/
chainparams.cpp
508 lines (449 loc) · 20.9 KB
/
chainparams.cpp
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// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2016 The Bitcoin Core developers
// Copyright (c) 2017-2018 The Bitcoin 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 <chainparamsseeds.h>
#include <consensus/merkle.h>
#include <tinyformat.h>
#include <util.h>
#include <utilstrencodings.h>
#include <cassert>
static CBlock CreateGenesisBlock(const char *pszTimestamp,
const CScript &genesisOutputScript,
uint32_t nTime, uint32_t nNonce,
uint32_t nBits, int32_t nVersion,
const Amount genesisReward) {
CMutableTransaction txNew;
txNew.nVersion = 1;
txNew.vin.resize(1);
txNew.vout.resize(1);
txNew.vin[0].scriptSig =
CScript() << 486604799 << CScriptNum(4)
<< std::vector<uint8_t>((const uint8_t *)pszTimestamp,
(const uint8_t *)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(MakeTransactionRef(std::move(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 Amount genesisReward) {
const char *pszTimestamp =
"The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
const CScript genesisOutputScript =
CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909"
"a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112"
"de5c384df7ba0b8d578a4c702b6bf11d5f")
<< 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.BIP34Height = 227931;
consensus.BIP34Hash = uint256S(
"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8");
// 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
consensus.BIP65Height = 388381;
// 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
consensus.BIP66Height = 363725;
// 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
consensus.CSVHeight = 419328;
consensus.powLimit = uint256S(
"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
// two weeks
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60;
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = false;
consensus.fPowNoRetargeting = false;
// 95% of 2016
consensus.nRuleChangeActivationThreshold = 1916;
// nPowTargetTimespan / nPowTargetSpacing
consensus.nMinerConfirmationWindow = 2016;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
// January 1, 2008
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime =
1199145601;
// December 31, 2008
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout =
1230767999;
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S(
"000000000000000000000000000000000000000000e8edfe3e3b6bddc3523c75");
// By default assume that the signatures in ancestors of this block are
// valid.
consensus.defaultAssumeValid = uint256S(
"00000000000000000042fdb6b3730df1508a405ef98b1bdb857d4238b1c0a597");
// August 1, 2017 hard fork
consensus.uahfHeight = 478558;
// November 13, 2017 hard fork
consensus.daaHeight = 504031;
// November 15, 2018 hard fork
consensus.magneticAnomalyHeight = 556766;
// Wed, 15 May 2019 12:00:00 UTC hard fork
consensus.greatWallActivationTime = 1557921600;
// Nov 15, 2019 12:00:00 UTC protocol upgrade
consensus.gravitonActivationTime = 1573819200;
/**
* 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.
*/
diskMagic[0] = 0xf9;
diskMagic[1] = 0xbe;
diskMagic[2] = 0xb4;
diskMagic[3] = 0xd9;
netMagic[0] = 0xe3;
netMagic[1] = 0xe1;
netMagic[2] = 0xf3;
netMagic[3] = 0xe8;
nDefaultPort = 8333;
nPruneAfterHeight = 100000;
genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1,
50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock ==
uint256S("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1"
"b60a8ce26f"));
assert(genesis.hashMerkleRoot ==
uint256S("4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b"
"7afdeda33b"));
// Note that of those which support the service bits prefix, most only
// support a subset of possible options. This is fine at runtime as
// we'll fall back to using them as a oneshot if they dont support the
// service bits we want, but we should get them updated to support all
// service bits wanted by any release ASAP to avoid it where possible.
// Bitcoin ABC seeder
vSeeds.emplace_back("seed.bitcoinabc.org");
// bitcoinforks seeders
vSeeds.emplace_back("seed-abc.bitcoinforks.org");
// BU backed seeder
vSeeds.emplace_back("btccash-seeder.bitcoinunlimited.info");
// Bitprim
vSeeds.emplace_back("seed.bitprim.org");
// Amaury SÉCHET
vSeeds.emplace_back("seed.deadalnix.me");
// criptolayer.net
vSeeds.emplace_back("seeder.criptolayer.net");
base58Prefixes[PUBKEY_ADDRESS] = std::vector<uint8_t>(1, 0);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<uint8_t>(1, 5);
base58Prefixes[SECRET_KEY] = std::vector<uint8_t>(1, 128);
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
cashaddrPrefix = "bitcoincash";
vFixedSeeds = std::vector<SeedSpec6>(
pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
fDefaultConsistencyChecks = false;
fRequireStandard = true;
fMineBlocksOnDemand = false;
checkpointData = {
.mapCheckpoints = {
{11111, uint256S("0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee"
"92559f542fdb26e7c1d")},
{33333, uint256S("000000002dd5588a74784eaa7ab0507a18ad16a236e7b"
"1ce69f00d7ddfb5d0a6")},
{74000, uint256S("0000000000573993a3c9e41ce34471c079dcf5f52a0e8"
"24a81e7f953b8661a20")},
{105000, uint256S("00000000000291ce28027faea320c8d2b054b2e0fe44"
"a773f3eefb151d6bdc97")},
{134444, uint256S("00000000000005b12ffd4cd315cd34ffd4a594f430ac"
"814c91184a0d42d2b0fe")},
{168000, uint256S("000000000000099e61ea72015e79632f216fe6cb33d7"
"899acb35b75c8303b763")},
{193000, uint256S("000000000000059f452a5f7340de6682a977387c1701"
"0ff6e6c3bd83ca8b1317")},
{210000, uint256S("000000000000048b95347e83192f69cf0366076336c6"
"39f9b7228e9ba171342e")},
{216116, uint256S("00000000000001b4f4b433e81ee46494af945cf96014"
"816a4e2370f11b23df4e")},
{225430, uint256S("00000000000001c108384350f74090433e7fcf79a606"
"b8e797f065b130575932")},
{250000, uint256S("000000000000003887df1f29024b06fc2200b55f8af8"
"f35453d7be294df2d214")},
{279000, uint256S("0000000000000001ae8c72a0b0c301f67e3afca10e81"
"9efa9041e458e9bd7e40")},
{295000, uint256S("00000000000000004d9b4ef50f0f9d686fd69db2e03a"
"f35a100370c64632a983")},
// UAHF fork block.
{478558, uint256S("0000000000000000011865af4122fe3b144e2cbeea86"
"142e8ff2fb4107352d43")},
// Nov, 13 DAA activation block.
{504031, uint256S("0000000000000000011ebf65b60d0a3de80b8175be70"
"9d653b4c1a1beeb6ab9c")},
// Monolith activation.
{530359, uint256S("0000000000000000011ada8bd08f46074f44a8f15539"
"6f43e38acf9501c49103")},
// Magnetic anomaly activation.
{556767, uint256S("0000000000000000004626ff6e3b936941d341c5932e"
"ce4357eeccac44e6d56c")},
}};
// Data as of block
// 000000000000000001d2ce557406b017a928be25ee98906397d339c3f68eec5d
// (height 523992).
chainTxData = ChainTxData{
// UNIX timestamp of last known number of transactions.
1522608016,
// Total number of transactions between genesis and that timestamp
// (the tx=... number in the SetBestChain debug.log lines)
248589038,
// Estimated number of transactions per second after that timestamp.
3.2};
}
};
/**
* Testnet (v3)
*/
class CTestNetParams : public CChainParams {
public:
CTestNetParams() {
strNetworkID = "test";
consensus.nSubsidyHalvingInterval = 210000;
consensus.BIP34Height = 21111;
consensus.BIP34Hash = uint256S(
"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8");
// 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
consensus.BIP65Height = 581885;
// 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
consensus.BIP66Height = 330776;
// 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
consensus.CSVHeight = 770112;
consensus.powLimit = uint256S(
"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
// two weeks
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60;
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = true;
consensus.fPowNoRetargeting = false;
// 75% for testchains
consensus.nRuleChangeActivationThreshold = 1512;
// nPowTargetTimespan / nPowTargetSpacing
consensus.nMinerConfirmationWindow = 2016;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
// January 1, 2008
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime =
1199145601;
// December 31, 2008
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout =
1230767999;
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S(
"000000000000000000000000000000000000000000000043cb761ba833f844c5");
// By default assume that the signatures in ancestors of this block are
// valid.
consensus.defaultAssumeValid = uint256S(
"00000000000002cb911c0a756a24c2fe6c1a29acaede3569ce430b95d8ff012d");
// August 1, 2017 hard fork
consensus.uahfHeight = 1155875;
// November 13, 2017 hard fork
consensus.daaHeight = 1188697;
// November 15, 2018 hard fork
consensus.magneticAnomalyHeight = 1267996;
// Wed, 15 May 2019 12:00:00 UTC hard fork
consensus.greatWallActivationTime = 1557921600;
// Nov 15, 2019 12:00:00 UTC protocol upgrade
consensus.gravitonActivationTime = 1573819200;
diskMagic[0] = 0x0b;
diskMagic[1] = 0x11;
diskMagic[2] = 0x09;
diskMagic[3] = 0x07;
netMagic[0] = 0xf4;
netMagic[1] = 0xe5;
netMagic[2] = 0xf3;
netMagic[3] = 0xf4;
nDefaultPort = 18333;
nPruneAfterHeight = 1000;
genesis =
CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock ==
uint256S("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526"
"f8d77f4943"));
assert(genesis.hashMerkleRoot ==
uint256S("4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b"
"7afdeda33b"));
vFixedSeeds.clear();
vSeeds.clear();
// nodes with support for servicebits filtering should be at the top
// Bitcoin ABC seeder
vSeeds.emplace_back("testnet-seed.bitcoinabc.org");
// bitcoinforks seeders
vSeeds.emplace_back("testnet-seed-abc.bitcoinforks.org");
// Bitprim
vSeeds.emplace_back("testnet-seed.bitprim.org");
// Amaury SÉCHET
vSeeds.emplace_back("testnet-seed.deadalnix.me");
// criptolayer.net
vSeeds.emplace_back("testnet-seeder.criptolayer.net");
base58Prefixes[PUBKEY_ADDRESS] = std::vector<uint8_t>(1, 111);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<uint8_t>(1, 196);
base58Prefixes[SECRET_KEY] = std::vector<uint8_t>(1, 239);
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
cashaddrPrefix = "bchtest";
vFixedSeeds = std::vector<SeedSpec6>(
pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
fDefaultConsistencyChecks = false;
fRequireStandard = false;
fMineBlocksOnDemand = false;
checkpointData = {
.mapCheckpoints = {
{546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345"
"d31b1bcebf76acb70")},
// UAHF fork block.
{1155875, uint256S("00000000f17c850672894b9a75b63a1e72830bbd5f4"
"c8889b5c1a80e7faef138")},
// Nov, 13. DAA activation block.
{1188697, uint256S("0000000000170ed0918077bde7b4d36cc4c91be69fa"
"09211f748240dabe047fb")},
}};
// Data as of block
// 000000000005b07ecf85563034d13efd81c1a29e47e22b20f4fc6919d5b09cd6
// (height 1223263)
chainTxData = ChainTxData{1522608381, 15052068, 0.15};
}
};
/**
* Regression test
*/
class CRegTestParams : public CChainParams {
public:
CRegTestParams() {
strNetworkID = "regtest";
consensus.nSubsidyHalvingInterval = 150;
// BIP34 has not activated on regtest (far in the future so block v1 are
// not rejected in tests)
consensus.BIP34Height = 100000000;
consensus.BIP34Hash = uint256();
// BIP65 activated on regtest (Used in rpc activation tests)
consensus.BIP65Height = 1351;
// BIP66 activated on regtest (Used in rpc activation tests)
consensus.BIP66Height = 1251;
// CSV activated on regtest (Used in rpc activation tests)
consensus.CSVHeight = 576;
consensus.powLimit = uint256S(
"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
// two weeks
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60;
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = true;
consensus.fPowNoRetargeting = true;
// 75% for testchains
consensus.nRuleChangeActivationThreshold = 108;
// Faster than normal for regtest (144 instead of 2016)
consensus.nMinerConfirmationWindow = 144;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout =
999999999999ULL;
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x00");
// By default assume that the signatures in ancestors of this block are
// valid.
consensus.defaultAssumeValid = uint256S("0x00");
// UAHF is always enabled on regtest.
consensus.uahfHeight = 0;
// November 13, 2017 hard fork is always on on regtest.
consensus.daaHeight = 0;
// November 15, 2018 hard fork is always on on regtest.
consensus.magneticAnomalyHeight = 0;
// Wed, 15 May 2019 12:00:00 UTC hard fork
consensus.greatWallActivationTime = 1557921600;
// Nov 15, 2019 12:00:00 UTC protocol upgrade
consensus.gravitonActivationTime = 1573819200;
diskMagic[0] = 0xfa;
diskMagic[1] = 0xbf;
diskMagic[2] = 0xb5;
diskMagic[3] = 0xda;
netMagic[0] = 0xda;
netMagic[1] = 0xb5;
netMagic[2] = 0xbf;
netMagic[3] = 0xfa;
nDefaultPort = 18444;
nPruneAfterHeight = 1000;
genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock ==
uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b"
"1a11466e2206"));
assert(genesis.hashMerkleRoot ==
uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab212"
"7b7afdeda33b"));
//!< Regtest mode doesn't have any fixed seeds.
vFixedSeeds.clear();
//!< Regtest mode doesn't have any DNS seeds.
vSeeds.clear();
fDefaultConsistencyChecks = true;
fRequireStandard = false;
fMineBlocksOnDemand = true;
checkpointData = {.mapCheckpoints = {
{0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5"
"beb436012afca590b1a11466e2206")},
}};
chainTxData = ChainTxData{0, 0, 0};
base58Prefixes[PUBKEY_ADDRESS] = std::vector<uint8_t>(1, 111);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<uint8_t>(1, 196);
base58Prefixes[SECRET_KEY] = std::vector<uint8_t>(1, 239);
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
cashaddrPrefix = "bchreg";
}
};
static std::unique_ptr<CChainParams> globalChainParams;
const CChainParams &Params() {
assert(globalChainParams);
return *globalChainParams;
}
std::unique_ptr<CChainParams> CreateChainParams(const std::string &chain) {
if (chain == CBaseChainParams::MAIN) {
return std::unique_ptr<CChainParams>(new CMainParams());
}
if (chain == CBaseChainParams::TESTNET) {
return std::unique_ptr<CChainParams>(new CTestNetParams());
}
if (chain == CBaseChainParams::REGTEST) {
return std::unique_ptr<CChainParams>(new CRegTestParams());
}
throw std::runtime_error(
strprintf("%s: Unknown chain %s.", __func__, chain));
}
void SelectParams(const std::string &network) {
SelectBaseParams(network);
globalChainParams = CreateChainParams(network);
}