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chainparams.cpp
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chainparams.cpp
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// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 The C-Bit Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "chainparams.h"
#include "consensus/merkle.h"
#include "tinyformat.h"
#include "util.h"
#include "utilstrencodings.h"
#include <assert.h>
#include <boost/assign/list_of.hpp>
#include "chainparamsseeds.h"
static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
CMutableTransaction txNew;
txNew.nVersion = 1;
txNew.vin.resize(1);
txNew.vout.resize(1);
txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
txNew.vout[0].nValue = genesisReward;
txNew.vout[0].scriptPubKey = genesisOutputScript;
CBlock genesis;
genesis.nTime = nTime;
genesis.nBits = nBits;
genesis.nNonce = nNonce;
genesis.nVersion = nVersion;
genesis.vtx.push_back(txNew);
genesis.hashPrevBlock.SetNull();
genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
return genesis;
}
/**
* Build the genesis block. Note that the output of its generation
* transaction cannot be spent since it did not originally exist in the
* database.
*
* CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
* CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
* CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
* CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
* vMerkleTree: 4a5e1e
*/
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
const char* pszTimestamp = "wired 05/Jan/2016 Thought Bitcoin Was Dead";
const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
/**
* Main network
*/
/**
* What makes a good checkpoint block?
* + Is surrounded by blocks with reasonable timestamps
* (no blocks before with a timestamp after, none after with
* timestamp before)
* + Contains no strange transactions
*/
class CMainParams : public CChainParams {
public:
CMainParams() {
strNetworkID = "main";
consensus.nSubsidyHalvingInterval = 210000;
consensus.nMajorityEnforceBlockUpgrade = 750;
consensus.nMajorityRejectBlockOutdated = 950;
consensus.nMajorityWindow = 1000;
consensus.BIP34Height = 0;
consensus.BIP34Hash = uint256S("0x00000000093e0ed39feedbc6d2f109303db2f5b993c8c8c853081e05ac840305");
consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = true;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1916; // 95% of 2016
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008
// Deployment of BIP68, BIP112, and BIP113.
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1462060800; // May 1st, 2016
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017
// Deployment of SegWit (BIP141, BIP143, and BIP147)
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1479168000; // November 15th, 2016.
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1510704000; // November 15th, 2017.
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x00000000000009b324f607bb93533ac8c5123bdd545dc8f3d3edf3b3ce59a04e");
/**
* The message start string is designed to be unlikely to occur in normal data.
* The characters are rarely used upper ASCII, not valid as UTF-8, and produce
* a large 32-bit integer with any alignment.
*/
pchMessageStart[0] = 0xde;
pchMessageStart[1] = 0xad;
pchMessageStart[2] = 0xfe;
pchMessageStart[3] = 0xd5;
nDefaultPort = 8289;
nPruneAfterHeight = 100000;
genesis = CreateGenesisBlock(1452742752, 1970051921, 0x1d00ffff, 1, 500 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x00000000093e0ed39feedbc6d2f109303db2f5b993c8c8c853081e05ac840305"));
assert(genesis.hashMerkleRoot == uint256S("0xb4aff042c4cbdf343abb994fe4e608c8f147d67b8bfdc25b0fb96a3e1b74ec13"));
//note
vSeeds.push_back(CDNSSeedData("192.241.179.42", "192.241.191.47")); // 2 seeds here
vSeeds.push_back(CDNSSeedData("192.241.191.47", "159.203.31.151")); // 2 more seeds here
//note
//note
//note
//note
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
fMiningRequiresPeers = false;
fDefaultConsistencyChecks = false;
fRequireStandard = true;
fMineBlocksOnDemand = true;
fTestnetToBeDeprecatedFieldRPC = false;
checkpointData = (CCheckpointData) {
boost::assign::map_list_of
( 0, uint256S("0x00000000093e0ed39feedbc6d2f109303db2f5b993c8c8c853081e05ac840305"))
( 22000, uint256S("0x00000000000009b324f607bb93533ac8c5123bdd545dc8f3d3edf3b3ce59a04e"))
( 44000, uint256S("0x0000000000076adcba387b1fbb4ab1d6bb207c776a06b793d063a800fdad462d"))
( 66000, uint256S("0x00000000008eecbc6c474d864fddf3f92c08d7f7ae9bc89dc4b92aba9b78524f"))
( 88000, uint256S("0x00000000000d89960dc76734cee62b3efc76b057137a37e8f19dea8e4c89b0c8"))
( 112000, uint256S("0x0000000000400df8146e7c623b877e31633f6b80c7eb1aa47da4d96f86079726"))
( 134000, uint256S("0x0000000000f0ed302503d2310bd8503a7f602dd3d75d4aefb9126f63d82a4fc7"))
( 156000, uint256S("0x00000000006d7ab5658977b49ad503e25c7290a622756aeeceef8754024262c4"))
( 178000, uint256S("0x000000001e70e9c19b2ca8a0d9fb08e5a2c4b9ac975dfd6380cbddbbc84781aa"))
( 200000, uint256S("0x0000000020111877b65057e574a3e01eef5722a039c880572b91ed89056b9c9d"))
( 222000, uint256S("0x000000000172d76de831029ec6be5ad9fa9bb0074905f875acb4d4aafea197fa"))
( 244000, uint256S("0x0000000025b8a2a65b7b95fda318eaa184e35ff761d40662cc64e6ecaeb11766"))
( 266000, uint256S("0x00000000af7624b4bf3033714c01015744ed9464d80fa743fdbd999596da97b1"))
( 418500, uint256S("0x00000000000000128508a46d7a81f01caed1d66921927423f1969a96ec8c68a4")),
1452742752, // * UNIX timestamp of last checkpoint block
0, // * total number of transactions between genesis and last checkpoint
// (the tx=... number in the SetBestChain debug.log lines)
0 // * estimated number of transactions per day after checkpoint
};
}
};
static CMainParams mainParams;
/**
* Testnet (v3)
*/
class CTestNetParams : public CChainParams {
public:
CTestNetParams() {
strNetworkID = "test";
consensus.nSubsidyHalvingInterval = 210000;
consensus.nMajorityEnforceBlockUpgrade = 51;
consensus.nMajorityRejectBlockOutdated = 75;
consensus.nMajorityWindow = 100;
consensus.BIP34Height = 0;
consensus.BIP34Hash = uint256S("0x00000000d3b1f74336bd21d7ef305a7561678a8e7ffd71ef19722727b2cc55fa");
consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = true;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008
// Deployment of BIP68, BIP112, and BIP113.
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1456790400; // March 1st, 2016
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017
// Deployment of SegWit (BIP141, BIP143, and BIP147)
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1462060800; // May 1st 2016
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1493596800; // May 1st 2017
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x00000000093e0ed39feedbc6d2f109303db2f5b993c8c8c853081e05ac840305");
pchMessageStart[0] = 0x0b;
pchMessageStart[1] = 0x10;
pchMessageStart[2] = 0xd9;
pchMessageStart[3] = 0x07;
nDefaultPort = 18289;
nPruneAfterHeight = 1000;
genesis = CreateGenesisBlock(1453028994, 3849025497, 0x1d00ffff, 1, 500 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x00000000d3b1f74336bd21d7ef305a7561678a8e7ffd71ef19722727b2cc55fa"));
assert(genesis.hashMerkleRoot == uint256S("0xb4aff042c4cbdf343abb994fe4e608c8f147d67b8bfdc25b0fb96a3e1b74ec13"));
vFixedSeeds.clear();
vSeeds.clear();
vSeeds.push_back(CDNSSeedData("159.203.31.151", "192.241.179.42"));
//note
//note
//note
//note
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
fMiningRequiresPeers = true;
fDefaultConsistencyChecks = false;
fRequireStandard = false;
fMineBlocksOnDemand = false;
fTestnetToBeDeprecatedFieldRPC = true;
checkpointData = (CCheckpointData) {
boost::assign::map_list_of
( 0, uint256S("00000000d3b1f74336bd21d7ef305a7561678a8e7ffd71ef19722727b2cc55fa")),
1453028994,
0,
200
};
}
};
static CTestNetParams testNetParams;
/**
* Regression test
*/
class CRegTestParams : public CChainParams {
public:
CRegTestParams() {
strNetworkID = "regtest";
consensus.nSubsidyHalvingInterval = 150;
consensus.nMajorityEnforceBlockUpgrade = 750;
consensus.nMajorityRejectBlockOutdated = 950;
consensus.nMajorityWindow = 1000;
consensus.BIP34Height = -1; // BIP34 has not necessarily activated on regtest
consensus.BIP34Hash = uint256();
consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = true;
consensus.fPowNoRetargeting = true;
consensus.nRuleChangeActivationThreshold = 108; // 75% for testchains
consensus.nMinerConfirmationWindow = 144; // Faster than normal for regtest (144 instead of 2016)
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 999999999999ULL;
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 999999999999ULL;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 999999999999ULL;
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x00");
pchMessageStart[0] = 0xba;
pchMessageStart[1] = 0xbd;
pchMessageStart[2] = 0xb5;
pchMessageStart[3] = 0xda;
nDefaultPort = 18999;
nPruneAfterHeight = 1000;
genesis = CreateGenesisBlock(1453028994, 3849025497, 0x1d00ffff, 1, 500 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x00000000d3b1f74336bd21d7ef305a7561678a8e7ffd71ef19722727b2cc55fa"));
assert(genesis.hashMerkleRoot == uint256S("0xb4aff042c4cbdf343abb994fe4e608c8f147d67b8bfdc25b0fb96a3e1b74ec13"));
vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
vSeeds.clear(); //!< Regtest mode doesn't have any DNS seeds.
fMiningRequiresPeers = false;
fDefaultConsistencyChecks = true;
fRequireStandard = false;
fMineBlocksOnDemand = true;
fTestnetToBeDeprecatedFieldRPC = false;
checkpointData = (CCheckpointData){
boost::assign::map_list_of
( 0, uint256S("00000000d3b1f74336bd21d7ef305a7561678a8e7ffd71ef19722727b2cc55fa")),
0,
0,
0
};
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
}
void UpdateBIP9Parameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout)
{
consensus.vDeployments[d].nStartTime = nStartTime;
consensus.vDeployments[d].nTimeout = nTimeout;
}
};
static CRegTestParams regTestParams;
static CChainParams *pCurrentParams = 0;
const CChainParams &Params() {
assert(pCurrentParams);
return *pCurrentParams;
}
CChainParams& Params(const std::string& chain)
{
if (chain == CBaseChainParams::MAIN)
return mainParams;
else if (chain == CBaseChainParams::TESTNET)
return testNetParams;
else if (chain == CBaseChainParams::REGTEST)
return regTestParams;
else
throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain));
}
void SelectParams(const std::string& network)
{
SelectBaseParams(network);
pCurrentParams = &Params(network);
}
void UpdateRegtestBIP9Parameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout)
{
regTestParams.UpdateBIP9Parameters(d, nStartTime, nTimeout);
}