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• Bitcoin
  ...egal precedent about new currency systems, and because they "generally don't endorse any type of product or service".<ref>{{cite web ...abase became larger, users would desire applications for Bitcoin that didn't store the entire database on their computer. To enable this, the blockchain
  45 KB (6,310 words) - 18:12, 15 June 2022
• Protocol documentation
  ...coordinates of a point on the curve or in compressed form given as <sign> <x> where <sign> is 0x02 if ''y'' is even and 0x03 if ''y'' is odd. ...le ECDSA private key. The actual record saved with inputs and outputs isn't necessarily a key, but a ''script''. Bitcoin uses an interpreted scripting
  59 KB (8,414 words) - 18:08, 30 July 2021
• Securing your wallet
  In the case that your current wallet hasn't been protected adequately (e.g. put online with a weaker password): Note that you ''don't'' need to be running the latest major client version: some clients, includi
  24 KB (3,885 words) - 22:09, 17 June 2020
• Privacy
  * Broadcast on-chain transactions over [[Tor]], if your wallet doesn't support it then copy-paste the transaction hex data into a web broadcasting ...ctions are often called the transaction graph. Alone, this information can't identify anyone because the addresses and transaction IDs are just random n
  159 KB (24,866 words) - 08:59, 31 December 2023
• Block hashing algorithm
  ...hashed only indirectly through the Merkle root. Because transactions aren't hashed directly, hashing a block with 1 transaction takes exactly the same $x='';
  6 KB (947 words) - 17:55, 20 February 2021
• Weaknesses
  ...new wallet is no longer backed up. On the upside, non-technical users won't find their wallets drained from security compromises they believed they had ...difficult by only making an outbound connection to one IP address per /16 (x.y.0.0). Incoming connections are unlimited and unregulated, but this is ge
  19 KB (3,011 words) - 13:44, 30 October 2023
• Bitcoin Core 0.11 (ch 3): Initialization and Startup
  ...implies a -rescan, thus the code will set the -rescan flag=true if it isn't already. Spawn X threads for the Script-checking engine. (Default=0, meaning use all availab
  12 KB (1,879 words) - 12:54, 27 June 2020
• Bitcoin Core 0.11 (ch 2): Data Storage
  ...being synonymous with the active chain (an uninterrupted, linear chain of X blocks starting with the genesis block and continuing to the current tip), 't' + 32-byte transaction hash -> transaction index record. These are optional
  25 KB (4,068 words) - 12:54, 27 June 2020
• Myths
  == Bitcoins don't solve any problems that fiat currency and/or gold doesn't solve == == Bitcoins are worthless because they aren't backed by anything ==
  34 KB (5,321 words) - 20:21, 30 August 2022
• Tor
  ...oject.org/download/download.html.en#warning list of warnings]. ''Tor doesn't magically anonymize all your traffic just because you install it.''<br /> .... Tor must already be running for this to work, otherwise the programs won't be able to use the internet. Note that HTTP proxies '''cannot''' be used to
  15 KB (2,499 words) - 05:55, 26 August 2022
• Tonal Bitcoin
  * TBC is mined together with BTC - unlike ordinary merged mining, you don't get BTC plus TBC, just one or the other at your choice. s = "%x" % n
  9 KB (1,334 words) - 23:59, 3 May 2017
• BIP 0020
  amountdecimal = *digit [ "." *digit ] [ "X" *digit ] amounthex = "x" *hexdigit [ "." *hexdigit ] [ "X" *hexdigit ]
  9 KB (1,246 words) - 17:59, 24 September 2019
• Mining rig
  | Total || (Approx: $1.1755 /Mhash) || || $285 + s/h/t ...DDR5-2DVI-HDMI-DisplayPort-PCI-Express-Video-Card superbiiz] || $339 ($113 x 3)
  14 KB (2,006 words) - 18:25, 10 December 2015
• OpenSourceEncryptionSoftware
  ...hes it, adding the specified salt. The salt should be random, but it mustn't change. ...syntax for '''ccrypt''' is a bit simpler than ''openssl'' because it doesn't require the user to select an encryption algorithm or name the output file,
  7 KB (1,116 words) - 23:55, 3 July 2013
• BIP 0350
  return [ord(x) >> 5 for x in s] + [0] + [ord(x) & 31 for x in s] ...mple, if the witness version symbol is not an error location, and it doesn't correspond to the specification used (0 for Bech32, 1+ for Bech32m), that r
  26 KB (4,009 words) - 15:16, 5 June 2023
• BIP 0045
  Ryan X. Charles <ryan@bitpay.com> even if the earlier ones don't have transactions
  9 KB (1,520 words) - 13:01, 12 October 2019
• How to easily type the circled B symbol on a Mac
  You can just copy/paste them if you aren't sure what they mean. This sets up MacOS X to recognize Option + b as the lowercase encircled b character ⓑ and Opti
  827 bytes (136 words) - 12:29, 28 August 2012
• Wallet protocol
  * Don't require polling (for example, broadcast events for new transactions, or cha * application/x-www-form-urlencoded (required)
  15 KB (2,054 words) - 03:35, 20 August 2011
• Why a GPU mines faster than a CPU
  ...with the rendering of 3D graphics and visual effects so that the CPU doesn't have to. ...example, the translucent windows in Windows 7, or technologies like Mac OS X's Quartz, which powers the Aqua desktop and its beautiful, water-like graph
  10 KB (1,680 words) - 16:05, 8 January 2013
• Contract
  ...Bitcoin to form agreements with people via the block chain. Contracts don't make anything possible that was previously impossible, but rather, they all ...ree to put my money in, as long as everyone puts their money in, but I don't care what's done with the output". This mode allows others to update the tr
  34 KB (5,809 words) - 02:31, 29 September 2023
• P2SH²
  ...xed up, and squeezed together (compressed) to produce something that doesn't look like the original but which still uniquely identifies it. ...ver, when you pay Bitcoins to an address (hash), full nodes and miners don't perform any checks to ensure you or someone else has a copy of the public k
  11 KB (1,738 words) - 07:11, 6 January 2018
• Base58Check encoding
  // - Don't want 0OIl characters that look the same in some fonts and // - E-mail usually won't line-break if there's no punctuation to break at.
  7 KB (1,076 words) - 22:03, 28 October 2021
• Zero Knowledge Contingent Payment
  So— the advice is that you shouldn't use a password alone, you should require a signature and a password. But t ...) be a complicated computer program. For some H(X)=Y you want to know some X that gives you a particular Y.
  7 KB (1,240 words) - 11:17, 8 April 2020
• Secp256k1
  ...png|thumb |This is a graph of secp256k1's elliptic curve ''y² = x³ + 7'' over the real numbers. Note that because secp256k1 is act by the sextuple T = (''p,a,b,G,n,h'') where the finite field F''_p'' is defined by:
  3 KB (501 words) - 00:14, 24 April 2019
• In Person Traders
  ...le who will provide a PGP-Key for communication. I'll help you, if you don't have one. Check out https://localbitcoins.com/ad/1362/buy-bitcoins-with-cas ...la for the fee in EUR is 1+x*(0.005+0.04/(ln(x/1000+2.8)**2.5)) :-), where x is in EUR). Will trade up to a few thousand EUR. Large deals will take some
  5 KB (833 words) - 08:55, 31 May 2013
• Thin Client Security
  ...o called "confirmations"), all of which are well-formed. Thin clients don't verify the preceding blocks, they use the number of confirmations (whether ...and verify the block chain from some other node initially, this change isn't costless.
  9 KB (1,445 words) - 08:20, 22 May 2018
• List of address prefixes
  ...nparams.cpp#L250-L252</ref><ref>https://github.com/bitcoin/bitcoin/blob/26.x/src/kernel/chainparams.cpp#L516-L518</ref> |S or T
  6 KB (935 words) - 21:13, 7 January 2024
• MtGox/API/HTTP
  ...ong as your tonce value is unique and is within +/-10secs of now, it doesn't need to be incremental $req->content_type('application/x-www-form-urlencoded');
  8 KB (1,214 words) - 16:06, 18 May 2013
• MtGox/API/HTTP/v0
  ...ll be 1 char longer) with the amount of the INVALID portion. (that you can't afford) ...place a tx on mtgox, we try to broadcast it, but if after 2 hours it hasn't appeared in the blockchain, it'll appear in this API
  9 KB (1,334 words) - 11:34, 12 April 2013
• Dominant Assurance Contracts
  ...ure transactions, nLockTime and transaction replacement which means it won't work until these features are available on the Bitcoin network. ...h of n contributors if X BTC are not raised by date D, or to pay nY BTC if X BTC are raised and the vendor fails to produce the good to the satisfaction
  3 KB (511 words) - 18:32, 6 March 2012
• Proof of Stake
  ...=96854.0 Bounty Thread]). Because creating forks is costless when you aren't burning an external resource Proof of Stake alone is considered to an unwor ...oins. The authority to send coins is determined by two positive constants, t and k. The following txn rule limits the stake signing keys' spending autho
  31 KB (5,060 words) - 07:40, 26 September 2022
• BIP 0032
  ...sequence using SEC1's compressed form: (0x02 or 0x03) || ser₂₅₆(x), where the header byte depends on the parity of the omitted y coordinate. ...is is ser₃₂(i) for i in x_i = x_par/i, with x_i the key being serialized. (0x00000000 if master key)
  27 KB (4,535 words) - 16:56, 24 April 2024
• BitMinter
  ...-based mining client had to be run from the command line. Most people didn't know what a command line was. The original idea for Bitminter was for an ea ...alternative with easy-to-use mining software for Windows, Linux and Mac OS X.
  4 KB (616 words) - 12:44, 3 July 2021
• P2Pool code documentation
  ...a "tracker" and loads know shares from files in data/bitcoin/sharesX where X is a number. ...elevant to P2Pool and that the client has control over (i.e. its value isn't fixed by the protocol rules).
  12 KB (1,917 words) - 22:38, 6 May 2014
• BFGMiner
  * Watchdog thread to restart idle threads but not crash machine if they don't respond * X-Reject-Reason support
  4 KB (559 words) - 01:28, 1 June 2015
• BIP AbstractJTAGProtocol
  ** <tt>01</tt> to <tt>07</tt> -- Don't do last N bits of data ** <tt>e50x</tt> -- watch/poll command, with up to X concurrent watches
  6 KB (928 words) - 21:03, 4 August 2012
• How to import private keys
  read -s -p 'Type your passphrase: ' x bitcoind walletpassphrase "$x" 120 # Do not set the timeout too long or too short.
  7 KB (1,090 words) - 19:39, 19 August 2019
• Vanitygen
  ...ithub.com/samr7/vanitygen GitHub]. Includes Makefiles for Linux and Mac OS X. The latest source doesn't work properly for high-end AMD cards (7XXX and greater). The solution is to
  9 KB (1,242 words) - 20:11, 11 March 2024
• Proof of burn
  ...ryone else should find it cheap to verify that it has been done.) It doesn't need to be the case that real resources are consumed in the real economy. ...burnt, at the time of burning. They've been sent to an address which doesn't stand out from any other. It's only later, when a miner who burned them ear
  32 KB (5,261 words) - 12:10, 15 January 2018
• Hardware wallet
  # '''Malware swaps recipient Bitcoin addresses''': a hardware wallet won't protect you from being tricked into sending Bitcoin to the wrong address. F ''See also [[Hardware wallet#Trezor Model T|Trezor Model T - next-generation cryptocurrency hardware wallet]]''
  36 KB (5,332 words) - 08:43, 10 December 2023
• Mining software
  | Mac OS X ||{{Yes|hmbrw}}||{{Yes|Java}}||{{Patch|jar}}||{{Patch|src}}||{{Patc | SSE4 (x86_64) || {{Yes}} || {{No}} || {{No}} ||{{No|2.x}}|| || {{No}} || {{No}} || {{No}} || {{No}} || || {{N
  29 KB (2,915 words) - 05:59, 22 April 2023
• BIPS
  Motorola Moto X* BIPS didn't charge merchants for accepting Bitcoin online or with the point of sale as
  3 KB (493 words) - 09:11, 26 September 2022
• Complete detail of how Bitcoin works
  * Asserts Satoshi is Japanese. We don't know that. * Humans didn't just choose gold just because it was scarce. We chose gold for a whole host
  6 KB (986 words) - 21:49, 14 March 2015
• Hashcash
  ...perty). You can compute y from x cheaply y=H(x) but it's very hard to find x given only y. A full hash inversion has a known computationally infeasible ...r work O(sqrt(2^k))=O(2^(k/2)) because you can proceed by computing many H(x) values and storing them until you find a matching pair. It takes a lot of
  17 KB (2,742 words) - 16:33, 8 April 2022
• Backing up your wallet
  # Save it somewhere you won't lose it (like your Wuala, Dropbox, Strongspace or whatever) Don't forget to mount your image before using Bitcoin and unmount it after quitti
  10 KB (1,627 words) - 22:08, 17 June 2020
• Avalon1
  Packaged Chip Size: 7 mm x 7 mm Chip Size : X = 3.9760 ,Y = 4.0560 mm
  29 KB (4,203 words) - 22:45, 13 April 2015
• RIPEMD-160
  ...he next block (if there is one) or added to the hash register is there isn't. The sub block can be varied by the design of a nonlinear function, the ord t := rotleft(s[j]) (aLeft + f(bLeft, cLeft, dLeft) + X[r[i]]) + eLeft
  5 KB (687 words) - 23:32, 30 June 2014
• Colored Coins
  ...or example, a 100 seat movie theater can issue 100 units of a "watch movie X at time Y" asset and promise to redeem each unit for a right to enter a cer ...n] which was created By [http://www.ChromaWay.com ChromaWay]. EPOBC doesn't use op_return to store metadata on the blockchain
  15 KB (2,058 words) - 01:44, 13 May 2020
• Colorcore
  Also, you don't need to buy any intermediary coin (like XCP) since [[Colored Coins]] work d Finally a way to manage a truly decentralized crowdfuding campaign. You don't have to trust a complex and limited exchange protocol, the "distribute" fea
  7 KB (1,090 words) - 21:38, 6 September 2014
• Non-specialized hardware comparison
  ...46 ||0.16 || 20 || 575 || 80 || - || PCI-E 2.0 x16 || poclbm || -w 32, don't use vectors ...89 ||0.13 || 25 || 600 || 80 || - || PCI-E 2.0 x16 || poclbm || -w 32, don't use vectors
  131 KB (14,245 words) - 23:09, 13 February 2023
• X
  {{Infobox person|name=x }}{{lowercase}}This page intends to list all available quotes from '''x''', an entity who is speculated to be [[Satoshi Nakamoto]].<ref>http://www.
  2 KB (377 words) - 22:05, 15 July 2015
• Proof of Ownership
  ...ure the owner of the file in the blockchain (as long as someone else doesn't show up with a proof certified before). ...ssible to create a new blockchain for this purpose. This blockchain wouldn't only store coins but also notarized proofs.
  2 KB (359 words) - 04:52, 22 October 2015
• Multi-signature
  * <var>m</var>-of-<var>n</var> backup where loss of a single seed doesn't lead to loss of the wallet. ...s after checking certain conditions (blacklists, whitelists, not more than X withdrawn per time period, two-factor authentication, comply with regulator
  11 KB (1,705 words) - 12:58, 2 February 2024
• Avalon4 mini
  * libusb_claim_interface fails when run CGMiner under Mac OS X We cann't use libusb to access HID devices under Mac OS X,
  3 KB (372 words) - 08:08, 16 November 2015
• List of Bitcoin mining ASICs
  ...ex.php?topic=833704.msg9678661#msg9678661</ref><ref>https://www.bikeji.com/t/165#comment_1088</ref>, package size<ref>https://bitcointalk.org/index.php? ...barkatullah.pdf presentation] [https://www.youtube.com/watch?v=nIqHeG2MnPs&t=3303 presentation video]
  100 KB (13,759 words) - 12:54, 22 January 2018
• Avalon6
  PSU ouput pin: 4 x 6PIN PCIe power connector. Dimensions: 340 mm x 136 mm x 150 mm
  22 KB (3,104 words) - 07:59, 15 August 2016
• BIP 0124
  ''Script''('''X''') = 2 ['''X'''] 3 OP_CHECKMULTISIG ...now the private key for '''B'''_k and also wait for a timeout '''t''' before being able to spend the output.
  6 KB (903 words) - 10:12, 1 January 2021
• BIP 0173
  |q||p||z||r||y||9||x||8 |g||f||2||t||v||d||w||0
  20 KB (3,196 words) - 18:51, 25 April 2024
• Techniques to reduce transaction fees
  ...a transaction. If the spender can pay with exact change—that is, doesn't need to refund any change to them self—they can eliminate the change outp ...idual user wallets that don't receive many payments to choose from and can't significantly vary the amount of their spending transactions, but for organ
  35 KB (5,324 words) - 16:45, 17 February 2019
• Blinded bearer certificates
  ...is not discussed much. But people who don't study this stuff probably won't know about it, and it could be very usefully applied to Bitcoin. ...nd x satoshi to the bank's [[Multisignature|multisig]] address and receive x signed certificates, one certificate per satoshi. Each certificate is signe
  7 KB (1,087 words) - 20:11, 15 February 2019
• ECDH address
  ...] generator point. <code>H(x)</code> means the hash (e.g. SHA256) of value X. ...the scanning. The server won't be able to steal any money because it doesn't have the spend key. Needless to say this method is not good for privacy bec
  5 KB (833 words) - 11:21, 31 May 2019
• BIP 0137
  ...e prefix of a compressed key allows for the y value to be derived from the x value. ...// This is what you get back from Bouncy Castle if base64 doesn't decode :(
  9 KB (1,418 words) - 21:43, 30 April 2024
• BIP 0075
  ...te the active exchange of payment addresses, so static addresses and BIP32 X-Pubs can be avoided to maintain privacy and convenience ...pplications, and there is always a risk of unknowingly sending funds to an X-Pub address after the owner has lost access to the corresponding private ke
  29 KB (4,013 words) - 17:59, 24 September 2019
• BIP 0136
  It is possible for a '''TxRef''' to reference a transaction that doesn't really exist because: * The specified block hasn't yet been mined.
  30 KB (4,018 words) - 15:52, 15 December 2021
• BIP 0157
  <code>double-SHA256(x) = SHA256(SHA256(x))</code>. proposal is not incompatible with the current P2P network rules (ie. doesn't
  21 KB (3,233 words) - 15:55, 15 December 2021
• BIP 0052
  ...Even the most sophisticated special-purpose hardware (ASIC miners) doesn’t cover its energy costs unless the miner also has direct access to very chea <pre>// M is a Matrix 64 x 64 of Unsigned 4 values
  22 KB (3,346 words) - 19:40, 16 January 2022
• BIP 0300
  x-byte title x-byte description
  19 KB (3,040 words) - 21:44, 23 April 2024
• BIP 0330
  ...reconciliation is meant to deliver transactions to those nodes which didn't receive a transaction via flooding, and also just make sure remaining conne ...hat ''salt₁ &le; salt₂'' (which side sent what doesn't matter).
  21 KB (3,293 words) - 21:48, 23 April 2024
• BIP 0340
  * '''Signature encoding''': Instead of using [https://en.wikipedia.org/wiki/X.690#DER_encoding DER]-encoding for signatures (which are variable size, and # Encoding the full X and Y coordinates of ''P'' and ''R'', resulting in a 64-byte public key and
  39 KB (6,291 words) - 17:37, 6 May 2024
• BIP 0341
  ...tag</sub>(x)'' notation to refer to ''SHA256(SHA256(tag) || SHA256(tag) || x)''. To the best of the authors' knowledge, no existing use of SHA256 in Bit ** Let ''t = hash_TapTweak(p || k_m)''.
  43 KB (6,814 words) - 18:04, 29 June 2023
• Elliptic curve cryptography
  ..., an elliptic curve involves two variables x and y which correspond to the X- and Y- coordinates of a point respectively. Curves have special operations ...point can be added to itself before you end up back at <code>G</code>. The x and y coordinates must not be larger or equal to this scalar number. Each c
  7 KB (1,176 words) - 01:52, 28 August 2021
• BIP 0324
  ...over Tor?''' See the [https://arxiv.org/abs/1410.6079 Bitcoin over Tor isn't a Good Idea] paper</ref> Additionally, Tor connections come with significan ...tream. While a random 256-bit string has about 50% chance of being a valid X coordinate on the secp256k1 curve, every 512-bit string is a valid Elligato
  65 KB (9,770 words) - 08:04, 29 September 2023
• BIP 0093
  def bech32_lagrange(l, x): n = bech32_mul(n, i ^ x)
  38 KB (5,537 words) - 05:05, 30 March 2023
• BIP 0327
  (MuSig2 is a ''n-of-n'' multi-signature scheme and not a ''t-of-n'' threshold-signature scheme.) ...ity with BIP340''': In this proposal, the aggregate public key is a BIP340 X-only public key, and the signature output at the end of the signing protoco
  68 KB (10,853 words) - 16:57, 22 April 2024