coin.net] and get them shipped to your door, ready to redeem into bitcoins. No registration required. Perfect for own use or as gift.
|-
| [[File:BitQuickco.png|20px|link=https://www.bitquick.co]] [https://www.bitquick.co BitQuick.co] ([https://en.bitcoin.it/wiki/BitQuick.co info)] || Cash Deposit or SEPA Transfer Only (International) || Connects buyers to sellers around the globe via bank cash deposit or SEPA transfer. No registration required. Instant deposit to any bitcoin address after cash deposit or SEPA transfer receipt received.
|-
| [https://www.cryptxchange.com Cryptxchange] || USD (Cash Deposit) USD (Wire Transfer) CAD (Cash Deposit) CAD (Wire Transfer) You may make cash deposits at any Chase Bank Internationally (ARS, GBP, EUR, AUD, BRL, CLP, COP, EGP, KYD, SAR, CNY, AED, JPY, INR || A multinational US based cryptographic currency exchange. No login or account creation required. No identity verification required. Exquisite customer service. Average transaction time under two hours depending on the time of the day. One of the most anonymous and reliable exchanges on the net. We use SSL & AES-256 military grade encryption for all communication
|-
| [https://www.getbitcoin.com.au Bitcoin (Australia)] || AUD (Bank Deposit) || Bitcoin (Australia) / [https://www.getbitcoin.com.au www.getbitcoin.com.au] offers rapid transfer at low rates.
|-
| [[File:BIPS.gif|20px|link=https://bips.me]] [https://bips.me BIPS] ([[BIPS|info]]) || CAD (Cash deposits in Canada Any Currency (Wire Transfer - Any Country) USD || <ul><li>DK-based</li><li>[https://github.com/BitcoinInternetPaymentSystem BIPS GitHub]</li><li>[https://bips.me/connect/BitcoinInternetPaymentSystemAPI.pdf REST API]</li></ul>
|-
| [http://indo-bitcoin.com Indo-Bitcoin.com] || IDR Mandiri (Cash deposit and wire transfer) IDR BNI (Cash deposit and wire transfer) IDR BCA (Cash deposit and wire transfer) IDR BRI (Cash deposit and wire transfer) || Beli Bitcoin di Indonesia. Lowest fees, max. 30 minutes per transfer, 24 hours 7 days. No verification required.
|-
| [https://Bitcash.cz/market Bitcash.cz] ([[Bitcash.cz|info]]) || CZK domestic wire, EUR with SEPA || Live Auction Rates, person-to-person contract fulfillment
|-
| [https://www.bitbrothersllc.com BitBrothers LLC] || Bank Transfer/Cash/Moneygram || If you are looking for an extremelly simple and anonymous way to purchase bitcoins, this is the best place to do it. We are so sure you will be a repeat customer that we are willing to provide discounts for first time buyers. Best Customer service in the industry.
|-
| [https://truckcoin.com TRUCK COIN] || Bank Transfer/Paypal/Wester Union/Moneygram/Cash/any method with any currency || There is another anonymous way to purchase bitcoins, this is the best safety and anonymous way.
|-
| [https://bitcointalk.org/index.php?topic=237164.0 Bitcoin-Brokers (USA)] || Cash deposit || At major banks like Bank of America, Chase, Wells Fargo, PNC, Citibank. No ID, No registration. Immediate fundings.
|-
| [https://bitcoini.com Bitcoini.com (Bulgaria, Romania)] || BGN (Bank deposit, Cash, EasyPay, Post, Econt) RON (Bank deposit) USD (Western Union, MoneyGram) || Fast and secure way to buy/sell bitcoins. Live support
|-
| [http://www.bitcoinbymobile.com BitcoinByMobile.com] || Mobile Phone (Premium SMS)|| Buy bitcoins instantly using just your mobile phone. No registration or personal financial information needed. Available in: Austria, France, Germany, Luxembourg, Netherlands, Portugal, Spain, and United Kingdom
|-
| [http://www.btc-dealer.com BTC-Dealer] || Credit Card through Liqpay || No signup required. Instant deposit to any bitcoin address
|-
| [https://moneypaktrader.com MoneypakTrader.com] ([[MoneypakTrader.com|info]]) || Moneypak (USD) <======> BTC BTC <======> Moneypak (USD) ReLoadit, etc. (USD) <====> BTC BTC <======> ReLoadit, etc. (USD) || Pays a bonus over market for your BTC Charges a fee over market for your Moneypak, etc. Only accepts codes from original purchaser Attempts to have regular customers processed within 24 hrs Available for discussion via TorChat
|-
| [https://bitbargain.co.uk BitBargain] ([[BitBargain|info]]) || GBP || Quick transactions via Bank Transfer (fast payments support only), Pingit and Ukash. Deals happen between buyer and seller.
|-
| [https://bittylicious.com Bittylicious] ([[Bittylicious|info]]) || GBP, EUR, ZAR || Near instant transactions via UK Bank Transfer (Faster Payments only). No sign up required but can buy more if registered.
|-
| [http://btc.pt BTC.pt] || EUR (Multibanco) || Anonymous transactions. Pay the amount on any Portuguese ATM(MB) or homebanking service, we'll deduce our fee and buy the coins for you at market rate and send them very fast to your wallet. Only available in Portugal.
|-
| [https://www.bitcointrader.com.au Bitcointrader] ([[Bitcointrader|info]]) || AUD (Cash deposit) || Lowest fee in Australia! Only 5%. Buy and sell bitcoins quickly and easily! Cash deposit at any Westpac Bank and National Australia Bank branch in Australia.
|-
| [https://blockchain.info/wallet/deposit-methods Blockchain] ([[BlockChain.info|info]]) || USD, GBP, EUR, BRL, AUD, CAD, JPY, EUR, CHF, PLN, CZK, RON, RUB, SEK, NOK, DKK || Purchased through [[BitInstant]] (U.S., Brazil, and Russia), Barclay's Pingit or Bank Transfer (GBP), Instant Bank Transfer (EUR) or SMS or premium phone call from a mobile.
|-
| [[BitInstant]] || USD (Cash deposit at banks, 7-11, Walmart, CVS, Moneygram locations) USD (Dwolla) BRL (Cash deposit at Banco Rendimento or through Boleto) RUB (Cash deposit through Qiwi or Cyberplat) || Deposit cash at 700,000 locations around the world and have your Bitcoins within 30 minutes. Absolute fastest and easiest way to buy Bitcoins.
|-
| [[Coinapult]] || Use [[BitInstant]] to use cash to purchase bitcoins sent to e-mail or SMS. Choose "Bitcoin to e-mail" service and enter either e-mail or SMS. ||
|-
| [https://www.ripio.com/ Ripio] || Buy bitcoin in Argentina using cash payment networks like PagoFacil, RapiPago, etc. || A good option for bitcoin beginners transactions take usually less than 24 hours and places for doing the payments are all over.
|-
| [http://coinbase.com/ Coinbase] || Buy and sell bitcoin by connecting a U.S. based bank account. Users need the account and routing numbers that can be found on a check to get started. || Instant verification available for new accounts. Purchased bitcoin can be held in Coinbase's online wallet. Generally considered a good option for U.S. based bitcoin beginners.
|-
| [[Coin-Daddy]] || Buy bitcoins with PayPal and OKPAY || No verification needed. Customer just needs to pay with PayPal, leave the Wallet address and then he receives his coins, or pays via OKPAY. Available for purchase are: Bitcoins, Litecoins and PPCoins.
|-
| [http://BitcoinIsrael.co.il BitcoinIsrael.co.il] || ILS (NIS - New Israeli Shekel)
* via bank transfer
* via Bank HaDoar /Post Office Bank (instant transfer)
* via In Person
|| Buy and sell your Bitcoins within minutes in person. Get "same day" service using Bank HaDoar /Post Office Bank. Get "next day" service using Bank Transfer.
|-
| [[Bitcoin Nordic]] ||
*EUR/DKK (SEPA and wire transfer)
*USD, EUR, GBP, DKK, SEK, NOK (Cash or check in the mail)
*AED, DZD, EGP, IQD, ILS, JOD, KWD, LGP, LYD, MRO, MYR, NGN, OMR, PKR, QAR, SAR, TRL, TZS, TND, YER ([[CashU]] card)
*MXN, EYU, BOB, BRL, COP, SYP, MAD, GHC, ZAR, CNY, CAD, and more ([[UKash]] voucher)
|| For UKash, redeemed through CashU account.
|-
| [[Spend Bitcoins]] || AUD (Cash deposit) || AUD cash deposit at NAB, Commonwealth Bank, Westpac and ANZ.
|-
| [https://bitcoinmylife.com/jml/buy-bitcoins BitcoinMyLife] ([[BitcoinMyLife|info]]) || EUR (SEPA bank transfer) || Simple and Safe. Pay first transaction fee with Twitter or Facebook post.
|-
| [[bitcoin.de]] || EUR (bank wire) EUR (SEPA bank transfer) EUR ([[Skrill]]/Moneybookers) || Varies (person to person) 0.01 free Bitcoins for every new user eWallet Affiliate program Language: German, Englisch News
|-
| [https://www.BitcoinZAP.com BitcoinZAP] || SEPA bank transfer - EUR International bank transfer - EUR, USD Western Union MoneyGram Cash (in the mail) - EUR, USD, CAD, GBP, HKD, JPY, PLN, AUD, CHF, CZK, DKK, HUF, MOP, SEK, NOK || Bitcoins usually delivered in less than 24 hours after payment is received
|-
| [[BTCX.se]] || SEK || Transfer to and banks in Sweden.
|-
| [[BTC China]] || || Converted to CNY for trading.
|-
| [[bitcoincambodia.com]] || USD (Cash, possible to pay everywhere in Cambodia) || You can buy Bitcoins for USD in Cambodia.
|-
| [[BitMarket.co]] || COP (Colombian Peso) || Varies (person to person)
|-
| [[bitcoin-otc|#bitcoin-otc]] || Person-to-person, various methods || IRC trading marketplace will usually have people willing to deal for small and larger amounts using various payment methods, including [[PayPal]], [[Dwolla]], [[Linden Dollars]], etc.
|-
| [[Canadian Bitcoins]] || CAD (Cash - XpressPost or Dropoff) USD (Cash - Courier: UPS, FedEx, etc.) || For dropoff, office in Ottawa.
|-
| [http://coinrepublic.com/buy-sell-bitcoins-singapore/ Coin Republic] || SGD (Singapore Dollar)|| Payment via local bank transfer.
|-
| [https://dgtmkt.com Dgtmkt] ([[Dgtmkt|info]]) || Malaysian Ringgit (MYR) Online bank transfers (Maybank2U, CIMB, MEPS, etc) E-vouchers (Web Cash, Mobile Money) || Bitcoin merchant for Malaysians,. dealing in Malaysian Ringgit. Fully automated immediate transfers. https://dgtmkt.com
|-
| [https://www.dagensia.eu Dagensia] ([[Dagensia|info]]) ||
* SEPA Bank Transfer (EUR)
* ATM card (EUR, USD)
* Sofort Banking (EUR)
* Direct Banking (EUR)
* Payza (official Exchanger)
* EgoPay, c-gold
* BUY AND SELL BITCOINS
|| Dagensia allows you to Buy and Sell Bitcoins and to store Bitcoins securely. You can get your first Bitcoin today, or you can start accepting Bitcoins directly into EUR or USD balance and ATM card. Sell and buy your Bitcoins through Wire, or SEPA EUR transfer, Direct Banking, ATM Cards. '''Fully licensed exchanger''', supervised by Czech National Bank
|-
| [[Lilion Transfer]] || Bank Transfer: USD, AUD, CAD, JPY, EUR, CHF, GBP, PLN, CZK, RON, BGN, HRK, RUB, SEK, NOK, DKK, LTL, LVL Perfect Money Monetto OK Pay Cosmic Pay Pecunix C-Gold E-Pay Payments PayPal|| 122 accounts worldwide. Support in 30 languages
|-
| [[Nanaimo Gold]] || Western Union money transfer Moneygram money transfer Cash in the mail || Digital Currency <--> Bitcoin exchange is automated For cash in the mail send USD, EUR, CAD, or GBP. Canada mailing address.
|-
| [[Bitcoin Argentina]] || Cash: ARS, BRL, USD Bank transfer: ARS || No exchange fees!
|-
| [[Bitcoin.com.es]] || EUR (bank deposit) || Bank transfer or cash deposits at OpenBank in Spain.
|-
| [[Bahtcoin]] || Cash, Webmoney || Will cash out to Thai mobile and gaming prepaid cards as well.
|-
| [http://bitcoin.in.th Bitcoin Thailand] || THB: Cash/Bank Deposit || Same day service.
|-
| [[BitPiggy]] || AUD (Australian Dollar)|| Payment via bank transfer.
|-
| [[bitcoin.local]] || Person-to-person, various methods ||
|-
| [[bcchanger.com]] || Person-to-person via PayPal, [[Skrill]]/Moneybookers and other e-currency platforms ||
|-
| [[Bitcoil]] || ILS (bank transfer) ||
|-
| [[File:BXlogoSM.jpeg|link=http://bitXoin.com]] [http://bitXoin.com bitXoin] ([[bitXoin|info]]) || AUD (Cash deposits) || Fast transaction processing, market rates with low commissions and no fees.
Contact BUYbulk@bitXoin.com for special rates on BUY BTC transactions over $10,000 and SELLbulk@bitXoin.com for SELL BTC transactions over BTC50
https://bitXoin.com/
|-
|[[btcnow]] || USD (OKPay, Dwolla) || bitcoins transferred instantly
|-
| [http://localbitcoins.com LocalBitcoins.com] || Varies (person to person) Physical cash locally [https://localbitcoins.com/buy-bitcoins-online/cash-deposit/ Cash deposit] [https://localbitcoins.com/buy-bitcoins-online/okpay/ OKPay] [https://localbitcoins.com/buy-bitcoins-online/paypal/ PayPal] [https://localbitcoins.com/buy-bitcoins-online/dwolla/ Dwolla] [https://localbitcoins.com/buy-bitcoins-online/sepa-eu-bank-transfer/ SEPA Bank transfer] || Find your local bitcoin dealer, or purchase safely online using escrow! With dynamic pricing with equations. eWallet 
[https://localbitcoins.com/affiliate/ Affiliate program] 
[https://localbitcoins.com/api-docs/ API]
|-
| [https://www.bitbuy.nl BitBuy] || EUR (iDEAL) || Buy bitcoins instantly with iDEAL from the Netherlands. User will get price updates during the payment process.
|-
| [https://www.happycoins.com HappyCoins] || EUR (iDEAL and SEPA bank transfer) || Buy and sell Bitcoins. Use the Dutch iDEAL payment system to receive Bitcoins within minutes. Prices are based on near real-time exchange prices.
|-
| [[ECurrencyZone]] || BTC INR (Cash deposit of Indian rupee) BDT (Cash deposit of Bangladeshi taka) NPR (Cash deposit of Nepalese rupee) MYR (Cash deposit of Malaysian ringitt) SGD (Cash deposit of Singaporean dollar) SGD (Net/Bank transfer) USD (Western Union, Moneygram, Citibank global funds transfer, OKPay) USD || Bank transfer considered at all locations with prior approval.
|-
| [[BitCoinVend]] || BTC USD (PayPal) || bitcoinvend@gmail.com, market variable with commission, quote based, verified paypal account with anti scammer verification
|-
| [[Bitcoins In Berlin]] || EUR (Cash in-the mail) EUR (Cash in-person trade) EUR (SEPA bank transfer) EUR (Western Union) || Cash in-the-mail is to a Berlin P.O. box. In-person trade is in Berlin.
|-
| [https://www.lojabitcoin.pt Loja Bitcoin] || EUR (ATM/Multibanco) EUR (bank transfer) EUR (money order) EUR (cash) || Several payment methods like the Portuguese "Multibanco" (ATM), "Vale postal CTT" (money order by mail), bank transfer and cash (in some locations) - Portugal only at the moment
|-
| [[Mang Sweeney]] || PHP (Cash) PHP (Cash deposit at bank) || Languages: English, Pinoy. PHP [https://localbitcoins.com/accounts/profile/mangsweeney cash trade method] in metro Manilla, Philappines.
|-
| [[mercaBit.eu]] || EUR (Ukash) EUR (Hal-Cash) EUR (Neteller) || Buy bitcoins with ukash and more
|-
| [http://buyBTC.cz buyBTC.cz] ([[buyBTC.cz|info]]) || CZK (Domestic bank transfer) EUR (Bank transfer) || Buy bitcoins from the Czech Republic.
|-
| [http://bitonic.nl Bitonic.nl] || EUR (iDeal) || Buy bitcoins instantly from the Netherlands.
|-
| [http://www.dragons.tl Dragon's Tale] ([[Dragon's Tale|info]]) || Credit card (except in the U.S.) || Purchase bitcoins through this MMO casino with credit card, withdraw bitcoins (though a fee applies if withdrawn and no casino play.)
|-
| [https://buybitcoinbycreditcard.com buybitcoinbycreditcard.com] || JPY (Credit Card) || Buy bitcoins instantly with your credit card. No registration required. This site accept from the world.
|-
| [[OKPAY]] || BTC USD, EUR, GBP, RUB, CHF etc (Bank Wire Transfer) EUR (SofortBanking) USD, EUR (Liqpay) USD (CashU) USD, EUR, GBP, RUB, CHF etc (UWCFS) USD, RUB, UAH (Wallet1) RUB (Yandex Money) RUB (EasyPay) USD, EUR (CONTACT) USD, EUR (Migom) USD, EUR, CZK (Money Polo) USD, EUR (Intel Express) USD, EUR (Western Union via Exchange Partners) USD, EUR (Moneygram via Exchange Partners) USD, EUR (via Exchange Partners) || Support of 19 world currencies, 15 languages.
|-
| [http://bitplaats.nl Bitplaats.nl] || EUR (iDEAL) || Buy bitcoins instantly, pay with iDEAL. Buy bitcoin from the Netherlands.
|-
| [http://artabit.com artaBit.com] ([[artaBit|info]]) || IDR || Buy bitcoins in Indonesia.
|-
| [https://www.bitsofgold.co.il BitsOfGold.co.il] ([[Bits_of_Gold|info]]) || ILS || Buy bitcoins from Israel.
|-
| [http://www.rugatu.com rugatu.com] || EUR || Buy bitcoins with Neteller.
|-
| [http://wmeng.exchanger.ru WMeng.Exchanger.ru] || Buy bitcoins with:<ul><li>USD</li></li>EUR</li></li>RUB</li></li>UAH</li></li>Belorussian Roubles</li></li>Vietnamese Dongs</li></ul> Sell bitcoins for:<ul><li>USD</li></li>EUR</li></li>RUB</li></li>UAH</li></li>Belorussian Roubles || The exchange service of WebMoney Transfer system. WMT has a special units named WMX to operate BTC, which can be exchanged and/or withdrawn
|-
| [[WM-Center]] || USD (Western Union, MoneyGram) EUR RUR THB UAH || 24/7/365 support English, Spanish, Russian versions Fast reliable service since 2005
|-
| [https://www.bitgo.co.il/ bitgo.co.il]|| ILS || Buy/Sell bitcoins in Israel.
|-
| [http://www.belgacoin.com Belgacoin]|| EUR, USD, BGN, CHF, CZK, DKK, EEK, GBP, GIP, HRK, HUF, ISK, LTL, LVL, NOK, PLN, RON, SEK || The easiest way to buy Bitcoins in Europe. It is fast, secure and cheap. No registration required!
|-
| [https://bittiraha.fi/content/bittip%C3%B6rssi-osta-ja-myy-bitcoineja Bittiraha.fi]|| EUR (SEPA transfer) || Reliable Finland based exchange operated since 2012. 1-2 day deposits and 1-3 day withdrawals. No registration required!
|-

| [https://bitalo.com Bitalo] ([[Bitalo|info]]) || Varies (person to person) [https://localbitcoins.com/buy-bitcoins-online/sepa-eu-bank-transfer/ SEPA Bank transfer] || Purchase Bitcoins directly from another person. eWallet
|}

==Direct / Bulk Buying==

Liquidity providers for transactions of size ($10,000 or larger).

{| class="wikitable"
|-
| Service || Type || Payment Method || Notes
|-
| [https://www.bitbrothersllc.com BitBrothers LLC] || Direct purchases up to $10,000 || USD (Bank Deposit at a Chase bank OR cash orders including cashiers checks and money orders) || BTC || Best customer service in the industry and quickest transaction speeds.
|-
| [http://bitcointalk.org/index.php?topic=87094.0 BitPay] ([[BitPay|info]]) || Direct purchases, $10,000 USD and higher || USD (Bank wire, domestic or international) || BTC || Contact for other payment methods.
|-
| [https://truckcoin.com TRUCK COIN] || Directly and Easily || USD, EUR, SGD, VND and more (Bank Wire, Western Union, Paypal, face-face) || BTC || Contact for other method directly with sellers or buyers.
|}

==Other Financial Services==

{| class="wikitable"
|-
| Service || Type || Payment || Settled || Notes
|-
| [https://giftcarddrainer.com GiftCardDrainer.com] || Transfer gift card balance to Bitcoin address or conventional account. || BTC, USD || || Customers can redeem their Visa, MasterCard, American Express or Discover gift card for Bitcoins or payment into their personal bank or PayPal account. 5.7% + $0.57 fee.
|-
| [http://www.indx.ru/?lang=en-US INDX] || Stock market, where BTC are also traded || - || - || Trader`s account can be withdrawn with BTC or with USD via WebMoney.
|-
| [[MPEx]] || Buy / Sell / Exercise CALLs / PUTs, American style. 52 strikes offered (by .5), current month + 2. No shorting available yet.|| BTC || BTC || Transactions encoded via amt. Must use non-rounding client (0.3.24 or later)
|-
| [https://vircurex.com/ Vircurex] || Buy / Sell Options Loan / Borrow || BTC, NMC, LTC, DVC, GG, I0C, IXC, SC || BTC, NMC, LTC, DVC, GG, I0C, IXC, SC ||
|}

==Physical Bitcoins==

Physical Bitcoins are bearer tokens that have an embedded redeemable digital bitcoin value if torn open. While they are somewhat expensive if bought purely for the digital bitcoins, they are relatively easy to get, because they can be purchased with PayPal or credit card - payment methods typically not accepted for pure digital bitcoin purchases.

{| class="wikitable"
|-
| Service || Type || Payment || Notes
|-
| [https://www.casascius.com Casascius.com] || Casascius Physical Bitcoins || BTC ||
|-
| [https://btcstore.eu BTCstore.eu]|| BTC Store Paperwallets, Casascius and Recalescence Physical Bitcoins reseller || BTC, EUR (SEPA bank transfer), Finnish online banks ||
|}

==Exchange Directories==
* [http://bitcoinx.io/ BitcoinX.io] Peer-to-Peer Bitcoin Reviews
* [http://howtobuybitcoins.info/ HowToBuyBitcoins.info]
* [http://wheretobuycryptocoins.com WhereToBuyCryptocoins.com]. Shows exchanges, markets, faucets, sites to spend cryptocoins and more.

==See Also==
* [[:Category:Digital_currencies|Digital Currencies]]
* [[Selling bitcoins]]
* [[Secure Trading]]
* [[Bitcoin Ladder]]
* [[:Category:Local|Local]] exchanges

[[Category:Exchanges]]
[[Category:Introduction]]
[[zh-cn:购买bitcoins]]
[[ru:Приобретение биткойнов]]