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chainparams.cpp
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chainparams.cpp
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// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2021 The Bitcoin 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 <chainparamsseeds.h>
#include <consensus/merkle.h>
#include <deploymentinfo.h>
#include <hash.h> // for signet block challenge hash
#include <issuance.h>
#include <primitives/transaction.h>
#include <util/system.h>
#include <crypto/sha256.h>
#include <assert.h>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
static CScript StrHexToScriptWithDefault(std::string strScript, const CScript defaultScript)
{
CScript returnScript;
if (!strScript.empty()) {
std::vector<unsigned char> scriptData = ParseHex(strScript);
returnScript = CScript(scriptData.begin(), scriptData.end());
} else {
returnScript = defaultScript;
}
return returnScript;
}
// Safer for users if they load incorrect parameters via arguments.
static std::vector<unsigned char> CommitToArguments(const Consensus::Params& params, const std::string& networkID)
{
CSHA256 sha2;
unsigned char commitment[32];
sha2.Write((const unsigned char*)networkID.c_str(), networkID.length());
sha2.Write((const unsigned char*)HexStr(params.fedpegScript).c_str(), HexStr(params.fedpegScript).length());
sha2.Write((const unsigned char*)HexStr(params.signblockscript).c_str(), HexStr(params.signblockscript).length());
sha2.Finalize(commitment);
return std::vector<unsigned char>(commitment, commitment + 32);
}
static CBlock CreateGenesisBlock(const Consensus::Params& params, const CScript& genesisScriptSig, 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.vin[0].scriptSig = genesisScriptSig;
txNew.vout.push_back(CTxOut(CAsset(), genesisReward, 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);
if (g_signed_blocks) {
genesis.proof = CProof(params.signblockscript, CScript());
}
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 Consensus::Params& params)
{
const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
const CScript genesisScriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
return CreateGenesisBlock(params, genesisScriptSig, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
/**
* Allows modifying the Version Bits Elements regtest parameters (and liquidv1test).
* Ideally, this would be a method in the base class, inherited everywhere, but that might complicate future merges,
* so we settle for this static function.
*/
static void UpdateElementsActivationParametersFromArgs(Consensus::Params& consensus, const ArgsManager& args)
{
if (!args.IsArgSet("-evbparams")) return;
std::map<std::string,int> map_deployments;
for (const std::string& strDeployment : args.GetArgs("-evbparams")) {
std::vector<std::string> vDeploymentParams;
boost::split(vDeploymentParams, strDeployment, boost::is_any_of(":"));
if (vDeploymentParams.size() != 5) {
throw std::runtime_error("ElementsVersion bits parameters malformed, expecting deployment:start:end:period:threshold");
}
int64_t nStartTime = 0, nTimeout = 0, nPeriod = 0, nThreshold = 0;
bool use_nStartTime = false, use_nTimeout = false, use_nPeriod = false, use_nThreshold = false;
if(vDeploymentParams[1].length()) {
if (!ParseInt64(vDeploymentParams[1], &nStartTime)) {
throw std::runtime_error(strprintf("Invalid nStartTime (%s)", vDeploymentParams[1]));
}
use_nStartTime = true;
}
if(vDeploymentParams[2].length()) {
if (!ParseInt64(vDeploymentParams[2], &nTimeout)) {
throw std::runtime_error(strprintf("Invalid nTimeout (%s)", vDeploymentParams[2]));
}
use_nTimeout = true;
}
if(vDeploymentParams[3].length()) {
if (!ParseInt64(vDeploymentParams[3], &nPeriod)) {
throw std::runtime_error(strprintf("Invalid nPeriod (%s)", vDeploymentParams[3]));
}
use_nPeriod = true;
}
if(vDeploymentParams[4].length()) {
if (!ParseInt64(vDeploymentParams[4], &nThreshold)) {
throw std::runtime_error(strprintf("Invalid nThreshold (%s)", vDeploymentParams[4]));
}
use_nThreshold = true;
}
bool found = false;
for (int j=0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) {
if (vDeploymentParams[0] == VersionBitsDeploymentInfo[j].name) {
if(map_deployments[vDeploymentParams[0]]) {
found = true;
LogPrintf("Ignoring duplicated version bits activation parameters for \"%s\"\n", strDeployment.c_str());
break;
}
std::string extra_logging;
map_deployments[vDeploymentParams[0]]=1;
Consensus::DeploymentPos d=Consensus::DeploymentPos(j);
if (use_nStartTime) {
consensus.vDeployments[d].nStartTime = nStartTime;
} else {
nStartTime =consensus.vDeployments[d].nStartTime;
}
if (use_nTimeout) {
consensus.vDeployments[d].nTimeout = nTimeout;
} else {
nTimeout = consensus.vDeployments[d].nTimeout;
}
if (consensus.vDeployments[d].nPeriod) {
if(use_nPeriod) {
consensus.vDeployments[d].nPeriod = nPeriod;
} else {
nPeriod = *consensus.vDeployments[d].nPeriod;
}
extra_logging+= strprintf(", period=%ld", nPeriod);
}
if (consensus.vDeployments[d].nThreshold) {
if(use_nThreshold) {
consensus.vDeployments[d].nThreshold = nThreshold;
} else {
nThreshold = *consensus.vDeployments[d].nThreshold;
}
extra_logging+= strprintf(", threshold=%ld", nThreshold);
}
found = true;
LogPrintf("Setting version bits activation parameters for %s to start=%ld, timeout=%ld%s\n", vDeploymentParams[0], nStartTime, nTimeout, extra_logging.c_str());
break;
}
}
if (!found) {
throw std::runtime_error(strprintf("Invalid deployment (%s)", vDeploymentParams[0]));
}
}
}
/**
* Main network on which people trade goods and services.
*/
class CMainParams : public CChainParams {
public:
CMainParams() {
strNetworkID = CBaseChainParams::MAIN;
consensus.signet_blocks = false;
consensus.signet_challenge.clear();
consensus.nSubsidyHalvingInterval = 210000;
consensus.BIP16Exception = uint256S("0x00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22");
consensus.BIP34Height = 227931;
consensus.BIP34Hash = uint256S("0x000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8");
consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = false;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1815; // 90% of 2016
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
// DynaFed: never activate (but set to avoid use of uninitialized memory in tests)
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].bit = 25;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].min_activation_height = 0; // No activation delay
// Deployment of Taproot (BIPs 340-342)
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
// Simplicity
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].bit = 24;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].min_activation_height = 0; // No activation delay
consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000002927cdceccbd5209e81e80db");
consensus.defaultAssumeValid = uint256S("0x000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091"); // 724466
consensus.genesis_subsidy = 50*COIN;
consensus.connect_genesis_outputs = false;
consensus.subsidy_asset = CAsset();
anyonecanspend_aremine = false;
enforce_pak = false;
multi_data_permitted = false;
accept_discount_ct = false;
create_discount_ct = false;
consensus.has_parent_chain = false;
g_signed_blocks = false;
g_con_elementsmode = false;
g_con_blockheightinheader = false;
consensus.total_valid_epochs = 0;
consensus.elements_mode = g_con_elementsmode;
/**
* 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] = 0xf9;
pchMessageStart[1] = 0xbe;
pchMessageStart[2] = 0xb4;
pchMessageStart[3] = 0xd9;
nDefaultPort = 8333;
nPruneAfterHeight = 100000;
m_assumed_blockchain_size = 460;
m_assumed_chain_state_size = 6;
genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN, consensus);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
// 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 an addrfetch if they don't 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.
vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
vSeeds.emplace_back("dnsseed.bitcoin.dashjr.org."); // Luke Dashjr
vSeeds.emplace_back("seed.bitcoinstats.com."); // Christian Decker, supports x1 - xf
vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
vSeeds.emplace_back("seed.btc.petertodd.org."); // Peter Todd, only supports x1, x5, x9, and xd
vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
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] = {0x04, 0x88, 0xB2, 0x1E};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
bech32_hrp = "bc";
blech32_hrp = bech32_hrp;
vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
fDefaultConsistencyChecks = false;
fRequireStandard = true;
m_is_test_chain = false;
m_is_mockable_chain = false;
checkpointData = {
{
{ 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")},
{ 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")},
{ 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")},
{105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")},
{134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe")},
{168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763")},
{193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317")},
{210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e")},
{216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e")},
{225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932")},
{250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214")},
{279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40")},
{295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")},
}
};
m_assumeutxo_data = MapAssumeutxo{
// TODO to be specified in a future patch.
};
chainTxData = ChainTxData{
// Data from RPC: getchaintxstats 4096 000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091
/* nTime */ 1645542140,
/* nTxCount */ 712531200,
/* dTxRate */ 2.891036496010309,
};
}
};
/**
* Testnet (v3): public test network which is reset from time to time.
*/
class CTestNetParams : public CChainParams {
public:
CTestNetParams() {
strNetworkID = CBaseChainParams::TESTNET;
consensus.signet_blocks = false;
consensus.signet_challenge.clear();
consensus.nSubsidyHalvingInterval = 210000;
consensus.BIP16Exception = uint256S("0x00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105");
consensus.BIP34Height = 21111;
consensus.BIP34Hash = uint256S("0x0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8");
consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
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 = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
// DynaFed: never activate (but set to avoid use of uninitialized memory in tests)
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].bit = 25;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].min_activation_height = 0; // No activation delay
// Deployment of Taproot (BIPs 340-342)
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
// Simplicity
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].bit = 24;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].min_activation_height = 0; // No activation delay
consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000064728c7be6fe4b2f961");
consensus.defaultAssumeValid = uint256S("0x00000000000163cfb1f97c4e4098a3692c8053ad9cab5ad9c86b338b5c00b8b7"); // 2143398
consensus.genesis_subsidy = 50*COIN;
consensus.connect_genesis_outputs = false;
consensus.subsidy_asset = CAsset();
anyonecanspend_aremine = false;
enforce_pak = false;
multi_data_permitted = false;
accept_discount_ct = false;
create_discount_ct = false;
consensus.has_parent_chain = false;
g_signed_blocks = false;
g_con_elementsmode = false;
g_con_blockheightinheader = false;
consensus.total_valid_epochs = 0;
consensus.elements_mode = g_con_elementsmode;
pchMessageStart[0] = 0x0b;
pchMessageStart[1] = 0x11;
pchMessageStart[2] = 0x09;
pchMessageStart[3] = 0x07;
nDefaultPort = 18333;
nPruneAfterHeight = 1000;
m_assumed_blockchain_size = 40;
m_assumed_chain_state_size = 2;
genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN, consensus);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
vFixedSeeds.clear();
vSeeds.clear();
// nodes with support for servicebits filtering should be at the top
vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
vSeeds.emplace_back("seed.tbtc.petertodd.org.");
vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
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] = {0x04, 0x35, 0x87, 0xCF};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
bech32_hrp = "tb";
blech32_hrp = bech32_hrp;
vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
fDefaultConsistencyChecks = false;
fRequireStandard = false;
m_is_test_chain = true;
m_is_mockable_chain = false;
checkpointData = {
{
{546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")},
}
};
m_assumeutxo_data = MapAssumeutxo{
// TODO to be specified in a future patch.
};
chainTxData = ChainTxData{
// Data from RPC: getchaintxstats 4096 00000000d18cfe81cbeea665076807789bd8f831d557632e635bc6e3c003069e
/* nTime */ 1645635119,
/* nTxCount */ 62226341,
/* dTxRate */ 0.07717997442177152,
};
}
};
/**
* Signet: test network with an additional consensus parameter (see BIP325).
*/
class SigNetParams : public CChainParams {
public:
explicit SigNetParams(const ArgsManager& args) {
std::vector<uint8_t> bin;
vSeeds.clear();
if (!args.IsArgSet("-signetchallenge")) {
bin = ParseHex("512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae");
vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
// Hardcoded nodes can be removed once there are more DNS seeds
vSeeds.emplace_back("178.128.221.177");
vSeeds.emplace_back("v7ajjeirttkbnt32wpy3c6w3emwnfr3fkla7hpxcfokr3ysd3kqtzmqd.onion:38333");
consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000000000de26b0e471");
consensus.defaultAssumeValid = uint256S("0x00000112852484b5fe3451572368f93cfd2723279af3464e478aee35115256ef"); // 78788
m_assumed_blockchain_size = 1;
m_assumed_chain_state_size = 0;
chainTxData = ChainTxData{
// Data from RPC: getchaintxstats 4096 0000003d9144c56ac110ae04a0c271a0acce2f14f426b39fdf0d938c96d2eb09
/* nTime */ 1645631279,
/* nTxCount */ 1257429,
/* dTxRate */ 0.1389638742514995,
};
} else {
const auto signet_challenge = args.GetArgs("-signetchallenge");
if (signet_challenge.size() != 1) {
throw std::runtime_error(strprintf("%s: -signetchallenge cannot be multiple values.", __func__));
}
bin = ParseHex(signet_challenge[0]);
consensus.nMinimumChainWork = uint256{};
consensus.defaultAssumeValid = uint256{};
m_assumed_blockchain_size = 0;
m_assumed_chain_state_size = 0;
chainTxData = ChainTxData{
0,
0,
0,
};
LogPrintf("Signet with challenge %s\n", signet_challenge[0]);
}
if (args.IsArgSet("-signetseednode")) {
vSeeds = args.GetArgs("-signetseednode");
}
strNetworkID = CBaseChainParams::SIGNET;
consensus.signet_blocks = true;
consensus.signet_challenge.assign(bin.begin(), bin.end());
consensus.nSubsidyHalvingInterval = 210000;
consensus.BIP16Exception = uint256{};
consensus.BIP34Height = 1;
consensus.BIP34Hash = uint256{};
consensus.BIP65Height = 1;
consensus.BIP66Height = 1;
consensus.CSVHeight = 1;
consensus.SegwitHeight = 1;
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = false;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1815; // 90% of 2016
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
consensus.MinBIP9WarningHeight = 0;
consensus.powLimit = uint256S("00000377ae000000000000000000000000000000000000000000000000000000");
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
// DynaFed: never activate (but set to avoid use of uninitialized memory in tests)
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].bit = 25;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].min_activation_height = 0; // No activation delay
// Activation of Taproot (BIPs 340-342)
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
// Simplicity
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].bit = 24;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].min_activation_height = 0; // No activation delay
// ELEMENTS: copied from Main
consensus.genesis_subsidy = 50*COIN;
consensus.connect_genesis_outputs = false;
consensus.subsidy_asset = CAsset();
anyonecanspend_aremine = false;
enforce_pak = false;
multi_data_permitted = false;
accept_discount_ct = false;
create_discount_ct = false;
consensus.has_parent_chain = false;
g_signed_blocks = false; // lol
g_con_elementsmode = false;
g_con_blockheightinheader = false;
consensus.total_valid_epochs = 0;
consensus.elements_mode = g_con_elementsmode;
// message start is defined as the first 4 bytes of the sha256d of the block script
CHashWriter h(SER_DISK, 0);
h << consensus.signet_challenge;
uint256 hash = h.GetHash();
memcpy(pchMessageStart, hash.begin(), 4);
nDefaultPort = 38333;
nPruneAfterHeight = 1000;
genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN, consensus);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
vFixedSeeds.clear();
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] = {0x04, 0x35, 0x87, 0xCF};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
bech32_hrp = "tb";
blech32_hrp = bech32_hrp;
fDefaultConsistencyChecks = false;
fRequireStandard = true;
m_is_test_chain = true;
m_is_mockable_chain = false;
}
};
/**
* Regression test: intended for private networks only. Has minimal difficulty to ensure that
* blocks can be found instantly.
*/
class CRegTestParams : public CChainParams {
public:
explicit CRegTestParams(const ArgsManager& args) {
strNetworkID = CBaseChainParams::REGTEST;
consensus.signet_blocks = false;
consensus.signet_challenge.clear();
consensus.nSubsidyHalvingInterval = 150;
consensus.BIP16Exception = uint256();
consensus.BIP34Height = 1; // Always active unless overridden
consensus.BIP34Hash = uint256();
consensus.BIP65Height = 1; // Always active unless overridden
consensus.BIP66Height = 1; // Always active unless overridden
consensus.CSVHeight = 1; // Always active unless overridden
consensus.SegwitHeight = 1; // Always active unless overridden
consensus.MinBIP9WarningHeight = 0;
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 = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
// DynaFed: never activate (but set to avoid use of uninitialized memory in tests)
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].bit = 25;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].min_activation_height = 0; // No activation delay
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nPeriod = 128; // test ability to change from default
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nThreshold = 128;
// Simplicity
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].bit = 24;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].min_activation_height = 0; // No activation delay
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nPeriod = 128; // test ability to change from default
consensus.vDeployments[Consensus::DEPLOYMENT_SIMPLICITY].nThreshold = 128;
consensus.nMinimumChainWork = uint256{};
consensus.defaultAssumeValid = uint256{};
consensus.genesis_subsidy = 50*COIN;
consensus.connect_genesis_outputs = false;
consensus.subsidy_asset = CAsset();
anyonecanspend_aremine = false;
enforce_pak = false;
multi_data_permitted = false;
accept_discount_ct = false;
create_discount_ct = false;
consensus.has_parent_chain = false;
g_signed_blocks = false;
g_con_elementsmode = false;
consensus.elements_mode = g_con_elementsmode;
g_con_blockheightinheader = false;
consensus.total_valid_epochs = 0;
pchMessageStart[0] = 0xfa;
pchMessageStart[1] = 0xbf;
pchMessageStart[2] = 0xb5;
pchMessageStart[3] = 0xda;
nDefaultPort = 18444;
nPruneAfterHeight = args.GetBoolArg("-fastprune", false) ? 100 : 1000;
m_assumed_blockchain_size = 0;
m_assumed_chain_state_size = 0;
UpdateActivationParametersFromArgs(args);
genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN, consensus);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
vSeeds.clear();
vSeeds.emplace_back("dummySeed.invalid.");
fDefaultConsistencyChecks = true;
fRequireStandard = true;
m_is_test_chain = true;
m_is_mockable_chain = true;
checkpointData = {
{
{0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")},
}
};
m_assumeutxo_data = MapAssumeutxo{
{
110,
{AssumeutxoHash{uint256S("0x09a3e443dbf48f3b95207c9ce529062d9764395232c482aa7d3a0bf274d282d9")}, 110},
},
{
200,
{AssumeutxoHash{uint256S("0x51c8d11d8b5c1de51543c579736e786aa2736206d1e11e627568029ce092cf62")}, 200},
},
};
chainTxData = ChainTxData{
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] = {0x04, 0x35, 0x87, 0xCF};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
bech32_hrp = "bcrt";
blech32_hrp = bech32_hrp;
}
/**
* Allows modifying the Version Bits regtest parameters.
*/
void UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout, int min_activation_height)
{
consensus.vDeployments[d].nStartTime = nStartTime;
consensus.vDeployments[d].nTimeout = nTimeout;
consensus.vDeployments[d].min_activation_height = min_activation_height;
}
void UpdateActivationParametersFromArgs(const ArgsManager& args);
};
static void MaybeUpdateHeights(const ArgsManager& args, Consensus::Params& consensus)
{
for (const std::string& arg : args.GetArgs("-testactivationheight")) {
const auto found{arg.find('@')};
if (found == std::string::npos) {
throw std::runtime_error(strprintf("Invalid format (%s) for -testactivationheight=name@height.", arg));
}
const auto name{arg.substr(0, found)};
const auto value{arg.substr(found + 1)};
int32_t height;
if (!ParseInt32(value, &height) || height < 0 || height >= std::numeric_limits<int>::max()) {
throw std::runtime_error(strprintf("Invalid height value (%s) for -testactivationheight=name@height.", arg));
}
if (name == "segwit") {
consensus.SegwitHeight = int{height};
} else if (name == "bip34") {
consensus.BIP34Height = int{height};
} else if (name == "dersig") {
consensus.BIP66Height = int{height};
} else if (name == "cltv") {
consensus.BIP65Height = int{height};
} else if (name == "csv") {
consensus.CSVHeight = int{height};
} else {
throw std::runtime_error(strprintf("Invalid name (%s) for -testactivationheight=name@height.", arg));
}
}
}
void CRegTestParams::UpdateActivationParametersFromArgs(const ArgsManager& args)
{
MaybeUpdateHeights(args, consensus);
if (!args.IsArgSet("-vbparams")) return;
for (const std::string& strDeployment : args.GetArgs("-vbparams")) {
std::vector<std::string> vDeploymentParams;
boost::split(vDeploymentParams, strDeployment, boost::is_any_of(":"));
if (vDeploymentParams.size() < 3 || 4 < vDeploymentParams.size()) {
throw std::runtime_error("Version bits parameters malformed, expecting deployment:start:end[:min_activation_height]");
}
int64_t nStartTime, nTimeout;
int min_activation_height = 0;
if (!ParseInt64(vDeploymentParams[1], &nStartTime)) {
throw std::runtime_error(strprintf("Invalid nStartTime (%s)", vDeploymentParams[1]));
}
if (!ParseInt64(vDeploymentParams[2], &nTimeout)) {
throw std::runtime_error(strprintf("Invalid nTimeout (%s)", vDeploymentParams[2]));
}
if (vDeploymentParams.size() >= 4 && !ParseInt32(vDeploymentParams[3], &min_activation_height)) {
throw std::runtime_error(strprintf("Invalid min_activation_height (%s)", vDeploymentParams[3]));
}
bool found = false;
for (int j=0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) {
if (vDeploymentParams[0] == VersionBitsDeploymentInfo[j].name) {
UpdateVersionBitsParameters(Consensus::DeploymentPos(j), nStartTime, nTimeout, min_activation_height);
found = true;
LogPrintf("Setting version bits activation parameters for %s to start=%ld, timeout=%ld, min_activation_height=%d\n", vDeploymentParams[0], nStartTime, nTimeout, min_activation_height);
break;
}
}
if (!found) {
throw std::runtime_error(strprintf("Invalid deployment (%s)", vDeploymentParams[0]));
}
}
}
/**
* Custom params for testing.
*/
class CCustomParams : public CRegTestParams {
protected:
std::string default_magic_str = "5319F20E";
std::string default_signblockscript = "51";
void UpdateFromArgs(const ArgsManager& args)
{
UpdateActivationParametersFromArgs(args);
consensus.nSubsidyHalvingInterval = args.GetIntArg("-con_nsubsidyhalvinginterval", consensus.nSubsidyHalvingInterval);
consensus.BIP16Exception = uint256S(args.GetArg("-con_bip16exception", "0x0"));
consensus.BIP34Height = args.GetIntArg("-con_bip34height", 0);
consensus.BIP34Hash = uint256S(args.GetArg("-con_bip34hash", "0x0"));
consensus.BIP65Height = args.GetIntArg("-con_bip65height", 0);
consensus.BIP66Height = args.GetIntArg("-con_bip66height", 0);
consensus.CSVHeight = args.GetIntArg("-con_csv_deploy_start", 1);
consensus.powLimit = uint256S(args.GetArg("-con_powlimit", "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
consensus.nPowTargetTimespan = args.GetIntArg("-con_npowtargettimespan", consensus.nPowTargetTimespan);
consensus.nPowTargetSpacing = args.GetIntArg("-con_npowtargetspacing", consensus.nPowTargetSpacing);
consensus.fPowAllowMinDifficultyBlocks = args.GetBoolArg("-con_fpowallowmindifficultyblocks", consensus.fPowAllowMinDifficultyBlocks);
consensus.fPowNoRetargeting = args.GetBoolArg("-con_fpownoretargeting", consensus.fPowNoRetargeting);
consensus.nRuleChangeActivationThreshold = (uint32_t)args.GetIntArg("-con_nrulechangeactivationthreshold", consensus.nRuleChangeActivationThreshold);
consensus.nMinerConfirmationWindow = (uint32_t)args.GetIntArg("-con_nminerconfirmationwindow", consensus.nMinerConfirmationWindow);
consensus.nMinimumChainWork = uint256S(args.GetArg("-con_nminimumchainwork", "0x0"));
consensus.defaultAssumeValid = uint256S(args.GetArg("-con_defaultassumevalid", "0x00"));
// TODO: Embed in genesis block in nTime field with new genesis block type
consensus.dynamic_epoch_length = args.GetIntArg("-dynamic_epoch_length", consensus.dynamic_epoch_length);
// Default junk keys for testing
consensus.first_extension_space = {ParseHex("02fcba7ecf41bc7e1be4ee122d9d22e3333671eb0a3a87b5cdf099d59874e1940f02fcba7ecf41bc7e1be4ee122d9d22e3333671eb0a3a87b5cdf099d59874e1940f")};
std::vector<std::string> pak_list_str = args.GetArgs("-pak");
if (!pak_list_str.empty()) {
consensus.first_extension_space.clear();
for (const auto& entry : pak_list_str) {
consensus.first_extension_space.push_back(ParseHex(entry));
}
}
nPruneAfterHeight = (uint64_t)args.GetIntArg("-npruneafterheight", nPruneAfterHeight);
fDefaultConsistencyChecks = args.GetBoolArg("-fdefaultconsistencychecks", fDefaultConsistencyChecks);
m_is_test_chain = args.GetBoolArg("-fmineblocksondemand", m_is_test_chain);
bech32_hrp = args.GetArg("-bech32_hrp", bech32_hrp);
blech32_hrp = args.GetArg("-blech32_hrp", blech32_hrp);
assert(base58Prefixes[PUBKEY_ADDRESS].size() == 1);
assert(base58Prefixes[SCRIPT_ADDRESS].size() == 1);
assert(base58Prefixes[BLINDED_ADDRESS].size() == 1);
assert(base58Prefixes[SECRET_KEY].size() == 1);
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1, args.GetIntArg("-pubkeyprefix", base58Prefixes[PUBKEY_ADDRESS][0]));
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1, args.GetIntArg("-scriptprefix", base58Prefixes[SCRIPT_ADDRESS][0]));
base58Prefixes[BLINDED_ADDRESS] = std::vector<unsigned char>(1, args.GetIntArg("-blindedprefix", base58Prefixes[BLINDED_ADDRESS][0]));
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1, args.GetIntArg("-secretprefix", base58Prefixes[SECRET_KEY][0]));
base58Prefixes[PARENT_PUBKEY_ADDRESS] = std::vector<unsigned char>(1, args.GetIntArg("-parentpubkeyprefix", 111));
base58Prefixes[PARENT_SCRIPT_ADDRESS] = std::vector<unsigned char>(1, args.GetIntArg("-parentscriptprefix", 196));
parent_bech32_hrp = args.GetArg("-parent_bech32_hrp", "bcrt");
parent_blech32_hrp = args.GetArg("-parent_blech32_hrp", "bcrt");
std::string extpubprefix = args.GetArg("-extpubkeyprefix", "043587CF");
assert(IsHex(extpubprefix) && extpubprefix.size() == 8 && "-extpubkeyprefix must be hex string of length 8");
base58Prefixes[EXT_PUBLIC_KEY] = ParseHex(extpubprefix);
std::string extprvprefix = args.GetArg("-extprvkeyprefix", "04358394");
assert(IsHex(extprvprefix) && extprvprefix.size() == 8 && "-extprvkeyprefix must be hex string of length 8");
base58Prefixes[EXT_SECRET_KEY] = ParseHex(extprvprefix);
const std::string magic_str = args.GetArg("-pchmessagestart", default_magic_str);
assert(IsHex(magic_str) && magic_str.size() == 8 && "-pchmessagestart must be hex string of length 8");
const std::vector<unsigned char> magic_byte = ParseHex(magic_str);
std::copy(begin(magic_byte), end(magic_byte), pchMessageStart);
vSeeds.clear();
vSeeds.emplace_back("dummySeed.invalid.");
if (args.IsArgSet("-seednode")) {
const auto seednodes = args.GetArgs("-seednode");
if (seednodes.size() != 1 || seednodes[0] != "0") {
vSeeds = seednodes;
}
}
//
// ELEMENTS fields
// Determines type of genesis block
consensus.genesis_style = args.GetArg("-con_genesis_style", "elements");
// Block signing encumbrance script, default of 51 aka OP_TRUE
std::vector<unsigned char> sign_bytes = ParseHex(args.GetArg("-signblockscript", default_signblockscript));
consensus.signblockscript = CScript(sign_bytes.begin(), sign_bytes.end());
consensus.max_block_signature_size = args.GetIntArg("-con_max_block_sig_size", consensus.max_block_signature_size);
g_signed_blocks = args.GetBoolArg("-con_signed_blocks", true);
// Note: These globals are needed to avoid circular dependencies.
// Default to true for custom chains.
g_con_blockheightinheader = args.GetBoolArg("-con_blockheightinheader", true);
g_con_elementsmode = args.GetBoolArg("-con_elementsmode", true);
consensus.elements_mode = g_con_elementsmode;
// No subsidy for custom chains by default
consensus.genesis_subsidy = args.GetIntArg("-con_blocksubsidy", 0);
// All non-zero coinbase outputs must go to this scriptPubKey
std::vector<unsigned char> man_bytes = ParseHex(args.GetArg("-con_mandatorycoinbase", ""));
consensus.mandatory_coinbase_destination = CScript(man_bytes.begin(), man_bytes.end()); // Blank script allows any coinbase destination
// Custom chains connect coinbase outputs to db by default
consensus.connect_genesis_outputs = args.GetIntArg("-con_connect_genesis_outputs", true);
initialFreeCoins = args.GetIntArg("-initialfreecoins", initialFreeCoins);
anyonecanspend_aremine = args.GetBoolArg("-anyonecanspendaremine", anyonecanspend_aremine);
consensus.has_parent_chain = args.GetBoolArg("-con_has_parent_chain", consensus.has_parent_chain);
enforce_pak = args.GetBoolArg("-enforce_pak", false);
// Allow multiple op_return outputs by relay policy
multi_data_permitted = args.GetBoolArg("-multi_data_permitted", enforce_pak);
// bitcoin regtest is the parent chain by default
parentGenesisBlockHash = uint256S(args.GetArg("-parentgenesisblockhash", parentGenesisBlockHash.GetHex()));
// Either it has a parent chain or not
const bool parent_genesis_is_null = parentGenesisBlockHash == uint256();
assert(consensus.has_parent_chain != parent_genesis_is_null);
consensus.parentChainPowLimit = uint256S(args.GetArg("-con_parentpowlimit", "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
consensus.parent_chain_signblockscript = StrHexToScriptWithDefault(args.GetArg("-con_parent_chain_signblockscript", ""), CScript());
consensus.pegin_min_depth = args.GetIntArg("-peginconfirmationdepth", DEFAULT_PEGIN_CONFIRMATION_DEPTH);
const CScript default_script(CScript() << OP_TRUE);
consensus.fedpegScript = StrHexToScriptWithDefault(args.GetArg("-fedpegscript", ""), default_script);
consensus.start_p2wsh_script = args.GetIntArg("-con_start_p2wsh_script", consensus.start_p2wsh_script);
create_discount_ct = args.GetBoolArg("-creatediscountct", create_discount_ct);
accept_discount_ct = args.GetBoolArg("-acceptdiscountct", accept_discount_ct) || create_discount_ct;
// Calculate pegged Bitcoin asset
std::vector<unsigned char> commit = CommitToArguments(consensus, strNetworkID);
uint256 entropy;
GenerateAssetEntropy(entropy, COutPoint(uint256(commit), 0), parentGenesisBlockHash);
consensus.total_valid_epochs = args.GetIntArg("-total_valid_epochs", 2);
// Elements serialization uses derivation, bitcoin serialization uses 0x00
if (g_con_elementsmode) {
CalculateAsset(consensus.pegged_asset, entropy);
} else {
assert(consensus.pegged_asset == CAsset());
}
consensus.parent_pegged_asset.SetHex(args.GetArg("-con_parent_pegged_asset", "0x00"));
initial_reissuance_tokens = args.GetIntArg("-initialreissuancetokens", 0);
// Subsidy asset, like policyAsset, defaults to the pegged_asset
consensus.subsidy_asset = consensus.pegged_asset;
if (args.IsArgSet("-subsidyasset")) {
consensus.subsidy_asset = CAsset(uint256S(args.GetArg("-subsidyasset", "0x00")));
}
UpdateElementsActivationParametersFromArgs(consensus, args);
// END ELEMENTS fields
}
void SetGenesisBlock() {
if (consensus.genesis_style == "bitcoin") {
// For compatibility with bitcoin (regtest)
genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN, consensus);
} else if (consensus.genesis_style == "elements") {
// Intended compatibility with Liquid v1 and elements-0.14.1
std::vector<unsigned char> commit = CommitToArguments(consensus, strNetworkID);
genesis = CreateGenesisBlock(consensus, CScript() << commit, CScript(OP_RETURN), 1296688602, 2, 0x207fffff, 1, 0);
if (initialFreeCoins != 0 || initial_reissuance_tokens != 0) {
AppendInitialIssuance(genesis, COutPoint(uint256(commit), 0), parentGenesisBlockHash, (initialFreeCoins > 0) ? 1 : 0, initialFreeCoins, (initial_reissuance_tokens > 0) ? 1 : 0, initial_reissuance_tokens, CScript() << OP_TRUE);
}
} else if (consensus.genesis_style == "dynamic") {
// Liquid v2 HF, from genesis. Upgrading networks still use "elements".
// TODO fill out genesis block with special commitments including epoch
// length in nTime
throw std::runtime_error(strprintf("Invalid -genesis_style (%s)", consensus.genesis_style));
} else {
throw std::runtime_error(strprintf("Invalid -genesis_style (%s)", consensus.genesis_style));
}
}
public:
CCustomParams(const std::string& chain, const ArgsManager& args) : CRegTestParams(args)
{
strNetworkID = chain;
//default settings
initialFreeCoins = 0;
anyonecanspend_aremine = true;
// Default signature size is the size of dummy push, and single 72 byte DER signature
consensus.max_block_signature_size = 74;
consensus.dynamic_epoch_length = 10;
// bitcoin regtest is the parent chain by default
consensus.has_parent_chain = true;
parentGenesisBlockHash = uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206");
bech32_hrp = "ert";
blech32_hrp = "el";
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1, 235);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1, 75);
base58Prefixes[BLINDED_ADDRESS] = std::vector<unsigned char>(1, 4);
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1, 239);
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].bit = 25;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;