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chainparams.cpp 16KB

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  1. // Copyright (c) 2010 Satoshi Nakamoto
  2. // Copyright (c) 2009-2015 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 "consensus/merkle.h"
  7. #include "tinyformat.h"
  8. #include "util.h"
  9. #include "utilstrencodings.h"
  10. #include <assert.h>
  11. #include <boost/assign/list_of.hpp>
  12. #include "chainparamsseeds.h"
  13. std::string CDNSSeedData::getHost(uint64_t requiredServiceBits) const {
  14. //use default host for non-filter-capable seeds or if we use the default service bits (NODE_NETWORK)
  15. if (!supportsServiceBitsFiltering || requiredServiceBits == NODE_NETWORK)
  16. return host;
  17. return strprintf("x%x.%s", requiredServiceBits, host);
  18. }
  19. static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
  20. {
  21. CMutableTransaction txNew;
  22. txNew.nVersion = 1;
  23. txNew.vin.resize(1);
  24. txNew.vout.resize(1);
  25. txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
  26. txNew.vout[0].nValue = genesisReward;
  27. txNew.vout[0].scriptPubKey = genesisOutputScript;
  28. CBlock genesis;
  29. genesis.nTime = nTime;
  30. genesis.nBits = nBits;
  31. genesis.nNonce = nNonce;
  32. genesis.nVersion = nVersion;
  33. genesis.vtx.push_back(txNew);
  34. genesis.hashPrevBlock.SetNull();
  35. genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
  36. return genesis;
  37. }
  38. /**
  39. * Build the genesis block. Note that the output of its generation
  40. * transaction cannot be spent since it did not originally exist in the
  41. * database.
  42. *
  43. * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
  44. * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
  45. * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
  46. * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
  47. * vMerkleTree: 4a5e1e
  48. */
  49. static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
  50. {
  51. const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
  52. const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
  53. return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
  54. }
  55. /**
  56. * Main network
  57. */
  58. /**
  59. * What makes a good checkpoint block?
  60. * + Is surrounded by blocks with reasonable timestamps
  61. * (no blocks before with a timestamp after, none after with
  62. * timestamp before)
  63. * + Contains no strange transactions
  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.BIP34Height = 227931;
  74. consensus.BIP34Hash = uint256S("0x000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8");
  75. consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  76. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  77. consensus.nPowTargetSpacing = 10 * 60;
  78. consensus.fPowAllowMinDifficultyBlocks = false;
  79. consensus.fPowNoRetargeting = false;
  80. consensus.nRuleChangeActivationThreshold = 1916; // 95% of 2016
  81. consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
  82. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
  83. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008
  84. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008
  85. // Deployment of BIP68, BIP112, and BIP113.
  86. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
  87. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1462060800; // May 1st, 2016
  88. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017
  89. /**
  90. * The message start string is designed to be unlikely to occur in normal data.
  91. * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  92. * a large 32-bit integer with any alignment.
  93. */
  94. pchMessageStart[0] = 0xf9;
  95. pchMessageStart[1] = 0xbe;
  96. pchMessageStart[2] = 0xb4;
  97. pchMessageStart[3] = 0xd9;
  98. nDefaultPort = 8333;
  99. nPruneAfterHeight = 100000;
  100. genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
  101. consensus.hashGenesisBlock = genesis.GetHash();
  102. assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
  103. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  104. vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
  105. vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
  106. vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
  107. vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
  108. vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
  109. vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch")); // Jonas Schnelli
  110. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
  111. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
  112. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
  113. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
  114. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
  115. vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
  116. fMiningRequiresPeers = true;
  117. fDefaultConsistencyChecks = false;
  118. fRequireStandard = true;
  119. fMineBlocksOnDemand = false;
  120. fTestnetToBeDeprecatedFieldRPC = false;
  121. checkpointData = (CCheckpointData) {
  122. boost::assign::map_list_of
  123. ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
  124. ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
  125. ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
  126. (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
  127. (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
  128. (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
  129. (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
  130. (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
  131. (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
  132. (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
  133. (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
  134. (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
  135. (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")),
  136. 1397080064, // * UNIX timestamp of last checkpoint block
  137. 36544669, // * total number of transactions between genesis and last checkpoint
  138. // (the tx=... number in the SetBestChain debug.log lines)
  139. 60000.0 // * estimated number of transactions per day after checkpoint
  140. };
  141. }
  142. };
  143. static CMainParams mainParams;
  144. /**
  145. * Testnet (v3)
  146. */
  147. class CTestNetParams : public CChainParams {
  148. public:
  149. CTestNetParams() {
  150. strNetworkID = "test";
  151. consensus.nSubsidyHalvingInterval = 210000;
  152. consensus.nMajorityEnforceBlockUpgrade = 51;
  153. consensus.nMajorityRejectBlockOutdated = 75;
  154. consensus.nMajorityWindow = 100;
  155. consensus.BIP34Height = 21111;
  156. consensus.BIP34Hash = uint256S("0x0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8");
  157. consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  158. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  159. consensus.nPowTargetSpacing = 10 * 60;
  160. consensus.fPowAllowMinDifficultyBlocks = true;
  161. consensus.fPowNoRetargeting = false;
  162. consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
  163. consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
  164. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
  165. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008
  166. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008
  167. // Deployment of BIP68, BIP112, and BIP113.
  168. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
  169. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1456790400; // March 1st, 2016
  170. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017
  171. pchMessageStart[0] = 0x0b;
  172. pchMessageStart[1] = 0x11;
  173. pchMessageStart[2] = 0x09;
  174. pchMessageStart[3] = 0x07;
  175. nDefaultPort = 18333;
  176. nPruneAfterHeight = 1000;
  177. genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
  178. consensus.hashGenesisBlock = genesis.GetHash();
  179. assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
  180. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  181. vFixedSeeds.clear();
  182. vSeeds.clear();
  183. // nodes with support for servicebits filtering should be at the top
  184. vSeeds.push_back(CDNSSeedData("testnetbitcoin.jonasschnelli.ch", "testnet-seed.bitcoin.jonasschnelli.ch", true));
  185. vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
  186. vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
  187. vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
  188. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
  189. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
  190. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
  191. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
  192. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
  193. vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
  194. fMiningRequiresPeers = true;
  195. fDefaultConsistencyChecks = false;
  196. fRequireStandard = false;
  197. fMineBlocksOnDemand = false;
  198. fTestnetToBeDeprecatedFieldRPC = true;
  199. checkpointData = (CCheckpointData) {
  200. boost::assign::map_list_of
  201. ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")),
  202. 1337966069,
  203. 1488,
  204. 300
  205. };
  206. }
  207. };
  208. static CTestNetParams testNetParams;
  209. /**
  210. * Regression test
  211. */
  212. class CRegTestParams : public CChainParams {
  213. public:
  214. CRegTestParams() {
  215. strNetworkID = "regtest";
  216. consensus.nSubsidyHalvingInterval = 150;
  217. consensus.nMajorityEnforceBlockUpgrade = 750;
  218. consensus.nMajorityRejectBlockOutdated = 950;
  219. consensus.nMajorityWindow = 1000;
  220. consensus.BIP34Height = -1; // BIP34 has not necessarily activated on regtest
  221. consensus.BIP34Hash = uint256();
  222. consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  223. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  224. consensus.nPowTargetSpacing = 10 * 60;
  225. consensus.fPowAllowMinDifficultyBlocks = true;
  226. consensus.fPowNoRetargeting = true;
  227. consensus.nRuleChangeActivationThreshold = 108; // 75% for testchains
  228. consensus.nMinerConfirmationWindow = 144; // Faster than normal for regtest (144 instead of 2016)
  229. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
  230. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
  231. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 999999999999ULL;
  232. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
  233. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 0;
  234. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 999999999999ULL;
  235. pchMessageStart[0] = 0xfa;
  236. pchMessageStart[1] = 0xbf;
  237. pchMessageStart[2] = 0xb5;
  238. pchMessageStart[3] = 0xda;
  239. nDefaultPort = 18444;
  240. nPruneAfterHeight = 1000;
  241. genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
  242. consensus.hashGenesisBlock = genesis.GetHash();
  243. assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
  244. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  245. vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
  246. vSeeds.clear(); //!< Regtest mode doesn't have any DNS seeds.
  247. fMiningRequiresPeers = false;
  248. fDefaultConsistencyChecks = true;
  249. fRequireStandard = false;
  250. fMineBlocksOnDemand = true;
  251. fTestnetToBeDeprecatedFieldRPC = false;
  252. checkpointData = (CCheckpointData){
  253. boost::assign::map_list_of
  254. ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")),
  255. 0,
  256. 0,
  257. 0
  258. };
  259. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
  260. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
  261. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
  262. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
  263. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
  264. }
  265. };
  266. static CRegTestParams regTestParams;
  267. static CChainParams *pCurrentParams = 0;
  268. const CChainParams &Params() {
  269. assert(pCurrentParams);
  270. return *pCurrentParams;
  271. }
  272. CChainParams& Params(const std::string& chain)
  273. {
  274. if (chain == CBaseChainParams::MAIN)
  275. return mainParams;
  276. else if (chain == CBaseChainParams::TESTNET)
  277. return testNetParams;
  278. else if (chain == CBaseChainParams::REGTEST)
  279. return regTestParams;
  280. else
  281. throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain));
  282. }
  283. void SelectParams(const std::string& network)
  284. {
  285. SelectBaseParams(network);
  286. pCurrentParams = &Params(network);
  287. }