Bitcoin Wiki - User contributions [en]

Testnet

2015-02-05T13:07:08Z

Enoch Root: /* External links */

The '''testnet''' is an alternative Bitcoin [[block chain]], to be used for testing. Testnet coins are separate and distinct from actual bitcoins, and are never supposed to have any value. This allows application developers or bitcoin testers to experiment, without having to use real bitcoins or worrying about breaking the main bitcoin chain.

Run bitcoin or bitcoind with the -testnet flag to use the testnet (or put testnet=1 in the bitcoin.conf file).

There have been three generations of testnet. Testnet2 was just the first testnet reset with a different genesis block, because people were starting to trade testnet coins for real money. '''Testnet3''' is the current test network. It was introduced with the 0.7 release, introduced a third genesis block, a new rule to avoid the "difficulty was too high, is now too low, and transactions take too long to verify" problem, and contains blocks with edge-case transactions designed to test implementation compatibility.

==Differences==
* Default Bitcoin network protocol listen port is 18333 (instead of 8333)
* Default RPC connection port is 18332 (instead of 8332)
* Bootstrapping uses different DNS seeds.
* A different value of ADDRESSVERSION field ensures no testnet Bitcoin addresses will work on the production network. (0x6F rather than 0x00)
* The protocol message header bytes are 0x0B110907 (instead of 0xF9BEB4D9)
* Minimum [[difficulty]] of 1.0 on testnet is equal to difficulty of 0.5 on mainnet. This means that the mainnet-equivalent of any testnet difficulty is half the testnet difficulty. In addition, if no block has been found in 20 minutes, the difficulty automatically resets back to the minimum for a single block, after which it returns to its previous value.
* A new genesis block
* The IsStandard() check is disabled so that non-standard transactions can be experimented with.

==Genesis Block==

Testnet uses a different genesis block to the main network. You can find it [https://www.biteasy.com/testnet/blocks/000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943 here] or [http://blockexplorer.com/testnet/b/0 here].
The testnet was reset with a new genesis block for the 0.7 bitcoin release.

==Mining==
[[solo.ckpool]] has a testnet bitcoin solo mining implementation available, without the need to set up bicoind locally.

==External links==
* [https://bitcointalk.org/?topic=4483.0 Test Network forum topic]
* [http://bitcoinfaucet.uo1.net/ UO1 Testnet Faucet]
* [http://faucet.haskoin.com/ Haskoin Testnet3 Faucet]
* [http://tpfaucet.appspot.com/ TP's TestNet Faucet]
* [http://faucet.luis.im/ luis.im Mojocoin Testnet3 Faucet]
* [http://testnet.btclook.com/ BTCLook Testnet Explorer]
* [https://www.biteasy.com/testnet/blocks Biteasy.com Testnet Blockexplorer]
* [http://pool.qdoop.net:18331/chain/Testnet3 Testnet3 ABE based Block Explorer]
* [http://blockexplorer.com/testnet Testnet Block Explorer]
* [https://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/ Testnet-In-A-Box self-contained testnet]
* [https://github.com/freewil/bitcoin-testnet-box Forked/Updated testnet-box]
* [http://tbtc.blockr.io/ Bitcoin Testnet on Blockr.io]
* [https://test-insight.bitpay.com/ Bitcoin Testnet on insight.bitpay.com]
* [https://www.blocktrail.com/tBTC BlockTrail Testnet Explorer, Testnet API and Testnet Faucet]

[[Category:Technical]]
[[Category:Developer]]

Bitcoin faucet

2013-12-25T22:31:59Z

Enoch Root: /* External Links */

Used to gives bitcoins out for free to each visitor. IP addresses that receive bitcoins were recorded, so that bitcoins were given only once to each address. It was operated by [[User:Gavinandresen|Gavin Andresen]], however it is not functioning as of Jan 30 2013.

For [[Testnet]] there exists a different faucet that is working which gives out coins for people who want to do tests on the Testnet. The testnet faucet also has a simple wallet available to hold testnet coins.

==See Also==

* [[Trade#Getting_started|Alternate bitcoin distribution services]]

==External Links==

* [http://freebitcoins.appspot.com Bitcoin Faucet] web site
* [http://tpfaucet.appspot.com/ TestNet Faucet] web site
* [http://faucet.xeno-genesis.com/ Mojocoin Testnet3 Faucet] web site
* [http://freecoins.herokuapp.com FreeCoins] site, 0.00005 Bitcoin payouts sent every day, faucet can be used once a week.

[[Category:Services]]

Testnet

2013-12-25T22:29:12Z

Enoch Root: Changed Mojocoin Testnet3 Faucet address

The '''testnet''' is an alternative Bitcoin [[block chain]], to be used for testing. This allows application developers or bitcoin testers to experiment, without having to use real bitcoins or worrying about breaking the main bitcoin chain.

Run bitcoin or bitcoind with the -testnet flag to use the testnet (or put testnet=1 in the bitcoin.conf file).

There have been three generations of testnet. Testnet2 was just the first testnet reset with a different genesis block, because people were starting to trade testnet coins for real money. '''Testnet3''' is the current test network. It was introduced with the 0.7 release, introduced a third genesis block, a new rule to avoid the "difficulty was too high, is now too low, and transactions take too long to verify" problem, and contains blocks with edge-case transactions designed to test implementation compatibility.

==Differences==
* Default Bitcoin network protocol listen port is 18333 (instead of 8333)
* Default RPC connection port is 18332 (instead of 8332)
* Bootstrapping IRC channel is #bitcoinTEST instead of #bitcoin (both on irc.lfnet.org). The built-in node list is disabled.
* A different value of ADDRESSVERSION field ensures no testnet Bitcoin addresses will work on the production network. (0x6F rather than 0x00)
* The protocol message header bytes are 0x0B110907 (instead of 0xF9BEB4D9)
* Minimum [[difficulty]] of 1.0 on testnet is equal to difficulty of 0.5 on mainnet. This means that the mainnet-equivalent of any testnet difficulty is half the testnet difficulty. In addition, if no block has been found in 20 minutes, the difficulty automatically resets back to the minimum for a single block, after which it returns to its previous value.
* A new genesis block
* The IsStandard() check is disabled so that non-standard transactions can be experimented with.

==Genesis Block==

Testnet uses a different genesis block to the main network. You can find it [https://www.biteasy.com/testnet/blocks/000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943 here] or [http://blockexplorer.com/testnet/b/0 here].
The testnet was reset with a new genesis block for the 0.7 bitcoin release.

==External links==
* [https://www.biteasy.com/testnet/blocks Biteasy.com Testnet Blockexplorer]
* [https://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/ Testnet-In-A-Box self-contained testnet]
* [https://github.com/freewil/bitcoin-testnet-box Forked/Updated testnet-box]
* [https://bitcointalk.org/?topic=4483.0 Test Network forum topic]
* [http://tpfaucet.appspot.com/ TP's TestNet Faucet]
* [https://freebitcoins.appspot.com/test/ Testnet Faucet (closed)]
* [http://faucet.xeno-genesis.com/ Mojocoin Testnet3 Faucet]
* [http://pool.qdoop.net:18331/chain/Testnet3 Testnet3 ABE based Block Explorer]
* [http://blockexplorer.com/testnet Testnet Block Explorer]
* [http://blockexplorer.com/testnet/q/getdifficulty Testnet current difficulty] As output by BitCoin's getDifficulty]

[[Category:Technical]]
[[Category:Developer]]

Bitcoin faucet

2013-12-25T12:17:59Z

Enoch Root: /* External Links */

Used to gives bitcoins out for free to each visitor. IP addresses that receive bitcoins were recorded, so that bitcoins were given only once to each address. It was operated by [[User:Gavinandresen|Gavin Andresen]], however it is not functioning as of Jan 30 2013.

For [[Testnet]] there exists a different faucet that is working which gives out coins for people who want to do tests on the Testnet. The testnet faucet also has a simple wallet available to hold testnet coins.

==See Also==

* [[Trade#Getting_started|Alternate bitcoin distribution services]]

==External Links==

* [http://freebitcoins.appspot.com Bitcoin Faucet] web site
* [http://tpfaucet.appspot.com/ TestNet Faucet] web site
* [http://faucet.xeno-genesis.com/ Another Testnet Faucet] web site
* [http://freecoins.herokuapp.com FreeCoins] site, 0.00005 Bitcoin payouts sent every day, faucet can be used once a week.

[[Category:Services]]

Bitcoin faucet

2013-02-13T22:32:20Z

Enoch Root: /* External Links */ Mojocoin Testnet Faucet

Used to gives bitcoins out for free to each visitor. IP addresses that receive bitcoins were recorded, so that bitcoins were given only once to each address. It was operated by [[User:Gavinandresen|Gavin Andresen]], however it is not functioning as of Jan 30 2013.

For [[Testnet]] there exists a different faucet that is working which gives out coins for people who want to do tests on the Testnet. The testnet faucet also has a simple wallet available to hold testnet coins.

==See Also==

* [[Trade#Getting_started|Alternate bitcoin distribution services]]

==External Links==

* [http://freebitcoins.appspot.com Bitcoin Faucet] web site
* [http://tpfaucet.appspot.com/ TestNet Faucet] web site
* [http://testnet.mojocoin.com/ Another Testnet Faucet] web site

[[Category:Services]]

Testnet

2013-02-13T22:31:21Z

Enoch Root: Mojocoin Testnet Faucet