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chainparams.cpp 12KB

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  1. // Copyright (c) 2010 Satoshi Nakamoto
  2. // Copyright (c) 2009-2014 The Bitcoin Core developers
  3. // Distributed under the MIT software license, see the accompanying
  4. // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  5. #include "chainparams.h"
  6. #include "util.h"
  7. #include "utilstrencodings.h"
  8. #include <assert.h>
  9. #include <boost/assign/list_of.hpp>
  10. using namespace std;
  11. #include "chainparamsseeds.h"
  12. /**
  13. * Main network
  14. */
  15. /**
  16. * What makes a good checkpoint block?
  17. * + Is surrounded by blocks with reasonable timestamps
  18. * (no blocks before with a timestamp after, none after with
  19. * timestamp before)
  20. * + Contains no strange transactions
  21. */
  22. class CMainParams : public CChainParams {
  23. public:
  24. CMainParams() {
  25. strNetworkID = "main";
  26. consensus.nSubsidyHalvingInterval = 210000;
  27. consensus.nMajorityEnforceBlockUpgrade = 750;
  28. consensus.nMajorityRejectBlockOutdated = 950;
  29. consensus.nMajorityWindow = 1000;
  30. consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  31. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  32. consensus.nPowTargetSpacing = 10 * 60;
  33. consensus.fPowAllowMinDifficultyBlocks = false;
  34. /**
  35. * The message start string is designed to be unlikely to occur in normal data.
  36. * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  37. * a large 32-bit integer with any alignment.
  38. */
  39. pchMessageStart[0] = 0xf9;
  40. pchMessageStart[1] = 0xbe;
  41. pchMessageStart[2] = 0xb4;
  42. pchMessageStart[3] = 0xd9;
  43. vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
  44. nDefaultPort = 8333;
  45. nMinerThreads = 0;
  46. nPruneAfterHeight = 100000;
  47. /**
  48. * Build the genesis block. Note that the output of its generation
  49. * transaction cannot be spent since it did not originally exist in the
  50. * database.
  51. *
  52. * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
  53. * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
  54. * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
  55. * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
  56. * vMerkleTree: 4a5e1e
  57. */
  58. const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
  59. CMutableTransaction txNew;
  60. txNew.vin.resize(1);
  61. txNew.vout.resize(1);
  62. txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
  63. txNew.vout[0].nValue = 50 * COIN;
  64. txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
  65. genesis.vtx.push_back(txNew);
  66. genesis.hashPrevBlock.SetNull();
  67. genesis.hashMerkleRoot = genesis.BuildMerkleTree();
  68. genesis.nVersion = 1;
  69. genesis.nTime = 1231006505;
  70. genesis.nBits = 0x1d00ffff;
  71. genesis.nNonce = 2083236893;
  72. consensus.hashGenesisBlock = genesis.GetHash();
  73. assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
  74. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  75. vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
  76. vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
  77. vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
  78. vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
  79. vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
  80. vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch")); // Jonas Schnelli
  81. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
  82. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
  83. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
  84. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
  85. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
  86. vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
  87. fRequireRPCPassword = true;
  88. fMiningRequiresPeers = true;
  89. fDefaultConsistencyChecks = false;
  90. fRequireStandard = true;
  91. fMineBlocksOnDemand = false;
  92. fTestnetToBeDeprecatedFieldRPC = false;
  93. checkpointData = (Checkpoints::CCheckpointData) {
  94. boost::assign::map_list_of
  95. ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
  96. ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
  97. ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
  98. (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
  99. (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
  100. (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
  101. (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
  102. (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
  103. (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
  104. (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
  105. (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
  106. (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
  107. (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")),
  108. 1397080064, // * UNIX timestamp of last checkpoint block
  109. 36544669, // * total number of transactions between genesis and last checkpoint
  110. // (the tx=... number in the SetBestChain debug.log lines)
  111. 60000.0 // * estimated number of transactions per day after checkpoint
  112. };
  113. }
  114. };
  115. static CMainParams mainParams;
  116. /**
  117. * Testnet (v3)
  118. */
  119. class CTestNetParams : public CMainParams {
  120. public:
  121. CTestNetParams() {
  122. strNetworkID = "test";
  123. consensus.nMajorityEnforceBlockUpgrade = 51;
  124. consensus.nMajorityRejectBlockOutdated = 75;
  125. consensus.nMajorityWindow = 100;
  126. consensus.fPowAllowMinDifficultyBlocks = true;
  127. pchMessageStart[0] = 0x0b;
  128. pchMessageStart[1] = 0x11;
  129. pchMessageStart[2] = 0x09;
  130. pchMessageStart[3] = 0x07;
  131. vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
  132. nDefaultPort = 18333;
  133. nMinerThreads = 0;
  134. nPruneAfterHeight = 1000;
  135. //! Modify the testnet genesis block so the timestamp is valid for a later start.
  136. genesis.nTime = 1296688602;
  137. genesis.nNonce = 414098458;
  138. consensus.hashGenesisBlock = genesis.GetHash();
  139. assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
  140. vFixedSeeds.clear();
  141. vSeeds.clear();
  142. vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
  143. vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
  144. vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
  145. vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
  146. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
  147. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
  148. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
  149. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
  150. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
  151. vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
  152. fRequireRPCPassword = true;
  153. fMiningRequiresPeers = true;
  154. fDefaultConsistencyChecks = false;
  155. fRequireStandard = false;
  156. fMineBlocksOnDemand = false;
  157. fTestnetToBeDeprecatedFieldRPC = true;
  158. checkpointData = (Checkpoints::CCheckpointData) {
  159. boost::assign::map_list_of
  160. ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")),
  161. 1337966069,
  162. 1488,
  163. 300
  164. };
  165. }
  166. };
  167. static CTestNetParams testNetParams;
  168. /**
  169. * Regression test
  170. */
  171. class CRegTestParams : public CTestNetParams {
  172. public:
  173. CRegTestParams() {
  174. strNetworkID = "regtest";
  175. consensus.nSubsidyHalvingInterval = 150;
  176. consensus.nMajorityEnforceBlockUpgrade = 750;
  177. consensus.nMajorityRejectBlockOutdated = 950;
  178. consensus.nMajorityWindow = 1000;
  179. consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  180. pchMessageStart[0] = 0xfa;
  181. pchMessageStart[1] = 0xbf;
  182. pchMessageStart[2] = 0xb5;
  183. pchMessageStart[3] = 0xda;
  184. nMinerThreads = 1;
  185. genesis.nTime = 1296688602;
  186. genesis.nBits = 0x207fffff;
  187. genesis.nNonce = 2;
  188. consensus.hashGenesisBlock = genesis.GetHash();
  189. nDefaultPort = 18444;
  190. assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
  191. nPruneAfterHeight = 1000;
  192. vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
  193. vSeeds.clear(); //! Regtest mode doesn't have any DNS seeds.
  194. fRequireRPCPassword = false;
  195. fMiningRequiresPeers = false;
  196. fDefaultConsistencyChecks = true;
  197. fRequireStandard = false;
  198. fMineBlocksOnDemand = true;
  199. fTestnetToBeDeprecatedFieldRPC = false;
  200. checkpointData = (Checkpoints::CCheckpointData){
  201. boost::assign::map_list_of
  202. ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")),
  203. 0,
  204. 0,
  205. 0
  206. };
  207. }
  208. };
  209. static CRegTestParams regTestParams;
  210. static CChainParams *pCurrentParams = 0;
  211. const CChainParams &Params() {
  212. assert(pCurrentParams);
  213. return *pCurrentParams;
  214. }
  215. CChainParams &Params(CBaseChainParams::Network network) {
  216. switch (network) {
  217. case CBaseChainParams::MAIN:
  218. return mainParams;
  219. case CBaseChainParams::TESTNET:
  220. return testNetParams;
  221. case CBaseChainParams::REGTEST:
  222. return regTestParams;
  223. default:
  224. assert(false && "Unimplemented network");
  225. return mainParams;
  226. }
  227. }
  228. void SelectParams(CBaseChainParams::Network network) {
  229. SelectBaseParams(network);
  230. pCurrentParams = &Params(network);
  231. }
  232. bool SelectParamsFromCommandLine()
  233. {
  234. CBaseChainParams::Network network = NetworkIdFromCommandLine();
  235. if (network == CBaseChainParams::MAX_NETWORK_TYPES)
  236. return false;
  237. SelectParams(network);
  238. return true;
  239. }