src/chainparams.cpp

   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
   6 #include "chainparams.h"
   7
   8 #include "util.h"
   9 #include "utilstrencodings.h"
  10
  11 #include <assert.h>
  12
  13 #include <boost/assign/list_of.hpp>
  14
  15 #include "chainparamsseeds.h"
  16
  17 static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
  18 {
  19     CMutableTransaction txNew;
  20     txNew.nVersion = 1;
  21     txNew.vin.resize(1);
  22     txNew.vout.resize(1);
  23     txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
  24     txNew.vout[0].nValue = genesisReward;
  25     txNew.vout[0].scriptPubKey = genesisOutputScript;
  26
  27     CBlock genesis;
  28     genesis.nTime    = nTime;
  29     genesis.nBits    = nBits;
  30     genesis.nNonce   = nNonce;
  31     genesis.nVersion = nVersion;
  32     genesis.vtx.push_back(txNew);
  33     genesis.hashPrevBlock.SetNull();
  34     genesis.hashMerkleRoot = genesis.BuildMerkleTree();
  35     return genesis;
  36 }
  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 /**
  57  * Main network
  58  */
  59 /**
  60  * What makes a good checkpoint block?
  61  * + Is surrounded by blocks with reasonable timestamps
  62  *   (no blocks before with a timestamp after, none after with
  63  *    timestamp before)
  64  * + Contains no strange transactions
  65  */
  66
  67 class CMainParams : public CChainParams {
  68 public:
  69     CMainParams() {
  70         strNetworkID = "main";
  71         consensus.nSubsidyHalvingInterval = 210000;
  72         consensus.nMajorityEnforceBlockUpgrade = 750;
  73         consensus.nMajorityRejectBlockOutdated = 950;
  74         consensus.nMajorityWindow = 1000;
  75         consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  76         consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  77         consensus.nPowTargetSpacing = 10 * 60;
  78         consensus.fPowAllowMinDifficultyBlocks = false;
  79         /**
  80          * The message start string is designed to be unlikely to occur in normal data.
  81          * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  82          * a large 32-bit integer with any alignment.
  83          */
  84         pchMessageStart[0] = 0xf9;
  85         pchMessageStart[1] = 0xbe;
  86         pchMessageStart[2] = 0xb4;
  87         pchMessageStart[3] = 0xd9;
  88         vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
  89         nDefaultPort = 8333;
  90         nPruneAfterHeight = 100000;
  91
  92         genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
  93         consensus.hashGenesisBlock = genesis.GetHash();
  94         assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
  95         assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  96
  97         vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
  98         vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
  99         vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
 100         vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
 101         vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
 102         vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch")); // Jonas Schnelli
 103
 104         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
 105         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
 106         base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,128);
 107         base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
 108         base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
 109
 110         vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
 111
 112         fMiningRequiresPeers = true;
 113         fDefaultConsistencyChecks = false;
 114         fRequireStandard = true;
 115         fMineBlocksOnDemand = false;
 116         fTestnetToBeDeprecatedFieldRPC = false;
 117
 118         checkpointData = (CCheckpointData) {
 119             boost::assign::map_list_of
 120             ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
 121             ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
 122             ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
 123             (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
 124             (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
 125             (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
 126             (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
 127             (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
 128             (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
 129             (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
 130             (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
 131             (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
 132             (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")),
 133             1397080064, // * UNIX timestamp of last checkpoint block
 134             36544669,   // * total number of transactions between genesis and last checkpoint
 135                         //   (the tx=... number in the SetBestChain debug.log lines)
 136             60000.0     // * estimated number of transactions per day after checkpoint
 137         };
 138     }
 139 };
 140 static CMainParams mainParams;
 141
 142 /**
 143  * Testnet (v3)
 144  */
 145 class CTestNetParams : public CChainParams {
 146 public:
 147     CTestNetParams() {
 148         strNetworkID = "test";
 149         consensus.nSubsidyHalvingInterval = 210000;
 150         consensus.nMajorityEnforceBlockUpgrade = 51;
 151         consensus.nMajorityRejectBlockOutdated = 75;
 152         consensus.nMajorityWindow = 100;
 153         consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
 154         consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
 155         consensus.nPowTargetSpacing = 10 * 60;
 156         consensus.fPowAllowMinDifficultyBlocks = true;
 157         pchMessageStart[0] = 0x0b;
 158         pchMessageStart[1] = 0x11;
 159         pchMessageStart[2] = 0x09;
 160         pchMessageStart[3] = 0x07;
 161         vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
 162         nDefaultPort = 18333;
 163         nPruneAfterHeight = 1000;
 164
 165         genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
 166         consensus.hashGenesisBlock = genesis.GetHash();
 167         assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
 168         assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
 169
 170         vFixedSeeds.clear();
 171         vSeeds.clear();
 172         vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
 173         vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
 174         vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
 175         vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
 176
 177         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
 178         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
 179         base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,239);
 180         base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
 181         base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
 182
 183         vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
 184
 185         fMiningRequiresPeers = true;
 186         fDefaultConsistencyChecks = false;
 187         fRequireStandard = false;
 188         fMineBlocksOnDemand = false;
 189         fTestnetToBeDeprecatedFieldRPC = true;
 190
 191         checkpointData = (CCheckpointData) {
 192             boost::assign::map_list_of
 193             ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")),
 194             1337966069,
 195             1488,
 196             300
 197         };
 198
 199     }
 200 };
 201 static CTestNetParams testNetParams;
 202
 203 /**
 204  * Regression test
 205  */
 206 class CRegTestParams : public CChainParams {
 207 public:
 208     CRegTestParams() {
 209         strNetworkID = "regtest";
 210         consensus.nSubsidyHalvingInterval = 150;
 211         consensus.nMajorityEnforceBlockUpgrade = 750;
 212         consensus.nMajorityRejectBlockOutdated = 950;
 213         consensus.nMajorityWindow = 1000;
 214         consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
 215         consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
 216         consensus.nPowTargetSpacing = 10 * 60;
 217         consensus.fPowAllowMinDifficultyBlocks = true;
 218
 219         pchMessageStart[0] = 0xfa;
 220         pchMessageStart[1] = 0xbf;
 221         pchMessageStart[2] = 0xb5;
 222         pchMessageStart[3] = 0xda;
 223         nDefaultPort = 18444;
 224         nPruneAfterHeight = 1000;
 225
 226         genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
 227         consensus.hashGenesisBlock = genesis.GetHash();
 228         assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
 229         assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
 230
 231         vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
 232         vSeeds.clear();  //! Regtest mode doesn't have any DNS seeds.
 233
 234         fMiningRequiresPeers = false;
 235         fDefaultConsistencyChecks = true;
 236         fRequireStandard = false;
 237         fMineBlocksOnDemand = true;
 238         fTestnetToBeDeprecatedFieldRPC = false;
 239
 240         checkpointData = (CCheckpointData){
 241             boost::assign::map_list_of
 242             ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")),
 243             0,
 244             0,
 245             0
 246         };
 247         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
 248         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
 249         base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,239);
 250         base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
 251         base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
 252     }
 253 };
 254 static CRegTestParams regTestParams;
 255
 256 static CChainParams *pCurrentParams = 0;
 257
 258 const CChainParams &Params() {
 259     assert(pCurrentParams);
 260     return *pCurrentParams;
 261 }
 262
 263 CChainParams &Params(CBaseChainParams::Network network) {
 264     switch (network) {
 265         case CBaseChainParams::MAIN:
 266             return mainParams;
 267         case CBaseChainParams::TESTNET:
 268             return testNetParams;
 269         case CBaseChainParams::REGTEST:
 270             return regTestParams;
 271         default:
 272             assert(false && "Unimplemented network");
 273             return mainParams;
 274     }
 275 }
 276
 277 void SelectParams(CBaseChainParams::Network network) {
 278     SelectBaseParams(network);
 279     pCurrentParams = &Params(network);
 280 }
 281
 282 bool SelectParamsFromCommandLine()
 283 {
 284     CBaseChainParams::Network network = NetworkIdFromCommandLine();
 285     if (network == CBaseChainParams::MAX_NETWORK_TYPES)
 286         return false;
 287
 288     SelectParams(network);
 289     return true;
 290 }