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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. static Checkpoints::MapCheckpoints mapCheckpoints =
  23. boost::assign::map_list_of
  24. ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
  25. ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
  26. ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
  27. (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
  28. (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
  29. (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
  30. (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
  31. (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
  32. (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
  33. (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
  34. (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
  35. (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
  36. (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983"))
  37. ;
  38. static const Checkpoints::CCheckpointData data = {
  39. &mapCheckpoints,
  40. 1397080064, // * UNIX timestamp of last checkpoint block
  41. 36544669, // * total number of transactions between genesis and last checkpoint
  42. // (the tx=... number in the SetBestChain debug.log lines)
  43. 60000.0 // * estimated number of transactions per day after checkpoint
  44. };
  45. static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
  46. boost::assign::map_list_of
  47. ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
  48. ;
  49. static const Checkpoints::CCheckpointData dataTestnet = {
  50. &mapCheckpointsTestnet,
  51. 1337966069,
  52. 1488,
  53. 300
  54. };
  55. static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
  56. boost::assign::map_list_of
  57. ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
  58. ;
  59. static const Checkpoints::CCheckpointData dataRegtest = {
  60. &mapCheckpointsRegtest,
  61. 0,
  62. 0,
  63. 0
  64. };
  65. class CMainParams : public CChainParams {
  66. public:
  67. CMainParams() {
  68. strNetworkID = "main";
  69. consensus.nSubsidyHalvingInterval = 210000;
  70. consensus.nMajorityEnforceBlockUpgrade = 750;
  71. consensus.nMajorityRejectBlockOutdated = 950;
  72. consensus.nMajorityWindow = 1000;
  73. consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  74. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  75. consensus.nPowTargetSpacing = 10 * 60;
  76. consensus.fPowAllowMinDifficultyBlocks = false;
  77. /**
  78. * The message start string is designed to be unlikely to occur in normal data.
  79. * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  80. * a large 4-byte int at any alignment.
  81. */
  82. pchMessageStart[0] = 0xf9;
  83. pchMessageStart[1] = 0xbe;
  84. pchMessageStart[2] = 0xb4;
  85. pchMessageStart[3] = 0xd9;
  86. vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
  87. nDefaultPort = 8333;
  88. nMinerThreads = 0;
  89. nPruneAfterHeight = 100000;
  90. /**
  91. * Build the genesis block. Note that the output of the genesis coinbase cannot
  92. * be spent as it did not originally exist in the database.
  93. *
  94. * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
  95. * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
  96. * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
  97. * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
  98. * vMerkleTree: 4a5e1e
  99. */
  100. const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
  101. CMutableTransaction txNew;
  102. txNew.vin.resize(1);
  103. txNew.vout.resize(1);
  104. txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
  105. txNew.vout[0].nValue = 50 * COIN;
  106. txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
  107. genesis.vtx.push_back(txNew);
  108. genesis.hashPrevBlock.SetNull();
  109. genesis.hashMerkleRoot = genesis.BuildMerkleTree();
  110. genesis.nVersion = 1;
  111. genesis.nTime = 1231006505;
  112. genesis.nBits = 0x1d00ffff;
  113. genesis.nNonce = 2083236893;
  114. consensus.hashGenesisBlock = genesis.GetHash();
  115. assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
  116. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  117. vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
  118. vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
  119. vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
  120. vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Addy Yeow
  121. vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
  122. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
  123. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
  124. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
  125. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
  126. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
  127. vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
  128. fRequireRPCPassword = true;
  129. fMiningRequiresPeers = true;
  130. fDefaultConsistencyChecks = false;
  131. fRequireStandard = true;
  132. fMineBlocksOnDemand = false;
  133. fTestnetToBeDeprecatedFieldRPC = false;
  134. }
  135. const Checkpoints::CCheckpointData& Checkpoints() const
  136. {
  137. return data;
  138. }
  139. };
  140. static CMainParams mainParams;
  141. /**
  142. * Testnet (v3)
  143. */
  144. class CTestNetParams : public CMainParams {
  145. public:
  146. CTestNetParams() {
  147. strNetworkID = "test";
  148. consensus.nMajorityEnforceBlockUpgrade = 51;
  149. consensus.nMajorityRejectBlockOutdated = 75;
  150. consensus.nMajorityWindow = 100;
  151. consensus.fPowAllowMinDifficultyBlocks = true;
  152. pchMessageStart[0] = 0x0b;
  153. pchMessageStart[1] = 0x11;
  154. pchMessageStart[2] = 0x09;
  155. pchMessageStart[3] = 0x07;
  156. vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
  157. nDefaultPort = 18333;
  158. nMinerThreads = 0;
  159. nPruneAfterHeight = 1000;
  160. //! Modify the testnet genesis block so the timestamp is valid for a later start.
  161. genesis.nTime = 1296688602;
  162. genesis.nNonce = 414098458;
  163. consensus.hashGenesisBlock = genesis.GetHash();
  164. assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
  165. vFixedSeeds.clear();
  166. vSeeds.clear();
  167. vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
  168. vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
  169. vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
  170. vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
  171. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
  172. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
  173. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
  174. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
  175. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
  176. vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
  177. fRequireRPCPassword = true;
  178. fMiningRequiresPeers = true;
  179. fDefaultConsistencyChecks = false;
  180. fRequireStandard = false;
  181. fMineBlocksOnDemand = false;
  182. fTestnetToBeDeprecatedFieldRPC = true;
  183. }
  184. const Checkpoints::CCheckpointData& Checkpoints() const
  185. {
  186. return dataTestnet;
  187. }
  188. };
  189. static CTestNetParams testNetParams;
  190. /**
  191. * Regression test
  192. */
  193. class CRegTestParams : public CTestNetParams {
  194. public:
  195. CRegTestParams() {
  196. strNetworkID = "regtest";
  197. consensus.nSubsidyHalvingInterval = 150;
  198. consensus.nMajorityEnforceBlockUpgrade = 750;
  199. consensus.nMajorityRejectBlockOutdated = 950;
  200. consensus.nMajorityWindow = 1000;
  201. consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  202. pchMessageStart[0] = 0xfa;
  203. pchMessageStart[1] = 0xbf;
  204. pchMessageStart[2] = 0xb5;
  205. pchMessageStart[3] = 0xda;
  206. nMinerThreads = 1;
  207. genesis.nTime = 1296688602;
  208. genesis.nBits = 0x207fffff;
  209. genesis.nNonce = 2;
  210. consensus.hashGenesisBlock = genesis.GetHash();
  211. nDefaultPort = 18444;
  212. assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
  213. nPruneAfterHeight = 1000;
  214. vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
  215. vSeeds.clear(); //! Regtest mode doesn't have any DNS seeds.
  216. fRequireRPCPassword = false;
  217. fMiningRequiresPeers = false;
  218. fDefaultConsistencyChecks = true;
  219. fRequireStandard = false;
  220. fMineBlocksOnDemand = true;
  221. fTestnetToBeDeprecatedFieldRPC = false;
  222. }
  223. const Checkpoints::CCheckpointData& Checkpoints() const
  224. {
  225. return dataRegtest;
  226. }
  227. };
  228. static CRegTestParams regTestParams;
  229. static CChainParams *pCurrentParams = 0;
  230. const CChainParams &Params() {
  231. assert(pCurrentParams);
  232. return *pCurrentParams;
  233. }
  234. CChainParams &Params(CBaseChainParams::Network network) {
  235. switch (network) {
  236. case CBaseChainParams::MAIN:
  237. return mainParams;
  238. case CBaseChainParams::TESTNET:
  239. return testNetParams;
  240. case CBaseChainParams::REGTEST:
  241. return regTestParams;
  242. default:
  243. assert(false && "Unimplemented network");
  244. return mainParams;
  245. }
  246. }
  247. void SelectParams(CBaseChainParams::Network network) {
  248. SelectBaseParams(network);
  249. pCurrentParams = &Params(network);
  250. }
  251. bool SelectParamsFromCommandLine()
  252. {
  253. CBaseChainParams::Network network = NetworkIdFromCommandLine();
  254. if (network == CBaseChainParams::MAX_NETWORK_TYPES)
  255. return false;
  256. SelectParams(network);
  257. return true;
  258. }