https://tests.bitcoin.it/w/api.php?action=feedcontributions&user=Nkuttler&feedformat=atomBitcoin Wiki - User contributions [en]2024-03-29T08:49:32ZUser contributionsMediaWiki 1.30.0https://tests.bitcoin.it/w/index.php?title=Difficulty&diff=69984Difficulty2023-12-30T15:07:54Z<p>Nkuttler: Remove broken link and add alternative, not numeric though</p>
<hr />
<div>''See also: [[target]]''<br />
<br />
=== What is "difficulty"? ===<br />
<br />
Difficulty is a measure of how difficult it is to find a hash below a given target.<br />
<br />
The Bitcoin network has a global block difficulty. Valid blocks must have a hash below this target.<br />
Mining pools also have a pool-specific share difficulty setting a lower limit for shares.<br />
<br />
=== How often does the network difficulty change? ===<br />
<br />
Every 2016 [[block|blocks]].<br />
<br />
=== What is the formula for difficulty? ===<br />
<br />
difficulty = difficulty_1_target / current_target <br />
<br />
(target is a 256 bit number)<br />
<br />
difficulty_1_target can be different for various ways to measure difficulty.<br />
Traditionally, it represents a hash where the leading 32 bits are zero and the rest are one (this is known as "pool difficulty" or "pdiff").<br />
The Bitcoin protocol represents targets as a custom floating point type with limited precision; as a result, Bitcoin clients often approximate difficulty based on this (this is known as "bdiff").<br />
<br />
===How is difficulty stored in blocks?===<br />
<br />
Each block stores a packed representation (called "Bits") for its actual hexadecimal [[target]]. The target can be derived from it via a predefined formula. For example, if the packed target in the block is 0x1b0404cb (stored in little-endian order: <code>cb 04 04 1b</code>), the hexadecimal target is<br />
0x0404cb * 2**(8*(0x1b - 3)) = 0x00000000000404CB000000000000000000000000000000000000000000000000<br />
<br />
Note that this packed format contains a sign bit in the 24th bit, and for example the negation of the above target would be 0x1b<b>8</b>404cb in packed format. Since targets are never negative in practice, however, this means the largest legal value for the lower 24 bits is 0x7fffff. Additionally, 0x008000 is the smallest legal value for the lower 24 bits since targets are always stored with the lowest possible exponent.<br />
<br />
===How is difficulty calculated? What is the difference between bdiff and pdiff?===<br />
<br />
The highest possible target (difficulty 1) is defined as 0x1d00ffff, which gives us a hex target of<br />
0x00ffff * 2**(8*(0x1d - 3)) = 0x00000000FFFF0000000000000000000000000000000000000000000000000000<br />
<br />
It should be noted that pooled mining often uses non-truncated targets, which puts "pool difficulty 1" at<br />
0x00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF<br />
<br />
So the difficulty at 0x1b0404cb is therefore:<br />
0x00000000FFFF0000000000000000000000000000000000000000000000000000 /<br />
0x00000000000404CB000000000000000000000000000000000000000000000000 <br />
= 16307.420938523983 (bdiff)<br />
And:<br />
0x00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF /<br />
0x00000000000404CB000000000000000000000000000000000000000000000000 <br />
= 16307.669773817162 (pdiff)<br />
<br />
Here's a fast way to calculate bitcoin difficulty. It uses a modified Taylor series for the logarithm (you can see tutorials on flipcode and wikipedia) and relies on logs to transform the difficulty calculation:<br />
<br />
<source lang="cpp"><br />
#include <iostream><br />
#include <cmath><br />
<br />
inline float fast_log(float val)<br />
{<br />
int * const exp_ptr = reinterpret_cast <int *>(&val);<br />
int x = *exp_ptr;<br />
const int log_2 = ((x >> 23) & 255) - 128;<br />
x &= ~(255 << 23);<br />
x += 127 << 23;<br />
*exp_ptr = x;<br />
<br />
val = ((-1.0f/3) * val + 2) * val - 2.0f/3;<br />
return ((val + log_2) * 0.69314718f);<br />
} <br />
<br />
float difficulty(unsigned int bits)<br />
{<br />
static double max_body = fast_log(0x00ffff), scaland = fast_log(256);<br />
return exp(max_body - fast_log(bits & 0x00ffffff) + scaland * (0x1d - ((bits & 0xff000000) >> 24)));<br />
}<br />
<br />
int main()<br />
{<br />
std::cout << difficulty(0x1b0404cb) << std::endl;<br />
return 0;<br />
}<br />
</source><br />
<br />
<br />
To see the math to go from the normal difficulty calculations (which require large big ints bigger than the space in any normal integer) to the calculation above, here's some python:<br />
<br />
<source lang="python"><br />
import decimal, math<br />
l = math.log<br />
e = math.e<br />
<br />
print 0x00ffff * 2**(8*(0x1d - 3)) / float(0x0404cb * 2**(8*(0x1b - 3)))<br />
print l(0x00ffff * 2**(8*(0x1d - 3)) / float(0x0404cb * 2**(8*(0x1b - 3))))<br />
print l(0x00ffff * 2**(8*(0x1d - 3))) - l(0x0404cb * 2**(8*(0x1b - 3)))<br />
print l(0x00ffff) + l(2**(8*(0x1d - 3))) - l(0x0404cb) - l(2**(8*(0x1b - 3)))<br />
print l(0x00ffff) + (8*(0x1d - 3))*l(2) - l(0x0404cb) - (8*(0x1b - 3))*l(2)<br />
print l(0x00ffff / float(0x0404cb)) + (8*(0x1d - 3))*l(2) - (8*(0x1b - 3))*l(2)<br />
print l(0x00ffff / float(0x0404cb)) + (0x1d - 0x1b)*l(2**8)<br />
</source><br />
<br />
Here's an even faster way to compute the difficulty, using <code>std::ldexp()</code>. This particular function lets you scale by a power of two almost for free, by directly adjusting the exponent on the floating point number. Thus, the difficulty calculation gets reduced to a couple integer arithmetic steps, single floating point divide, and a single scale-by-power-of-2.<br />
<br />
<source><br />
/* In C, just change cmath to math.h and std::ldexp to ldexp. */<br />
#include <cmath><br />
<br />
double difficulty(const unsigned bits) {<br />
const unsigned exponent_diff = 8 * (0x1D - ((bits >> 24) & 0xFF));<br />
const double significand = bits & 0xFFFFFF;<br />
return std::ldexp(0x00FFFF / significand, exponent_diff);<br />
}<br />
</source><br />
<br />
=== What is the current difficulty? ===<br />
<br />
[http://bitcoin.sipa.be Graphs]<br />
<br />
[https://mempool.space/graphs/mining/hashrate-difficulty More graphs]<br />
<br />
=== What is the maximum difficulty? ===<br />
<br />
There is no minimum target. The maximum difficulty is roughly: maximum_target / 1 (since 0 would result in infinity), which is a ridiculously huge number (about 2^224).<br />
<br />
The actual maximum difficulty is when current_target=0, but we would not be able to calculate the difficulty if that happened. (fortunately it never will, so we're ok.)<br />
<br />
=== Can the network difficulty go down? ===<br />
Yes it can. See discussion in [[target]].<br />
<br />
=== What is the minimum difficulty? ===<br />
The minimum difficulty, when the target is at the maximum allowed value, is 1.<br />
<br />
=== What network hash rate results in a given difficulty? ===<br />
The difficulty is adjusted every 2016 blocks based on the [[Block_timestamp|time]] it took to find the previous 2016 blocks. At the desired rate of one block each 10 minutes, 2016 blocks would take exactly two weeks to find. If the previous 2016 blocks took more than two weeks to find, the difficulty is reduced. If they took less than two weeks, the difficulty is increased. The change in difficulty is in proportion to the amount of time over or under two weeks the previous 2016 blocks took to find.<br />
<br />
To find a block, the hash must be less than the target. The hash is effectively a random number between 0 and 2**256-1. The offset for difficulty 1 is<br />
0xffff * 2**208<br />
and for difficulty D is<br />
(0xffff * 2**208)/D<br />
<br />
The expected number of hashes we need to calculate to find a block with difficulty D is therefore<br />
D * 2**256 / (0xffff * 2**208)<br />
or just<br />
D * 2**48 / 0xffff<br />
<br />
The difficulty is set such that the previous 2016 blocks would have been found at the rate of one every 10 minutes, so we were calculating (D * 2**48 / 0xffff) hashes in 600 seconds. That means the hash rate of the network was<br />
D * 2**48 / 0xffff / 600<br />
over the previous 2016 blocks. Can be further simplified to<br />
D * 2**32 / 600<br />
without much loss of accuracy.<br />
<br />
At difficulty 1, that is around 7 Mhashes per second.<br />
<br />
At the time of writing, the difficulty is 22012.4941572, which means that over the previous set of 2016 blocks found the average network hash rate was<br />
22012.4941572 * 2**32 / 600 = around 157 Ghashes per second.<br />
<br />
=== How soon might I expect to generate a block? ===<br />
(The [https://www.bitcointalk.org/index.php?topic=1682.0 eternal question].)<br />
<br />
The average time to find a block can be approximated by calculating:<br />
time = difficulty * 2**32 / hashrate<br />
where difficulty is the current difficulty, hashrate is the number of hashes your miner calculates per second, and time is the average in seconds between the blocks you find.<br />
<br />
For example, using Python we calculate the average time to generate a block using a 1Ghash/s mining rig when the difficulty is 20000:<br />
$ python -c "print 20000 * 2**32 / 10**9 / 60 / 60.0"<br />
23.85<br />
and find that it takes just under 24 hours on average.<br />
<br />
* Any one grinding of the hash stands the same chance of "winning" as any other. The numbers game is how many attempts your hardware can make per second.<br />
* You need to know the difficulty (above) and your khash/sec rate (reported by the client).<br />
** [[Mining Hardware Comparison]] has some stats that may help you predict what you could get.<br />
* Visit a calculator or perform the maths yourself,<br />
** http://www.alloscomp.com/bitcoin/calculator.php<br />
** http://www.vnbitcoin.org/bitcoincalculator.php<br />
** https://bitknock.com/calculator<br />
**https://99bitcoins.com/bitcoin-mining-calculator<br />
* Remember it's just probability! There are no guarantees you will win every N days.<br />
<br />
== Why is bitcoin not designed to update the difficulty more frequently? ==<br />
<br />
Discussion: https://old.reddit.com/r/Bitcoin/comments/mtugta/mentor_monday_april_19_2021_ask_all_your_bitcoin/gv86j6b/?context=5<br />
<br />
==Related Links==<br />
<br />
* [https://docs.google.com/spreadsheet/ccc?key=0AiFMBvXvL2dtdEZkR2J4eU5rS3B4ei1iUmJxSWNlQ0E Bitcoin Difficulty History]<br />
* [https://www.bitcoinmining.com/what-is-bitcoin-mining-difficulty/ What is Bitcoin Mining Difficulty?]<br />
* See also: [[target]]<br />
<br />
[[Category:Technical]]<br />
[[Category:Vocabulary]]<br />
<br />
[[pl:Trudność]]</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=IRC_channels&diff=68702IRC channels2021-06-15T15:13:56Z<p>Nkuttler: Switch Croatian channel to libera and add French</p>
<hr />
<div>This page lists IRC channels for discussing Bitcoin-related topics. Please read: [[Bitcoin IRC Channel Guidelines]] before joining.<br />
<br />
Prior to late May 2021, most of these channels were on the [https://freenode.net/ Freenode] network. Due to an [https://gist.github.com/joepie91/df80d8d36cd9d1bde46ba018af497409 Ownership dispute over Freenode], several have moved to [https://libera.chat Libera.chat]. The ones that remained on Freenode are no longer linked below, as the channel registration database there was deleted on June 14, 2021. Try them on Libera, or ask for help in <tt>#bitcoin</tt> on Libera.<br />
<br />
==Bitcoin Project==<br />
{| class="wikitable"<br />
! Channel !! Description<br />
|-<br />
| {{Libera IRC|bitcoin}} || General Bitcoin-related discussion and support. ([[Bitcoin_IRC_Channel_Guidelines | guidelines]]).<br />
|-<br />
| {{Libera IRC|bitcoin-core-builds}} || Discussion of the Bitcoin Core build system.<br />
|-<br />
| {{Freenode IRC|bitcoin-commits}} || Real-time notification of commits to Bitcoin projects.<br />
|-<br />
| {{Libera IRC|bitcoin-core-dev}} || For development of Bitcoin Core. Log sources; [http://www.erisian.com.au/bitcoin-core-dev/ 1], [http://gnusha.org/bitcoin-core-dev/ 2]<br />
|-<br />
| {{Libera IRC|bitcoin-core-gui}} || For development of Bitcoin Core's GUI.<br />
|-<br />
| {{Libera IRC|bitcoin-core-pr-reviews}} || Weekly PR review club for discussing Bitcoin Core Pull Requests.<br />
|-<br />
| {{Freenode IRC|bitcoin-dev}} || Dead. Formerly for Bitcoin software development. ([http://bitcoinstats.com/irc/bitcoin-dev/logs/ history]. [[Bitcoin-dev | guidelines]])<br />
|-<br />
| {{Freenode IRC|bitcoin-gaming}} || Bitcoin gamers hangout.<br />
|-<br />
| {{Freenode IRC|bitcoin-gentoo}} || Gentoo community.<br />
|-<br />
| {{Freenode IRC|bitcoin-marketing}} || Marketing and promotion of bitcoin<br />
|-<br />
| {{Freenode IRC|bitcoin-news}} || RSS News related to Bitcoin.<br />
|-<br />
| {{Freenode IRC|bitcoin-politics}} || Discuss politics with other Bitcoin users.<br />
|-<br />
| {{Freenode IRC|#bitcoin-pricetalk|text=&#35;bitcoin-pricetalk}} || ALL Discussion Remotely Related to Bitcoin Price or other offtopic goes here<br />
|-<br />
| {{Freenode IRC|bitcoin-watch|text=[[Bitcoin-Watch|#bitcoin-watch]]}} || Streaming Bitcoin transactions, including market data.<br />
|-<br />
| {{Libera IRC|bitcoin-wiki}} || Bitcoin Wiki support<br />
|-<br />
| {{Libera IRC|bitcoin-wizards}} || Bitcoin experts and futurists ([http://gnusha.org/bitcoin-wizards/ history])<br />
|-<br />
| {{Libera IRC|lightning-dev}} || Lightning protocol development ([http://gnusha.org/lightning-dev/ history])<br />
|-<br />
| {{Freenode IRC|lnd}} || Lightning only version of #bitcoin-commits<br />
|-<br />
| {{Freenode IRC|sidechains-dev}} || Sidechains development<br />
|}<br />
<br />
===Local communities===<br />
<br />
{| class="wikitable"<br />
| {{Freenode IRC|bitcoin-otc-eu}} || European OTC trading marketplace.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc-ru}} || Russian OTC trading marketplace.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc-uk}} ||United kingdom OTC Trading Marketplace.Founder Angus Bates.<br />
|-<br />
| {{Freenode IRC|bitcoin-aus}} || Aussie bitcoin community.<br />
|-<br />
| {{Freenode IRC|AustinBitcoin}} || Austin, TX bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-bra}} || Brazilian bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-cad}} || Canadian bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-cn}} || Chinese bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-dk}} || Danish bitcoin community.<br />
|-<br />
| {{Libera IRC|bitcoin-de}} || German bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-eastcoastusa}} || East Coast USA bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-il}} || Israeli bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-nl}} || Dutch bitcoin community. <br />
|-<br />
| {{Freenode IRC|bitcoin-pl}} || Polish bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-romania}} || Romanian bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-ve}} || Venezuelan bitcoin community.<br />
|-<br />
| {{Freenode IRC|btc.chat}} || Russian bitcoin community.<br />
|-<br />
| #bitcoins.fi @ IRCNet || Finnish bitcoin community.<br />
|-<br />
| {{Libera IRC|bitcoin-hr}} || Croatian language bitcoin community.<br />
|-<br />
| {{Libera IRC|bitcoin-fr}} || French language bitcoin community.<br />
<br />
|}<br />
<br />
==Mining Related Communities==<br />
<br />
{| class="wikitable"<br />
! Channel !! Description<br />
|-<br />
| {{Freenode IRC|avalon}} || Discussion and support specific to [[Avalon]] mining machine<br />
|-<br />
| {{Freenode IRC|bitcoin-mining}} || Discussion and support related to mining.<br />
|-<br />
| {{Freenode IRC|bitcoin-fpga}} || Discussion and support specific to FPGA mining.<br />
|-<br />
| {{Freenode IRC|btcguild}} || [[BTCGuild]] mining pool community<br />
|-<br />
| {{Freenode IRC|butterflylabs}} || [[Butterfly Labs]] chat<br />
|-<br />
| {{Freenode IRC|cgminer}} || Discussion and support specific to [[CGMiner]].<br />
|-<br />
| {{Freenode IRC|eligius}} || [[Eligius]] mining pool community (also support for [[BFGMiner]] and [[Eloipool]])<br />
|-<br />
| {{Freenode IRC|mining.bitcoin.cz}} || Slush's mining pool community<br />
|-<br />
| {{Freenode IRC|ozcoin}} || [[Ozco.in]] mining pool community<br />
|-<br />
| <small>[irc://irc.foonetic.net/xkcd-bitcoin IRC] [http://irc.lc/foonetic/xkcd-bitcoin/Miner@@@ Web]</small> #xkcd-bitcoin || [https://en.bitcoin.it/wiki/XKCD_Pool XKCD Pool]<br />
|-<br />
| <small>[irc://irc.quakenet.org/bitcoins.lc IRC] [http://irc.lc/quakenet/bitcoins.lc/Miner@@@ Web]</small> #bitcoins.lc @ Quakenet || [http://www.bitcoins.lc Bitcoins.lc Pool] <br />
|-<br />
| {{Freenode IRC|p2pool}} || [[P2Pool]] decentralized mining pool<br />
|-<br />
| {{Freenode IRC|bitminter}} || [[BitMinter]] Mining Pool Community<br />
|-<br />
| {{Freenode IRC|kncminer}} || [[KNCMiner]] ASIC Mining Hardware Vendor Discussion<br />
|}<br />
<br />
==Communities for Exchanges and Trading==<br />
<br />
{| class="wikitable"<br />
! Channel !! Description<br />
|-<br />
| {{Freenode IRC|bitcoin-assets}} || Discussion of securities and other asset investments. [http://bitcoin-assets.com bitcoin-assets.com].<br />
|-<br />
| {{Freenode IRC|bitcoin-assets-trades}} || Streaming assets market data (only), no chat.<br />
|-<br />
| {{Freenode IRC|bitcoin-auction}} || Live auctions over IRC.<br />
|-<br />
| {{Freenode IRC|bitcoin-market}} || Streaming market data (only), no chat.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc|text=[[bitcoin-otc|#bitcoin-otc]]}} || Over-the-counter trading marketplace and discussion. ([http://bitcoinstats.com/irc/bitcoin-otc/logs/ history])<br />
|-<br />
| {{Freenode IRC|bitcoin-escrow}} || Third party escrow agents.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc-ticker|bitcoin-otc-ticker}} || Streaming market data form the [[#bitcoin-otc]] order book.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc-ratings|bitcoin-otc-ratings}} || Updates to ratings on the [[#bitcoin-otc]] Web of Trust.<br />
|-<br />
| {{Freenode IRC|bitcoin-pit}} || Only over-the-counter trading.<br />
|-<br />
| {{Freenode IRC|bitcoin-wot|bitcoin-wot}} || Distributed Web of Trust (WoT) system for [[#bitcoin-otc]].<br />
|-<br />
| {{Freenode IRC|btc.chat.traders}} || Russian community discussion about trades/exchanges.<br />
|-<br />
| {{Freenode IRC|coinbase}} || [[Coinbase]] chat<br />
|-<br />
| {{Freenode IRC|bitcoin-rt}} || Real-time tape (executed trades).<br />
|-<br />
| {{Freenode IRC|localbitcoins-chat}} || [[LocalBitcoins.com]] exchange support<br />
|-<br />
| {{Freenode IRC|Coinabul}} || [http://Coinabul.com Coinabul]'s customer support and news channel. Selling gold and silver for Bitcoin.<br />
|}<br />
<br />
==Related Communities==<br />
<br />
{| class="wikitable"<br />
! Channel !! Description<br />
|-<br />
| {{Freenode IRC|opentransactions}} || [[Open Transactions]] project.<br />
|-<br />
| {{Freenode IRC|namecoin}} || [[Namecoin]] and the [[Dot-bit]] project.<br />
|-<br />
| {{Freenode IRC|twister}} || [[Twister]], P2P microblogging discussion.<br />
|-<br />
| {{Freenode IRC|joinmarket}} || [[JoinMarket]], A [[CoinJoin]] implementation<br />
|-<br />
| {{Freenode IRC|darkwallet}} || [[DarkWallet]] and libbitcoin/Obelisk discussion & development channel.<br />
|-<br />
| {{Freenode IRC|electrum}} || [[Electrum]], lightweight bitcoin client.<br />
|-<br />
| {{Freenode IRC|copay}} || [[Copay]], lightweight bitcoin client.<br />
|-<br />
| {{Freenode IRC|bitcoin-stackexchange}} || Discussion complementing [http://bitcoin.stackexchange.com Bitcoin StackExchange].<br />
<br />
|}<br />
<br />
==See Also==<br />
<br />
* [[Bitcoin_Wiki:Community_portal]]<br />
<br />
[[fr:Canaux IRC]]<br />
[[pl:Kanały IRC]]<br />
[[ro:Canale]]</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=IRC_channels&diff=68692IRC channels2021-06-09T19:32:16Z<p>Nkuttler: #bitcoin-de moved to libera</p>
<hr />
<div>This page lists IRC channels for discussing Bitcoin-related topics. Please read: [[Bitcoin IRC Channel Guidelines]] before joining.<br />
<br />
Prior to late May 2021, most of these channels were on the [https://freenode.net/ Freenode] network. Due to an [https://gist.github.com/joepie91/df80d8d36cd9d1bde46ba018af497409 Ownership dispute over Freenode], several have moved to [https://libera.chat Libera.chat], with a few others planning to move by early June. If you join a channel at the Freenode address listed below and don't find any activity within a reasonable amount of time, try the same channel on Libera or ask for help in <tt>#bitcoin</tt> on Libera.<br />
<br />
==Bitcoin Project==<br />
{| class="wikitable"<br />
! Channel !! Description<br />
|-<br />
| {{Libera IRC|bitcoin}} || General Bitcoin-related discussion and support. ([[Bitcoin_IRC_Channel_Guidelines | guidelines]]).<br />
|-<br />
| {{Libera IRC|bitcoin-core-builds}} || Discussion of the Bitcoin Core build system.<br />
|-<br />
| {{Freenode IRC|bitcoin-commits}} || Real-time notification of commits to Bitcoin projects.<br />
|-<br />
| {{Libera IRC|bitcoin-core-dev}} || For development of Bitcoin Core. Log sources; [http://www.erisian.com.au/bitcoin-core-dev/ 1], [http://gnusha.org/bitcoin-core-dev/ 2]<br />
|-<br />
| {{Libera IRC|bitcoin-core-gui}} || For development of Bitcoin Core's GUI.<br />
|-<br />
| {{Libera IRC|bitcoin-core-pr-reviews}} || Weekly PR review club for discussing Bitcoin Core Pull Requests.<br />
|-<br />
| {{Freenode IRC|bitcoin-dev}} || Dead. Formerly for Bitcoin software development. ([http://bitcoinstats.com/irc/bitcoin-dev/logs/ history]. [[Bitcoin-dev | guidelines]])<br />
|-<br />
| {{Freenode IRC|bitcoin-gaming}} || Bitcoin gamers hangout.<br />
|-<br />
| {{Freenode IRC|bitcoin-gentoo}} || Gentoo community.<br />
|-<br />
| {{Freenode IRC|bitcoin-marketing}} || Marketing and promotion of bitcoin<br />
|-<br />
| {{Freenode IRC|bitcoin-news}} || RSS News related to Bitcoin.<br />
|-<br />
| {{Freenode IRC|bitcoin-politics}} || Discuss politics with other Bitcoin users.<br />
|-<br />
| {{Freenode IRC|#bitcoin-pricetalk|text=&#35;bitcoin-pricetalk}} || ALL Discussion Remotely Related to Bitcoin Price or other offtopic goes here<br />
|-<br />
| {{Freenode IRC|bitcoin-watch|text=[[Bitcoin-Watch|#bitcoin-watch]]}} || Streaming Bitcoin transactions, including market data.<br />
|-<br />
| {{Libera IRC|bitcoin-wiki}} || Bitcoin Wiki support<br />
|-<br />
| {{Libera IRC|bitcoin-wizards}} || Bitcoin experts and futurists ([http://gnusha.org/bitcoin-wizards/ history])<br />
|-<br />
| {{Libera IRC|lightning-dev}} || Lightning protocol development ([http://gnusha.org/lightning-dev/ history])<br />
|-<br />
| {{Freenode IRC|lnd}} || Lightning only version of #bitcoin-commits<br />
|-<br />
| {{Freenode IRC|sidechains-dev}} || Sidechains development<br />
|}<br />
<br />
===Local communities===<br />
<br />
{| class="wikitable"<br />
| {{Freenode IRC|bitcoin-otc-eu}} || European OTC trading marketplace.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc-ru}} || Russian OTC trading marketplace.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc-uk}} ||United kingdom OTC Trading Marketplace.Founder Angus Bates.<br />
|-<br />
| {{Freenode IRC|bitcoin-aus}} || Aussie bitcoin community.<br />
|-<br />
| {{Freenode IRC|AustinBitcoin}} || Austin, TX bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-bra}} || Brazilian bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-cad}} || Canadian bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-cn}} || Chinese bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-dk}} || Danish bitcoin community.<br />
|-<br />
| {{Libera IRC|bitcoin-de}} || German bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-eastcoastusa}} || East Coast USA bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-il}} || Israeli bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-nl}} || Dutch bitcoin community. <br />
|-<br />
| {{Freenode IRC|bitcoin-pl}} || Polish bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-romania}} || Romanian bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-ve}} || Venezuelan bitcoin community.<br />
|-<br />
| {{Freenode IRC|btc.chat}} || Russian bitcoin community.<br />
|-<br />
| #bitcoins.fi @ IRCNet || Finnish bitcoin community.<br />
|-<br />
| {{Freenode IRC|bitcoin-hr}} || Croatian language bitcoin community.<br />
<br />
|}<br />
<br />
==Mining Related Communities==<br />
<br />
{| class="wikitable"<br />
! Channel !! Description<br />
|-<br />
| {{Freenode IRC|avalon}} || Discussion and support specific to [[Avalon]] mining machine<br />
|-<br />
| {{Freenode IRC|bitcoin-mining}} || Discussion and support related to mining.<br />
|-<br />
| {{Freenode IRC|bitcoin-fpga}} || Discussion and support specific to FPGA mining.<br />
|-<br />
| {{Freenode IRC|btcguild}} || [[BTCGuild]] mining pool community<br />
|-<br />
| {{Freenode IRC|butterflylabs}} || [[Butterfly Labs]] chat<br />
|-<br />
| {{Freenode IRC|cgminer}} || Discussion and support specific to [[CGMiner]].<br />
|-<br />
| {{Freenode IRC|eligius}} || [[Eligius]] mining pool community (also support for [[BFGMiner]] and [[Eloipool]])<br />
|-<br />
| {{Freenode IRC|mining.bitcoin.cz}} || Slush's mining pool community<br />
|-<br />
| {{Freenode IRC|ozcoin}} || [[Ozco.in]] mining pool community<br />
|-<br />
| <small>[irc://irc.foonetic.net/xkcd-bitcoin IRC] [http://irc.lc/foonetic/xkcd-bitcoin/Miner@@@ Web]</small> #xkcd-bitcoin || [https://en.bitcoin.it/wiki/XKCD_Pool XKCD Pool]<br />
|-<br />
| <small>[irc://irc.quakenet.org/bitcoins.lc IRC] [http://irc.lc/quakenet/bitcoins.lc/Miner@@@ Web]</small> #bitcoins.lc @ Quakenet || [http://www.bitcoins.lc Bitcoins.lc Pool] <br />
|-<br />
| {{Freenode IRC|p2pool}} || [[P2Pool]] decentralized mining pool<br />
|-<br />
| {{Freenode IRC|bitminter}} || [[BitMinter]] Mining Pool Community<br />
|-<br />
| {{Freenode IRC|kncminer}} || [[KNCMiner]] ASIC Mining Hardware Vendor Discussion<br />
|}<br />
<br />
==Communities for Exchanges and Trading==<br />
<br />
{| class="wikitable"<br />
! Channel !! Description<br />
|-<br />
| {{Freenode IRC|bitcoin-assets}} || Discussion of securities and other asset investments. [http://bitcoin-assets.com bitcoin-assets.com].<br />
|-<br />
| {{Freenode IRC|bitcoin-assets-trades}} || Streaming assets market data (only), no chat.<br />
|-<br />
| {{Freenode IRC|bitcoin-auction}} || Live auctions over IRC.<br />
|-<br />
| {{Freenode IRC|bitcoin-market}} || Streaming market data (only), no chat.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc|text=[[bitcoin-otc|#bitcoin-otc]]}} || Over-the-counter trading marketplace and discussion. ([http://bitcoinstats.com/irc/bitcoin-otc/logs/ history])<br />
|-<br />
| {{Freenode IRC|bitcoin-escrow}} || Third party escrow agents.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc-ticker|bitcoin-otc-ticker}} || Streaming market data form the [[#bitcoin-otc]] order book.<br />
|-<br />
| {{Freenode IRC|bitcoin-otc-ratings|bitcoin-otc-ratings}} || Updates to ratings on the [[#bitcoin-otc]] Web of Trust.<br />
|-<br />
| {{Freenode IRC|bitcoin-pit}} || Only over-the-counter trading.<br />
|-<br />
| {{Freenode IRC|bitcoin-wot|bitcoin-wot}} || Distributed Web of Trust (WoT) system for [[#bitcoin-otc]].<br />
|-<br />
| {{Freenode IRC|btc.chat.traders}} || Russian community discussion about trades/exchanges.<br />
|-<br />
| {{Freenode IRC|coinbase}} || [[Coinbase]] chat<br />
|-<br />
| {{Freenode IRC|bitcoin-rt}} || Real-time tape (executed trades).<br />
|-<br />
| {{Freenode IRC|localbitcoins-chat}} || [[LocalBitcoins.com]] exchange support<br />
|-<br />
| {{Freenode IRC|Coinabul}} || [http://Coinabul.com Coinabul]'s customer support and news channel. Selling gold and silver for Bitcoin.<br />
|}<br />
<br />
==Related Communities==<br />
<br />
{| class="wikitable"<br />
! Channel !! Description<br />
|-<br />
| {{Freenode IRC|opentransactions}} || [[Open Transactions]] project.<br />
|-<br />
| {{Freenode IRC|namecoin}} || [[Namecoin]] and the [[Dot-bit]] project.<br />
|-<br />
| {{Freenode IRC|twister}} || [[Twister]], P2P microblogging discussion.<br />
|-<br />
| {{Freenode IRC|joinmarket}} || [[JoinMarket]], A [[CoinJoin]] implementation<br />
|-<br />
| {{Freenode IRC|darkwallet}} || [[DarkWallet]] and libbitcoin/Obelisk discussion & development channel.<br />
|-<br />
| {{Freenode IRC|electrum}} || [[Electrum]], lightweight bitcoin client.<br />
|-<br />
| {{Freenode IRC|copay}} || [[Copay]], lightweight bitcoin client.<br />
|-<br />
| {{Freenode IRC|bitcoin-stackexchange}} || Discussion complementing [http://bitcoin.stackexchange.com Bitcoin StackExchange].<br />
<br />
|}<br />
<br />
==See Also==<br />
<br />
* [[Bitcoin_Wiki:Community_portal]]<br />
<br />
[[fr:Canaux IRC]]<br />
[[pl:Kanały IRC]]<br />
[[ro:Canale]]</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=BTER&diff=68425BTER2021-02-13T11:31:30Z<p>Nkuttler: </p>
<hr />
<div>BTER is another of the hybrid fiat to crypto and crypto to crypto exchanges. Although they had a rocky start to 2015 with a severe security breach, they have gradually reopened markets and have dealt with the situation in a professional manner. BTER [https://bitcointalk.org/index.php?topic=2320095.0 closed in 2017].</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Consensus_versions&diff=67454Consensus versions2020-04-18T16:58:58Z<p>Nkuttler: The table layout was broken; Undo revision 67451 by 934 (talk)</p>
<hr />
<div>{| class="wikitable"<br />
! TENTATIVE semantic version number || Software release || Change type || BIP(s)<br />
|-<br />
| 0.1.0 || wxBitcoin 0.1.0 || original<br />
|-<br />
| 0.1.1 || wxBitcoin 0.3.1 || softfork || mostly-redundant 1 MB block size limit<br />
|-<br />
| 0.1.2 || wxBitcoin 0.3.5 || softfork || fixes CVE-2010-5141<br />
|-<br />
| 0.1.3 || wxBitcoin 0.3.6 || softfork || OP_NOPs made explicit<br />
|-<br />
| 0.2.0 || wxBitcoin 0.3.7 || hardfork || scriptSig + scriptPubKey evaluations separated<br />
|-<br />
| 0.2.1 || wxBitcoin 0.3.10 || softfork || fixes CVE-2010-5137 and CVE-2010-5139<br />
|-<br />
| 0.2.2 || wxBitcoin 0.3.12 || softfork || fixes CVE-2010-5138<br />
|-<br />
| 1.0.0 || Bitcoin Core 0.6.0 || softfork || fixes CVE-2012-1909<br />
|-<br />
| 1.1.0 || Bitcoin Core 0.6.0 || softfork || BIP16<br />
|-<br />
| 1.0.1 || Bitcoin Core 0.7.0 || softfork || BIP34<br />
|-<br />
| 1.0.2 || Bitcoin Core 0.8.1 || softfork || fixes CVE-2013-3220 by adding txid change limit<br />
|-<br />
| 2.0.0 || Bitcoin Core 0.8.1 || hardfork || removed BDB lock limit & txid change limit<br />
|-<br />
| 2.0.1 || Bitcoin Core 0.9.2 || softfork || BIP42<br />
|-<br />
| 2.1.0 || Bitcoin Core 0.10.0 || softfork || BIP66<br />
|-<br />
| 2.2.0 || Bitcoin Core 0.10.4 || softfork || BIP65<br />
|-<br />
| 2.3.0 || Bitcoin Core 0.12.1 || softfork || BIP68, BIP112, BIP113<br />
|-<br />
| 2.4.0 || Bitcoin Core 0.13.1 || softfork || BIP141, BIP143, BIP147<br />
|-<br />
| 2.4.1 || Bitcoin Core UASF 0.14.0 || softfork || BIP148<br />
|-<br />
| 2.4.2 || Bitcoin Core 0.16.3 || softfork || fixes CVE-2018-17144<br />
|}</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Testnet&diff=67448Testnet2020-04-14T05:07:14Z<p>Nkuttler: My faucet is online and hasn't used joinmarket for a long time</p>
<hr />
<div>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.<br />
<br />
Run bitcoin-qt or bitcoind with the -testnet flag to use the testnet (or put testnet=1 in the bitcoin.conf file).<br />
<br />
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. On the December 21 of 2015 SegNet was deployed, to test the Wuille's Segregated Witness proposal.<br />
<br />
==Differences==<br />
* Default Bitcoin network protocol listen port is 18333 (instead of 8333)<br />
* Default RPC connection port is 18332 (instead of 8332)<br />
* Bootstrapping uses different DNS seeds.<br />
* A different value of ADDRESSVERSION field ensures no testnet Bitcoin addresses will work on the production network. (0x6F rather than 0x00)<br />
* The protocol message header bytes are 0x0B110907 (instead of 0xF9BEB4D9) <br />
* 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.<br />
* A new genesis block<br />
* The IsStandard() check is disabled so that non-standard transactions can be experimented with.<br />
<br />
==Genesis Block==<br />
<br />
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].<br />
The testnet was [https://github.com/gavinandresen/bitcoin-git/commit/feeb761ba07af74a7cd78b8c8f7c2a961fd9ea1c reset with a new genesis block] for the 0.7 bitcoin release.<br />
<br />
==Size==<br />
Testnet receives less transactions than the main block chain and is typically much smaller in size. As of January 2018 the size of the data on disk was 14GB, containing data for about 6 years worth of testnet activity. Downloading this data required about 12GB of network activity peaking at 2MB/s rate of transfer.<br />
<br />
==External links==<br />
<br />
* [https://bitcointalk.org/?topic=4483.0 Testnet in a box forum topic]<br />
* [https://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/ Testnet-In-A-Box self-contained testnet]<br />
* [https://github.com/freewil/bitcoin-testnet-box Forked/Updated testnet-box]<br />
<br />
===Wallets===<br />
<br />
Online testnet wallets to help you test your application.<br />
<br />
* [http://testnetwallet.com/ TestnetWallet.com]<br />
* [https://CoPay.io/ CoPay.io] wallet supports TestNet accounts<br />
<br />
===Faucets===<br />
<br />
Once you're done with your test coins, it is a nice gesture to send them back to the faucets, so they become available to other developers.<br />
* [http://tbtc.bitaps.com bitaps.com Testnet Faucet + double spend test tool]<br />
* [http://bitcoinfaucet.uo1.net/ UO1 Testnet Faucet]<br />
* [https://play.google.com/store/apps/details?id=com.mycelium.testnetwallet Mycelium Testnet Wallet for Android with integrated Testnet "faucet" function (Local Trader)]<br />
* [https://testnet-faucet.mempool.co mempool.co testnet3 Faucet]<br />
* [http://kuttler.eu/bitcoin/btc/faucet/ nkuttler's Bitcoin Testnet Faucet]<br />
<br />
Offline (2018-09-06):<br />
<br />
* [http://tpfaucet.appspot.com/ TP's TestNet Faucet]<br />
* [https://testnet.manu.backend.hamburg/faucet flyingkiwi's TestNet Faucet]<br />
<br />
Offline (2016-08-07):<br />
<br />
* [http://faucet.luis.im/ luis.im Mojocoin Testnet3 Faucet]<br />
* [https://accounts.blockcypher.com/testnet-faucet BlockCypher Testnet Faucet], also provided as a [http://dev.blockcypher.com/#faucets Testnet faucet API] for test automation<br />
<br />
===Block explorers===<br />
* [http://tbtc.bitaps.com/ Bitcoin Testnet Explorer on bitaps.com]<br />
* [https://www.biteasy.com/testnet/blocks Biteasy.com Testnet Blockexplorer]<br />
* [http://testnet.blockchain.info Blockchain.info Testnet Explorer]<br />
* [http://tbtc.blockr.io/ Bitcoin Testnet on Blockr.io]<br />
* [https://test-insight.bitpay.com/ Bitcoin Testnet on insight.bitpay.com]<br />
* [https://www.blocktrail.com/tBTC BlockTrail Testnet Explorer, Testnet API and Testnet Faucet]<br />
* [https://live.blockcypher.com/btc-testnet/ BlockCypher Testnet Explorer]<br />
[[Category:Technical]]<br />
[[Category:Developer]]<br />
<br />
{{Bitcoin Core documentation}}</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=User:Nkuttler&diff=64203User:Nkuttler2017-11-13T13:44:21Z<p>Nkuttler: </p>
<hr />
<div>Hi, I'm Nicolas, I'm an op in various #bitcoin-foo channels.<br />
<br />
Trolls are mentally ill. Sad, but I feel for you.</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Testnet&diff=61423Testnet2016-08-07T00:05:45Z<p>Nkuttler: Separate faucets that can't be reached</p>
<hr />
<div>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.<br />
<br />
Run bitcoin or bitcoind with the -testnet flag to use the testnet (or put testnet=1 in the bitcoin.conf file).<br />
<br />
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. On the December 21 of 2015 SegNet was deployed, to test the Wuille's Segregated Witness proposal.<br />
<br />
==Differences==<br />
* Default Bitcoin network protocol listen port is 18333 (instead of 8333)<br />
* Default RPC connection port is 18332 (instead of 8332)<br />
* Bootstrapping uses different DNS seeds.<br />
* A different value of ADDRESSVERSION field ensures no testnet Bitcoin addresses will work on the production network. (0x6F rather than 0x00)<br />
* The protocol message header bytes are 0x0B110907 (instead of 0xF9BEB4D9) <br />
* 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.<br />
* A new genesis block<br />
* The IsStandard() check is disabled so that non-standard transactions can be experimented with.<br />
<br />
==Genesis Block==<br />
<br />
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].<br />
The testnet was [https://github.com/gavinandresen/bitcoin-git/commit/feeb761ba07af74a7cd78b8c8f7c2a961fd9ea1c reset with a new genesis block] for the 0.7 bitcoin release.<br />
<br />
==Size==<br />
Testnet receives less transactions than the main block chain and is typically much smaller in size. As of June 2016 the size of the data on disk was 7GB, containing data for about 4 years worth of testnet activity. Downloading this data required about 6GB of network activity peaking at 2MB/s rate of transfer.<br />
<br />
==Mining==<br />
[[solo.ckpool]] has a testnet bitcoin solo mining implementation available, without the need to set up bitcoind locally.<br />
<br />
==External links==<br />
<br />
* [https://bitcointalk.org/?topic=4483.0 Testnet in a box forum topic]<br />
* [https://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/ Testnet-In-A-Box self-contained testnet]<br />
* [https://github.com/freewil/bitcoin-testnet-box Forked/Updated testnet-box]<br />
<br />
===Wallets===<br />
<br />
Online testnet wallets to help you test your application.<br />
<br />
* [http://testnetwallet.com/ TestnetWallet.com]<br />
<br />
===Faucets===<br />
<br />
Once you're done with your test coins, it is a nice gesture to send them back to the faucets, so they become available to other developers.<br />
<br />
* [http://bitcoinfaucet.uo1.net/ UO1 Testnet Faucet]<br />
* [http://tpfaucet.appspot.com/ TP's TestNet Faucet]<br />
* [http://kuttler.eu/bitcoin/btc/faucet/ nkuttler's Bitcoin Testnet Faucet], transactions are made through Joinmarket, a [[CoinJoin]] implementation<br />
* [https://testnet.manu.backend.hamburg/faucet flyingkiwi's TestNet Faucet]<br />
* [https://play.google.com/store/apps/details?id=com.mycelium.testnetwallet Mycelium Testnet Wallet for Android with integrated Testnet "faucet" function (Local Trader)]<br />
<br />
Offline (2016-08-07):<br />
<br />
* [http://faucet.luis.im/ luis.im Mojocoin Testnet3 Faucet]<br />
* [https://accounts.blockcypher.com/testnet-faucet BlockCypher Testnet Faucet], also provided as a [http://dev.blockcypher.com/#faucets Testnet faucet API] for test automation<br />
<br />
===Block explorers===<br />
* [https://www.biteasy.com/testnet/blocks Biteasy.com Testnet Blockexplorer]<br />
* [http://blockexplorer.com/testnet Testnet Block Explorer]<br />
* [http://tbtc.blockr.io/ Bitcoin Testnet on Blockr.io]<br />
* [https://test-insight.bitpay.com/ Bitcoin Testnet on insight.bitpay.com]<br />
* [https://www.blocktrail.com/tBTC BlockTrail Testnet Explorer, Testnet API and Testnet Faucet]<br />
* [https://live.blockcypher.com/btc-testnet/ BlockCypher Testnet Explorer]<br />
[[Category:Technical]]<br />
[[Category:Developer]]<br />
<br />
{{Bitcoin Core documentation}}</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Testnet&diff=61422Testnet2016-08-07T00:03:07Z<p>Nkuttler: App download and install required to use this faucet, moving it down</p>
<hr />
<div>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.<br />
<br />
Run bitcoin or bitcoind with the -testnet flag to use the testnet (or put testnet=1 in the bitcoin.conf file).<br />
<br />
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. On the December 21 of 2015 SegNet was deployed, to test the Wuille's Segregated Witness proposal.<br />
<br />
==Differences==<br />
* Default Bitcoin network protocol listen port is 18333 (instead of 8333)<br />
* Default RPC connection port is 18332 (instead of 8332)<br />
* Bootstrapping uses different DNS seeds.<br />
* A different value of ADDRESSVERSION field ensures no testnet Bitcoin addresses will work on the production network. (0x6F rather than 0x00)<br />
* The protocol message header bytes are 0x0B110907 (instead of 0xF9BEB4D9) <br />
* 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.<br />
* A new genesis block<br />
* The IsStandard() check is disabled so that non-standard transactions can be experimented with.<br />
<br />
==Genesis Block==<br />
<br />
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].<br />
The testnet was [https://github.com/gavinandresen/bitcoin-git/commit/feeb761ba07af74a7cd78b8c8f7c2a961fd9ea1c reset with a new genesis block] for the 0.7 bitcoin release.<br />
<br />
==Size==<br />
Testnet receives less transactions than the main block chain and is typically much smaller in size. As of June 2016 the size of the data on disk was 7GB, containing data for about 4 years worth of testnet activity. Downloading this data required about 6GB of network activity peaking at 2MB/s rate of transfer.<br />
<br />
==Mining==<br />
[[solo.ckpool]] has a testnet bitcoin solo mining implementation available, without the need to set up bitcoind locally.<br />
<br />
==External links==<br />
<br />
* [https://bitcointalk.org/?topic=4483.0 Testnet in a box forum topic]<br />
* [https://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/ Testnet-In-A-Box self-contained testnet]<br />
* [https://github.com/freewil/bitcoin-testnet-box Forked/Updated testnet-box]<br />
<br />
===Wallets===<br />
<br />
Online testnet wallets to help you test your application.<br />
<br />
* [http://testnetwallet.com/ TestnetWallet.com]<br />
<br />
===Faucets===<br />
<br />
Once you're done with your test coins, it is a nice gesture to send them back to the faucets, so they become available to other developers.<br />
<br />
* [http://bitcoinfaucet.uo1.net/ UO1 Testnet Faucet]<br />
* [http://tpfaucet.appspot.com/ TP's TestNet Faucet]<br />
* [http://kuttler.eu/bitcoin/btc/faucet/ nkuttler's Bitcoin Testnet Faucet], transactions are made through Joinmarket, a [[CoinJoin]] implementation<br />
* [https://accounts.blockcypher.com/testnet-faucet BlockCypher Testnet Faucet], also provided as a [http://dev.blockcypher.com/#faucets Testnet faucet API] for test automation<br />
* [https://testnet.manu.backend.hamburg/faucet flyingkiwi's TestNet Faucet]<br />
* [https://play.google.com/store/apps/details?id=com.mycelium.testnetwallet Mycelium Testnet Wallet for Android with integrated Testnet "faucet" function (Local Trader)]<br />
* [http://faucet.luis.im/ luis.im Mojocoin Testnet3 Faucet]<br />
<br />
===Block explorers===<br />
* [https://www.biteasy.com/testnet/blocks Biteasy.com Testnet Blockexplorer]<br />
* [http://blockexplorer.com/testnet Testnet Block Explorer]<br />
* [http://tbtc.blockr.io/ Bitcoin Testnet on Blockr.io]<br />
* [https://test-insight.bitpay.com/ Bitcoin Testnet on insight.bitpay.com]<br />
* [https://www.blocktrail.com/tBTC BlockTrail Testnet Explorer, Testnet API and Testnet Faucet]<br />
* [https://live.blockcypher.com/btc-testnet/ BlockCypher Testnet Explorer]<br />
[[Category:Technical]]<br />
[[Category:Developer]]<br />
<br />
{{Bitcoin Core documentation}}</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Testnet&diff=61421Testnet2016-08-07T00:02:26Z<p>Nkuttler: luis.im is down at the moment, moving it to the bottom</p>
<hr />
<div>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.<br />
<br />
Run bitcoin or bitcoind with the -testnet flag to use the testnet (or put testnet=1 in the bitcoin.conf file).<br />
<br />
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. On the December 21 of 2015 SegNet was deployed, to test the Wuille's Segregated Witness proposal.<br />
<br />
==Differences==<br />
* Default Bitcoin network protocol listen port is 18333 (instead of 8333)<br />
* Default RPC connection port is 18332 (instead of 8332)<br />
* Bootstrapping uses different DNS seeds.<br />
* A different value of ADDRESSVERSION field ensures no testnet Bitcoin addresses will work on the production network. (0x6F rather than 0x00)<br />
* The protocol message header bytes are 0x0B110907 (instead of 0xF9BEB4D9) <br />
* 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.<br />
* A new genesis block<br />
* The IsStandard() check is disabled so that non-standard transactions can be experimented with.<br />
<br />
==Genesis Block==<br />
<br />
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].<br />
The testnet was [https://github.com/gavinandresen/bitcoin-git/commit/feeb761ba07af74a7cd78b8c8f7c2a961fd9ea1c reset with a new genesis block] for the 0.7 bitcoin release.<br />
<br />
==Size==<br />
Testnet receives less transactions than the main block chain and is typically much smaller in size. As of June 2016 the size of the data on disk was 7GB, containing data for about 4 years worth of testnet activity. Downloading this data required about 6GB of network activity peaking at 2MB/s rate of transfer.<br />
<br />
==Mining==<br />
[[solo.ckpool]] has a testnet bitcoin solo mining implementation available, without the need to set up bitcoind locally.<br />
<br />
==External links==<br />
<br />
* [https://bitcointalk.org/?topic=4483.0 Testnet in a box forum topic]<br />
* [https://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/ Testnet-In-A-Box self-contained testnet]<br />
* [https://github.com/freewil/bitcoin-testnet-box Forked/Updated testnet-box]<br />
<br />
===Wallets===<br />
<br />
Online testnet wallets to help you test your application.<br />
<br />
* [http://testnetwallet.com/ TestnetWallet.com]<br />
<br />
===Faucets===<br />
<br />
Once you're done with your test coins, it is a nice gesture to send them back to the faucets, so they become available to other developers.<br />
<br />
* [http://bitcoinfaucet.uo1.net/ UO1 Testnet Faucet]<br />
* [http://tpfaucet.appspot.com/ TP's TestNet Faucet]<br />
* [https://play.google.com/store/apps/details?id=com.mycelium.testnetwallet Mycelium Testnet Wallet for Android with integrated Testnet "faucet" function (Local Trader)]<br />
* [http://kuttler.eu/bitcoin/btc/faucet/ nkuttler's Bitcoin Testnet Faucet], transactions are made through Joinmarket, a [[CoinJoin]] implementation<br />
* [https://accounts.blockcypher.com/testnet-faucet BlockCypher Testnet Faucet], also provided as a [http://dev.blockcypher.com/#faucets Testnet faucet API] for test automation<br />
* [https://testnet.manu.backend.hamburg/faucet flyingkiwi's TestNet Faucet]<br />
* [http://faucet.luis.im/ luis.im Mojocoin Testnet3 Faucet]<br />
<br />
===Block explorers===<br />
* [https://www.biteasy.com/testnet/blocks Biteasy.com Testnet Blockexplorer]<br />
* [http://blockexplorer.com/testnet Testnet Block Explorer]<br />
* [http://tbtc.blockr.io/ Bitcoin Testnet on Blockr.io]<br />
* [https://test-insight.bitpay.com/ Bitcoin Testnet on insight.bitpay.com]<br />
* [https://www.blocktrail.com/tBTC BlockTrail Testnet Explorer, Testnet API and Testnet Faucet]<br />
* [https://live.blockcypher.com/btc-testnet/ BlockCypher Testnet Explorer]<br />
[[Category:Technical]]<br />
[[Category:Developer]]<br />
<br />
{{Bitcoin Core documentation}}</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Testnet&diff=61420Testnet2016-08-07T00:00:58Z<p>Nkuttler: /* Faucets */</p>
<hr />
<div>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.<br />
<br />
Run bitcoin or bitcoind with the -testnet flag to use the testnet (or put testnet=1 in the bitcoin.conf file).<br />
<br />
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. On the December 21 of 2015 SegNet was deployed, to test the Wuille's Segregated Witness proposal.<br />
<br />
==Differences==<br />
* Default Bitcoin network protocol listen port is 18333 (instead of 8333)<br />
* Default RPC connection port is 18332 (instead of 8332)<br />
* Bootstrapping uses different DNS seeds.<br />
* A different value of ADDRESSVERSION field ensures no testnet Bitcoin addresses will work on the production network. (0x6F rather than 0x00)<br />
* The protocol message header bytes are 0x0B110907 (instead of 0xF9BEB4D9) <br />
* 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.<br />
* A new genesis block<br />
* The IsStandard() check is disabled so that non-standard transactions can be experimented with.<br />
<br />
==Genesis Block==<br />
<br />
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].<br />
The testnet was [https://github.com/gavinandresen/bitcoin-git/commit/feeb761ba07af74a7cd78b8c8f7c2a961fd9ea1c reset with a new genesis block] for the 0.7 bitcoin release.<br />
<br />
==Size==<br />
Testnet receives less transactions than the main block chain and is typically much smaller in size. As of June 2016 the size of the data on disk was 7GB, containing data for about 4 years worth of testnet activity. Downloading this data required about 6GB of network activity peaking at 2MB/s rate of transfer.<br />
<br />
==Mining==<br />
[[solo.ckpool]] has a testnet bitcoin solo mining implementation available, without the need to set up bitcoind locally.<br />
<br />
==External links==<br />
<br />
* [https://bitcointalk.org/?topic=4483.0 Testnet in a box forum topic]<br />
* [https://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/ Testnet-In-A-Box self-contained testnet]<br />
* [https://github.com/freewil/bitcoin-testnet-box Forked/Updated testnet-box]<br />
<br />
===Wallets===<br />
<br />
Online testnet wallets to help you test your application.<br />
<br />
* [http://testnetwallet.com/ TestnetWallet.com]<br />
<br />
===Faucets===<br />
<br />
Once you're done with your test coins, it is a nice gesture to send them back to the faucets, so they become available to other developers.<br />
<br />
* [http://bitcoinfaucet.uo1.net/ UO1 Testnet Faucet]<br />
* [http://tpfaucet.appspot.com/ TP's TestNet Faucet]<br />
* [http://faucet.luis.im/ luis.im Mojocoin Testnet3 Faucet]<br />
* [https://play.google.com/store/apps/details?id=com.mycelium.testnetwallet Mycelium Testnet Wallet for Android with integrated Testnet "faucet" function (Local Trader)]<br />
* [http://kuttler.eu/bitcoin/btc/faucet/ nkuttler's Bitcoin Testnet Faucet], transactions are made through Joinmarket, a [[CoinJoin]] implementation<br />
* [https://accounts.blockcypher.com/testnet-faucet BlockCypher Testnet Faucet], also provided as a [http://dev.blockcypher.com/#faucets Testnet faucet API] for test automation<br />
* [https://testnet.manu.backend.hamburg/faucet flyingkiwi's TestNet Faucet]<br />
<br />
===Block explorers===<br />
* [https://www.biteasy.com/testnet/blocks Biteasy.com Testnet Blockexplorer]<br />
* [http://blockexplorer.com/testnet Testnet Block Explorer]<br />
* [http://tbtc.blockr.io/ Bitcoin Testnet on Blockr.io]<br />
* [https://test-insight.bitpay.com/ Bitcoin Testnet on insight.bitpay.com]<br />
* [https://www.blocktrail.com/tBTC BlockTrail Testnet Explorer, Testnet API and Testnet Faucet]<br />
* [https://live.blockcypher.com/btc-testnet/ BlockCypher Testnet Explorer]<br />
[[Category:Technical]]<br />
[[Category:Developer]]<br />
<br />
{{Bitcoin Core documentation}}</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Testnet&diff=56021Testnet2015-04-08T12:42:17Z<p>Nkuttler: Add my testnet faucet to the list</p>
<hr />
<div>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.<br />
<br />
Run bitcoin or bitcoind with the -testnet flag to use the testnet (or put testnet=1 in the bitcoin.conf file).<br />
<br />
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.<br />
<br />
==Differences==<br />
* Default Bitcoin network protocol listen port is 18333 (instead of 8333)<br />
* Default RPC connection port is 18332 (instead of 8332)<br />
* Bootstrapping uses different DNS seeds.<br />
* A different value of ADDRESSVERSION field ensures no testnet Bitcoin addresses will work on the production network. (0x6F rather than 0x00)<br />
* The protocol message header bytes are 0x0B110907 (instead of 0xF9BEB4D9) <br />
* 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.<br />
* A new genesis block<br />
* The IsStandard() check is disabled so that non-standard transactions can be experimented with.<br />
<br />
==Genesis Block==<br />
<br />
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].<br />
The testnet was [https://github.com/gavinandresen/bitcoin-git/commit/feeb761ba07af74a7cd78b8c8f7c2a961fd9ea1c reset with a new genesis block] for the 0.7 bitcoin release.<br />
<br />
==Mining==<br />
[[solo.ckpool]] has a testnet bitcoin solo mining implementation available, without the need to set up bicoind locally.<br />
<br />
==External links==<br />
<br />
* [https://bitcointalk.org/?topic=4483.0 Testnet in a box forum topic]<br />
* [https://sourceforge.net/projects/bitcoin/files/Bitcoin/testnet-in-a-box/ Testnet-In-A-Box self-contained testnet]<br />
* [https://github.com/freewil/bitcoin-testnet-box Forked/Updated testnet-box]<br />
<br />
===Wallets===<br />
<br />
Online testnet wallets to help you test your application.<br />
<br />
* [http://testnetwallet.com/ TestnetWallet.com]<br />
<br />
===Faucets===<br />
<br />
Once you're done with your test coins, it is a nice gesture to send them back to the faucets, so they become available to other developers.<br />
<br />
* [http://bitcoinfaucet.uo1.net/ UO1 Testnet Faucet]<br />
* [http://faucet.haskoin.com/ Haskoin Testnet3 Faucet]<br />
* [http://tpfaucet.appspot.com/ TP's TestNet Faucet]<br />
* [http://faucet.luis.im/ luis.im Mojocoin Testnet3 Faucet]<br />
* [https://play.google.com/store/apps/details?id=com.mycelium.testnetwallet Mycelium Testnet Wallet for Android with integrated Testnet "faucet" function (Local Trader)]<br />
* [http://kuttler.eu/bitcoin/btc/faucet/ nkuttler's Bitcoin Testnet Faucet]<br />
<br />
===Block explorers===<br />
* [http://testnet.btclook.com/ BTCLook Testnet Explorer]<br />
* [https://www.biteasy.com/testnet/blocks Biteasy.com Testnet Blockexplorer]<br />
* [http://pool.qdoop.net:18331/chain/Testnet3 Testnet3 ABE based Block Explorer]<br />
* [http://blockexplorer.com/testnet Testnet Block Explorer]<br />
* [http://tbtc.blockr.io/ Bitcoin Testnet on Blockr.io]<br />
* [https://test-insight.bitpay.com/ Bitcoin Testnet on insight.bitpay.com]<br />
* [https://www.blocktrail.com/tBTC BlockTrail Testnet Explorer, Testnet API and Testnet Faucet]<br />
<br />
[[Category:Technical]]<br />
[[Category:Developer]]</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Bitcoin-24&diff=46611Bitcoin-242014-04-20T05:57:13Z<p>Nkuttler: /* History */</p>
<hr />
<div>Bitcoin-24.com was the biggest bitcoin exchange in Europe and was only surpassed by MtGox in terms of EURO volume.<br />
They offered instant registration and trading and imposed no restrictions and limits on withdrawals and deposits.<br />
EUROs could be deposited instantly by credit card and bank transfer. You could also trade in USD, which could be added by credit card, bank wire and MtGox Code. Bitcoin-24.com was not charging any fees for Bitcoin transactions, which only needed 3 confirmations to reach Bitcoin-24.com.<br />
<br />
A number of concerns had been raised[http://www.reddit.com/r/Bitcoin/comments/1c8yqr/scary_stackoverflow_question_from_bitcoin24s_admin/]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c9hoa/another_scary_stackoverflow_question_from/]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c77qg/bitcoin24_down_after_a_corrupt_trade_engine_gives/]<br />
[https://bitcointalk.org/index.php?topic=174600.0]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c7utl/bitcoin24com_the_polish_authority_closed_your_our/] about Bitcoin-24's stability and security. In april 2013 the site was closed by the authorities, some of the cusomer's fund are still tied up in litigation in 2014 [http://kuttler.eu/post/what-happened-bitcoin24/].<br />
<br />
<br />
==Deposits==<br />
<br />
===USD===<br />
* Bank wire transfer (International)<br />
* Credit card (instant through LiqPay)<br />
* [[Redeemable code]] ([[MtGox]], VouchX) (fee applies)<br />
<br />
===EUR===<br />
* SEPA/Bank wire<br />
* Sofort (instant within the EU)<br />
* Credit card (instant through LiqPay)<br />
* Redeemable Code (MtGox, VouchX) (fee applies)<br />
* GIROPay<br />
<br />
===GBP===<br />
* Bank wire transfer (International) [Converts to EUR]<br />
<br />
===PLN===<br />
* Bank wire transfer (International) [Converts to EUR]<br />
<br />
===BTC===<br />
* Bitcoins may be deposited free of charge.<br />
<br />
==Withdrawals==<br />
<br />
===USD===<br />
* ([[Skrill|Skrill (Moneybookers)]])<br />
* Bank wire transfer (International)<br />
<br />
===EUR===<br />
* SEPA wire<br />
* Cash (via DHL) (fee applies)<br />
<br />
===BTC===<br />
* A 0.0005 BTC transaction fee applies for each withdrawal of bitcoins.<br />
<br />
==History==<br />
<br />
* The exchange was first live in May, 2012.<br />
* In April, 2013 the exchange suspended operations after its bank in Poland closed the exchange's bank account.<br />
* In April 2014 the exchange reopened.<br />
<br />
==See Also==<br />
<br />
* [[Buying bitcoins]]<br />
* [[Selling bitcoins]]<br />
<br />
==External Links==<br />
* [http://www.Bitcoin-24.com Bitcoin-24.com] website<br />
<br />
==References==<br />
<references /><br />
<br />
[[Category:Exchanges]]<br />
[[Category:EWallets]]</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=User:Nkuttler&diff=45377User:Nkuttler2014-03-25T20:59:43Z<p>Nkuttler: Create my own page</p>
<hr />
<div>Hi, I'm Nicolas, I'm an op in various #bitcoin-foo channels on freenode and run a bitcoin testnet faucet. If you want to reach me it's probably best to try on IRC.<br />
<br />
My blog is at http://kuttler.eu/blog/ and the faucet is at http://kuttler.eu/bitcoin/btc/faucet/.</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Bitcoin-24&diff=45376Bitcoin-242014-03-25T20:53:39Z<p>Nkuttler: </p>
<hr />
<div>Bitcoin-24.com was the biggest bitcoin exchange in Europe and was only surpassed by MtGox in terms of EURO volume.<br />
They offered instant registration and trading and imposed no restrictions and limits on withdrawals and deposits.<br />
EUROs could be deposited instantly by credit card and bank transfer. You could also trade in USD, which could be added by credit card, bank wire and MtGox Code. Bitcoin-24.com was not charging any fees for Bitcoin transactions, which only needed 3 confirmations to reach Bitcoin-24.com.<br />
<br />
A number of concerns had been raised[http://www.reddit.com/r/Bitcoin/comments/1c8yqr/scary_stackoverflow_question_from_bitcoin24s_admin/]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c9hoa/another_scary_stackoverflow_question_from/]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c77qg/bitcoin24_down_after_a_corrupt_trade_engine_gives/]<br />
[https://bitcointalk.org/index.php?topic=174600.0]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c7utl/bitcoin24com_the_polish_authority_closed_your_our/] about Bitcoin-24's stability and security. In april 2013 the site was closed by the authorities, some of the cusomer's fund are still tied up in litigation in 2014 [http://kuttler.eu/post/what-happened-bitcoin24/].<br />
<br />
<br />
==Deposits==<br />
<br />
===USD===<br />
* Bank wire transfer (International)<br />
* Credit card (instant through LiqPay)<br />
* [[Redeemable code]] ([[MtGox]], VouchX) (fee applies)<br />
<br />
===EUR===<br />
* SEPA/Bank wire<br />
* Sofort (instant within the EU)<br />
* Credit card (instant through LiqPay)<br />
* Redeemable Code (MtGox, VouchX) (fee applies)<br />
* GIROPay<br />
<br />
===GBP===<br />
* Bank wire transfer (International) [Converts to EUR]<br />
<br />
===PLN===<br />
* Bank wire transfer (International) [Converts to EUR]<br />
<br />
===BTC===<br />
* Bitcoins may be deposited free of charge.<br />
<br />
==Withdrawals==<br />
<br />
===USD===<br />
* ([[Skrill|Skrill (Moneybookers)]])<br />
* Bank wire transfer (International)<br />
<br />
===EUR===<br />
* SEPA wire<br />
* Cash (via DHL) (fee applies)<br />
<br />
===BTC===<br />
* A 0.0005 BTC transaction fee applies for each withdrawal of bitcoins.<br />
<br />
==History==<br />
<br />
* The exchange was first live in May, 2012.<br />
* In April, 2013 the exchange suspended operations after its bank in Poland closed the exchange's bank account.<br />
<br />
==See Also==<br />
<br />
* [[Buying bitcoins]]<br />
* [[Selling bitcoins]]<br />
<br />
==External Links==<br />
* [http://www.Bitcoin-24.com Bitcoin-24.com] website<br />
<br />
==References==<br />
<references /><br />
<br />
[[Category:Exchanges]]<br />
[[Category:EWallets]]</div>Nkuttlerhttps://tests.bitcoin.it/w/index.php?title=Bitcoin-24&diff=45375Bitcoin-242014-03-25T20:52:41Z<p>Nkuttler: Welcome to 2014</p>
<hr />
<div>Bitcoin-24.com was the biggest bitcoin exchange in Europe and was only surpassed by MtGox in terms of EURO volume.<br />
They offered instant registration and trading and imposed no restrictions and limits on withdrawals and deposits.<br />
EUROs could be deposited instantly by credit card and bank transfer. You could also trade in USD, which could be added by credit card, bank wire and MtGox Code. Bitcoin-24.com was not charging any fees for Bitcoin transactions, which only needed 3 confirmations to reach Bitcoin-24.com.<br />
<br />
A number of concerns had been raised[http://www.reddit.com/r/Bitcoin/comments/1c8yqr/scary_stackoverflow_question_from_bitcoin24s_admin/]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c9hoa/another_scary_stackoverflow_question_from/]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c77qg/bitcoin24_down_after_a_corrupt_trade_engine_gives/]<br />
[https://bitcointalk.org/index.php?topic=174600.0]<br />
[http://www.reddit.com/r/Bitcoin/comments/1c7utl/bitcoin24com_the_polish_authority_closed_your_our/] about Bitcoin-24's stability and security. In april 2013 the site was closed by the authorities, some of the cusomer's fund are still tied up in litigation [http://kuttler.eu/post/what-happened-bitcoin24/] in 2014.<br />
<br />
<br />
==Deposits==<br />
<br />
===USD===<br />
* Bank wire transfer (International)<br />
* Credit card (instant through LiqPay)<br />
* [[Redeemable code]] ([[MtGox]], VouchX) (fee applies)<br />
<br />
===EUR===<br />
* SEPA/Bank wire<br />
* Sofort (instant within the EU)<br />
* Credit card (instant through LiqPay)<br />
* Redeemable Code (MtGox, VouchX) (fee applies)<br />
* GIROPay<br />
<br />
===GBP===<br />
* Bank wire transfer (International) [Converts to EUR]<br />
<br />
===PLN===<br />
* Bank wire transfer (International) [Converts to EUR]<br />
<br />
===BTC===<br />
* Bitcoins may be deposited free of charge.<br />
<br />
==Withdrawals==<br />
<br />
===USD===<br />
* ([[Skrill|Skrill (Moneybookers)]])<br />
* Bank wire transfer (International)<br />
<br />
===EUR===<br />
* SEPA wire<br />
* Cash (via DHL) (fee applies)<br />
<br />
===BTC===<br />
* A 0.0005 BTC transaction fee applies for each withdrawal of bitcoins.<br />
<br />
==History==<br />
<br />
* The exchange was first live in May, 2012.<br />
* In April, 2013 the exchange suspended operations after its bank in Poland closed the exchange's bank account.<br />
<br />
==See Also==<br />
<br />
* [[Buying bitcoins]]<br />
* [[Selling bitcoins]]<br />
<br />
==External Links==<br />
* [http://www.Bitcoin-24.com Bitcoin-24.com] website<br />
<br />
==References==<br />
<references /><br />
<br />
[[Category:Exchanges]]<br />
[[Category:EWallets]]</div>Nkuttler