Branch data Line data Source code
1 : : // Copyright (c) 2010 Satoshi Nakamoto
2 : : // Copyright (c) 2009-2021 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 <kernel/chainparams.h>
7 : :
8 : : #include <chainparamsseeds.h>
9 : : #include <consensus/amount.h>
10 : : #include <consensus/merkle.h>
11 : : #include <consensus/params.h>
12 : : #include <hash.h>
13 : : #include <kernel/messagestartchars.h>
14 : : #include <logging.h>
15 : : #include <primitives/block.h>
16 : : #include <primitives/transaction.h>
17 : : #include <script/interpreter.h>
18 : : #include <script/script.h>
19 : : #include <uint256.h>
20 : : #include <util/chaintype.h>
21 : : #include <util/strencodings.h>
22 : :
23 : : #include <algorithm>
24 : : #include <cassert>
25 : : #include <cstdint>
26 : : #include <cstring>
27 : : #include <type_traits>
28 : :
29 : : using namespace util::hex_literals;
30 : :
31 : : // Workaround MSVC bug triggering C7595 when calling consteval constructors in
32 : : // initializer lists.
33 : : // A fix may be on the way:
34 : : // https://developercommunity.visualstudio.com/t/consteval-conversion-function-fails/1579014
35 : : #if defined(_MSC_VER)
36 : : auto consteval_ctor(auto&& input) { return input; }
37 : : #else
38 : : #define consteval_ctor(input) (input)
39 : : #endif
40 : :
41 : 4236 : static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
42 : : {
43 : 4236 : CMutableTransaction txNew;
44 : 4236 : txNew.version = 1;
45 [ + - ]: 4236 : txNew.vin.resize(1);
46 [ + - ]: 4236 : txNew.vout.resize(1);
47 [ + - + - : 4236 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ - ]
48 : 4236 : txNew.vout[0].nValue = genesisReward;
49 : 4236 : txNew.vout[0].scriptPubKey = genesisOutputScript;
50 : :
51 : 4236 : CBlock genesis;
52 : 4236 : genesis.nTime = nTime;
53 : 4236 : genesis.nBits = nBits;
54 : 4236 : genesis.nNonce = nNonce;
55 : 4236 : genesis.nVersion = nVersion;
56 [ + - + - : 8472 : genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
- + ]
57 : 4236 : genesis.hashPrevBlock.SetNull();
58 [ + - ]: 4236 : genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
59 : 4236 : return genesis;
60 : 4236 : }
61 : :
62 : : /**
63 : : * Build the genesis block. Note that the output of its generation
64 : : * transaction cannot be spent since it did not originally exist in the
65 : : * database.
66 : : *
67 : : * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
68 : : * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
69 : : * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
70 : : * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
71 : : * vMerkleTree: 4a5e1e
72 : : */
73 : 3619 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
74 : : {
75 : 3619 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
76 [ + - ]: 3619 : const CScript genesisOutputScript = CScript() << "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"_hex << OP_CHECKSIG;
77 [ + - ]: 3619 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
78 : 3619 : }
79 : :
80 : : /**
81 : : * Main network on which people trade goods and services.
82 : : */
83 : 0 : class CMainParams : public CChainParams {
84 : : public:
85 : 1365 : CMainParams() {
86 : 1365 : m_chain_type = ChainType::MAIN;
87 : 1365 : consensus.signet_blocks = false;
88 [ - + ]: 1365 : consensus.signet_challenge.clear();
89 : 1365 : consensus.nSubsidyHalvingInterval = 210000;
90 : 1365 : consensus.script_flag_exceptions.emplace( // BIP16 exception
91 [ + - ]: 1365 : uint256{"00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22"}, SCRIPT_VERIFY_NONE);
92 : 1365 : consensus.script_flag_exceptions.emplace( // Taproot exception
93 [ + - ]: 1365 : uint256{"0000000000000000000f14c35b2d841e986ab5441de8c585d5ffe55ea1e395ad"}, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS);
94 : 1365 : consensus.BIP34Height = 227931;
95 : 1365 : consensus.BIP34Hash = uint256{"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"};
96 : 1365 : consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
97 : 1365 : consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
98 : 1365 : consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
99 : 1365 : consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
100 : 1365 : consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
101 : 1365 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
102 : 1365 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
103 : 1365 : consensus.nPowTargetSpacing = 10 * 60;
104 : 1365 : consensus.fPowAllowMinDifficultyBlocks = false;
105 : 1365 : consensus.enforce_BIP94 = false;
106 : 1365 : consensus.fPowNoRetargeting = false;
107 : 1365 : consensus.nRuleChangeActivationThreshold = 1815; // 90% of 2016
108 : 1365 : consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
109 : 1365 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
110 : 1365 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
111 : 1365 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
112 : 1365 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
113 : :
114 : : // Deployment of Taproot (BIPs 340-342)
115 : 1365 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
116 : 1365 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
117 : 1365 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
118 : 1365 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
119 : :
120 : 1365 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000b1f3b93b65b16d035a82be84"};
121 : 1365 : consensus.defaultAssumeValid = uint256{"00000000000000000001b658dd1120e82e66d2790811f89ede9742ada3ed6d77"}; // 886157
122 : :
123 : : /**
124 : : * The message start string is designed to be unlikely to occur in normal data.
125 : : * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
126 : : * a large 32-bit integer with any alignment.
127 : : */
128 [ + - ]: 1365 : pchMessageStart[0] = 0xf9;
129 : 1365 : pchMessageStart[1] = 0xbe;
130 : 1365 : pchMessageStart[2] = 0xb4;
131 : 1365 : pchMessageStart[3] = 0xd9;
132 : 1365 : nDefaultPort = 8333;
133 : 1365 : nPruneAfterHeight = 100000;
134 : 1365 : m_assumed_blockchain_size = 720;
135 : 1365 : m_assumed_chain_state_size = 14;
136 : :
137 [ + - ]: 1365 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
138 [ + - ]: 1365 : consensus.hashGenesisBlock = genesis.GetHash();
139 [ - + ]: 1365 : assert(consensus.hashGenesisBlock == uint256{"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"});
140 [ - + ]: 1365 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
141 : :
142 : : // Note that of those which support the service bits prefix, most only support a subset of
143 : : // possible options.
144 : : // This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
145 : : // service bits we want, but we should get them updated to support all service bits wanted by any
146 : : // release ASAP to avoid it where possible.
147 [ + - ]: 1365 : vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
148 [ + - ]: 1365 : vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
149 [ + - ]: 1365 : vSeeds.emplace_back("dnsseed.bitcoin.dashjr-list-of-p2p-nodes.us."); // Luke Dashjr
150 [ + - ]: 1365 : vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
151 [ + - ]: 1365 : vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
152 [ + - ]: 1365 : vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
153 [ + - ]: 1365 : vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
154 [ + - ]: 1365 : vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
155 [ + - ]: 1365 : vSeeds.emplace_back("seed.mainnet.achownodes.xyz."); // Ava Chow, only supports x1, x5, x9, x49, x809, x849, xd, x400, x404, x408, x448, xc08, xc48, x40c
156 : :
157 [ + - + - ]: 1365 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
158 [ + - + - ]: 1365 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
159 [ + - + - ]: 1365 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
160 [ + - ]: 1365 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
161 [ + - ]: 1365 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
162 : :
163 [ + - ]: 1365 : bech32_hrp = "bc";
164 : :
165 [ + - + - ]: 1365 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
166 : :
167 : 1365 : fDefaultConsistencyChecks = false;
168 : 1365 : m_is_mockable_chain = false;
169 : :
170 : 1365 : m_assumeutxo_data = {
171 : : {
172 : : .height = 840'000,
173 [ + - ]: 1365 : .hash_serialized = AssumeutxoHash{uint256{"a2a5521b1b5ab65f67818e5e8eccabb7171a517f9e2382208f77687310768f96"}},
174 : : .m_chain_tx_count = 991032194,
175 : : .blockhash = consteval_ctor(uint256{"0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5"}),
176 : : },
177 : : {
178 : : .height = 880'000,
179 : 1365 : .hash_serialized = AssumeutxoHash{uint256{"dbd190983eaf433ef7c15f78a278ae42c00ef52e0fd2a54953782175fbadcea9"}},
180 : : .m_chain_tx_count = 1145604538,
181 : : .blockhash = consteval_ctor(uint256{"000000000000000000010b17283c3c400507969a9c2afd1dcf2082ec5cca2880"}),
182 : : }
183 [ + - ]: 1365 : };
184 : :
185 : 1365 : chainTxData = ChainTxData{
186 : : // Data from RPC: getchaintxstats 4096 00000000000000000001b658dd1120e82e66d2790811f89ede9742ada3ed6d77
187 : : .nTime = 1741017141,
188 : : .tx_count = 1161875261,
189 : : .dTxRate = 4.620728156243148,
190 : : };
191 : 1365 : }
192 : : };
193 : :
194 : : /**
195 : : * Testnet (v3): public test network which is reset from time to time.
196 : : */
197 : 0 : class CTestNetParams : public CChainParams {
198 : : public:
199 : 722 : CTestNetParams() {
200 : 722 : m_chain_type = ChainType::TESTNET;
201 : 722 : consensus.signet_blocks = false;
202 [ - + ]: 722 : consensus.signet_challenge.clear();
203 : 722 : consensus.nSubsidyHalvingInterval = 210000;
204 : 722 : consensus.script_flag_exceptions.emplace( // BIP16 exception
205 [ + - ]: 722 : uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
206 : 722 : consensus.BIP34Height = 21111;
207 : 722 : consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
208 : 722 : consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
209 : 722 : consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
210 : 722 : consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
211 : 722 : consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
212 : 722 : consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
213 : 722 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
214 : 722 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
215 : 722 : consensus.nPowTargetSpacing = 10 * 60;
216 : 722 : consensus.fPowAllowMinDifficultyBlocks = true;
217 : 722 : consensus.enforce_BIP94 = false;
218 : 722 : consensus.fPowNoRetargeting = false;
219 : 722 : consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
220 : 722 : consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
221 : 722 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
222 : 722 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
223 : 722 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
224 : 722 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
225 : :
226 : : // Deployment of Taproot (BIPs 340-342)
227 : 722 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
228 : 722 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
229 : 722 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
230 : 722 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
231 : :
232 : 722 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000015f5e0c9f13455b0eb17"};
233 : 722 : consensus.defaultAssumeValid = uint256{"00000000000003fc7967410ba2d0a8a8d50daedc318d43e8baf1a9782c236a57"}; // 3974606
234 : :
235 [ + - ]: 722 : pchMessageStart[0] = 0x0b;
236 : 722 : pchMessageStart[1] = 0x11;
237 : 722 : pchMessageStart[2] = 0x09;
238 : 722 : pchMessageStart[3] = 0x07;
239 : 722 : nDefaultPort = 18333;
240 : 722 : nPruneAfterHeight = 1000;
241 : 722 : m_assumed_blockchain_size = 200;
242 : 722 : m_assumed_chain_state_size = 19;
243 : :
244 [ + - ]: 722 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
245 [ + - ]: 722 : consensus.hashGenesisBlock = genesis.GetHash();
246 [ - + ]: 722 : assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
247 [ - + ]: 722 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
248 : :
249 [ - + ]: 722 : vFixedSeeds.clear();
250 : 722 : vSeeds.clear();
251 : : // nodes with support for servicebits filtering should be at the top
252 [ + - ]: 722 : vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
253 [ + - ]: 722 : vSeeds.emplace_back("seed.tbtc.petertodd.net.");
254 [ + - ]: 722 : vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
255 [ + - ]: 722 : vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
256 [ + - ]: 722 : vSeeds.emplace_back("seed.testnet.achownodes.xyz."); // Ava Chow, only supports x1, x5, x9, x49, x809, x849, xd, x400, x404, x408, x448, xc08, xc48, x40c
257 : :
258 [ + - + - ]: 722 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
259 [ + - + - ]: 722 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
260 [ + - + - ]: 722 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
261 [ + - ]: 722 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
262 [ + - ]: 722 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
263 : :
264 [ + - ]: 722 : bech32_hrp = "tb";
265 : :
266 [ + - + - ]: 722 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
267 : :
268 : 722 : fDefaultConsistencyChecks = false;
269 : 722 : m_is_mockable_chain = false;
270 : :
271 : 722 : m_assumeutxo_data = {
272 : : {
273 : : .height = 2'500'000,
274 [ + - ]: 722 : .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}},
275 : : .m_chain_tx_count = 66484552,
276 : : .blockhash = consteval_ctor(uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"}),
277 : : }
278 [ + - ]: 722 : };
279 : :
280 : 722 : chainTxData = ChainTxData{
281 : : // Data from RPC: getchaintxstats 4096 00000000000003fc7967410ba2d0a8a8d50daedc318d43e8baf1a9782c236a57
282 : : .nTime = 1741042082,
283 : : .tx_count = 475477615,
284 : : .dTxRate = 17.15933950357594,
285 : : };
286 : 722 : }
287 : : };
288 : :
289 : : /**
290 : : * Testnet (v4): public test network which is reset from time to time.
291 : : */
292 : 0 : class CTestNet4Params : public CChainParams {
293 : : public:
294 : 617 : CTestNet4Params() {
295 : 617 : m_chain_type = ChainType::TESTNET4;
296 : 617 : consensus.signet_blocks = false;
297 [ - + ]: 617 : consensus.signet_challenge.clear();
298 : 617 : consensus.nSubsidyHalvingInterval = 210000;
299 : 617 : consensus.BIP34Height = 1;
300 : 617 : consensus.BIP34Hash = uint256{};
301 : 617 : consensus.BIP65Height = 1;
302 : 617 : consensus.BIP66Height = 1;
303 : 617 : consensus.CSVHeight = 1;
304 : 617 : consensus.SegwitHeight = 1;
305 : 617 : consensus.MinBIP9WarningHeight = 0;
306 : 617 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
307 : 617 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
308 : 617 : consensus.nPowTargetSpacing = 10 * 60;
309 : 617 : consensus.fPowAllowMinDifficultyBlocks = true;
310 : 617 : consensus.enforce_BIP94 = true;
311 : 617 : consensus.fPowNoRetargeting = false;
312 : 617 : consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
313 : 617 : consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
314 : 617 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
315 : 617 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
316 : 617 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
317 : 617 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
318 : :
319 : : // Deployment of Taproot (BIPs 340-342)
320 : 617 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
321 : 617 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
322 : 617 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
323 : 617 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
324 : :
325 : 617 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000001d6dce8651b6094e4c1"};
326 : 617 : consensus.defaultAssumeValid = uint256{"0000000000003ed4f08dbdf6f7d6b271a6bcffce25675cb40aa9fa43179a89f3"}; // 72600
327 : :
328 : 617 : pchMessageStart[0] = 0x1c;
329 : 617 : pchMessageStart[1] = 0x16;
330 : 617 : pchMessageStart[2] = 0x3f;
331 : 617 : pchMessageStart[3] = 0x28;
332 : 617 : nDefaultPort = 48333;
333 : 617 : nPruneAfterHeight = 1000;
334 : 617 : m_assumed_blockchain_size = 11;
335 : 617 : m_assumed_chain_state_size = 1;
336 : :
337 : 617 : const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e";
338 [ + - ]: 617 : const CScript testnet4_genesis_script = CScript() << "000000000000000000000000000000000000000000000000000000000000000000"_hex << OP_CHECKSIG;
339 : 1234 : genesis = CreateGenesisBlock(testnet4_genesis_msg,
340 : : testnet4_genesis_script,
341 : : 1714777860,
342 : : 393743547,
343 : : 0x1d00ffff,
344 : : 1,
345 [ + - ]: 617 : 50 * COIN);
346 [ + - ]: 617 : consensus.hashGenesisBlock = genesis.GetHash();
347 [ - + ]: 617 : assert(consensus.hashGenesisBlock == uint256{"00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"});
348 [ - + ]: 617 : assert(genesis.hashMerkleRoot == uint256{"7aa0a7ae1e223414cb807e40cd57e667b718e42aaf9306db9102fe28912b7b4e"});
349 : :
350 [ - + ]: 617 : vFixedSeeds.clear();
351 : 617 : vSeeds.clear();
352 : : // nodes with support for servicebits filtering should be at the top
353 [ + - ]: 617 : vSeeds.emplace_back("seed.testnet4.bitcoin.sprovoost.nl."); // Sjors Provoost
354 [ + - ]: 617 : vSeeds.emplace_back("seed.testnet4.wiz.biz."); // Jason Maurice
355 : :
356 [ + - + - ]: 617 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
357 [ + - + - ]: 617 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
358 [ + - + - ]: 617 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
359 [ + - ]: 617 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
360 [ + - ]: 617 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
361 : :
362 [ + - ]: 617 : bech32_hrp = "tb";
363 : :
364 [ + - + - ]: 617 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_testnet4), std::end(chainparams_seed_testnet4));
365 : :
366 : 617 : fDefaultConsistencyChecks = false;
367 : 617 : m_is_mockable_chain = false;
368 : :
369 : 617 : m_assumeutxo_data = {
370 : : {}
371 [ + - ]: 617 : };
372 : :
373 : 617 : chainTxData = ChainTxData{
374 : : // Data from RPC: getchaintxstats 4096 0000000000003ed4f08dbdf6f7d6b271a6bcffce25675cb40aa9fa43179a89f3
375 : : .nTime = 1741070246,
376 : : .tx_count = 7653966,
377 : : .dTxRate = 1.239174414591965,
378 : : };
379 : 617 : }
380 : : };
381 : :
382 : : /**
383 : : * Signet: test network with an additional consensus parameter (see BIP325).
384 : : */
385 : 0 : class SigNetParams : public CChainParams {
386 : : public:
387 : 723 : explicit SigNetParams(const SigNetOptions& options)
388 : 723 : {
389 : 723 : std::vector<uint8_t> bin;
390 [ - + ]: 723 : vFixedSeeds.clear();
391 : 723 : vSeeds.clear();
392 : :
393 [ + + ]: 723 : if (!options.challenge) {
394 [ + - ]: 1444 : bin = "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"_hex_v_u8;
395 [ + - + - ]: 722 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_signet), std::end(chainparams_seed_signet));
396 [ + - ]: 722 : vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
397 [ + - ]: 722 : vSeeds.emplace_back("seed.signet.achownodes.xyz."); // Ava Chow, only supports x1, x5, x9, x49, x809, x849, xd, x400, x404, x408, x448, xc08, xc48, x40c
398 : :
399 : 722 : consensus.nMinimumChainWork = uint256{"000000000000000000000000000000000000000000000000000002b517f3d1a1"};
400 : 722 : consensus.defaultAssumeValid = uint256{"000000895a110f46e59eb82bbc5bfb67fa314656009c295509c21b4999f5180a"}; // 237722
401 : 722 : m_assumed_blockchain_size = 9;
402 : 722 : m_assumed_chain_state_size = 1;
403 : 722 : chainTxData = ChainTxData{
404 : : // Data from RPC: getchaintxstats 4096 000000895a110f46e59eb82bbc5bfb67fa314656009c295509c21b4999f5180a
405 : : .nTime = 1741019645,
406 : : .tx_count = 16540736,
407 : : .dTxRate = 1.064918879911595,
408 : : };
409 : : } else {
410 [ + - ]: 1 : bin = *options.challenge;
411 [ + - ]: 1 : consensus.nMinimumChainWork = uint256{};
412 : 1 : consensus.defaultAssumeValid = uint256{};
413 : 1 : m_assumed_blockchain_size = 0;
414 : 1 : m_assumed_chain_state_size = 0;
415 : 1 : chainTxData = ChainTxData{
416 : : 0,
417 : : 0,
418 : : 0,
419 : : };
420 [ + - + - ]: 2 : LogPrintf("Signet with challenge %s\n", HexStr(bin));
421 : : }
422 : :
423 [ - + ]: 723 : if (options.seeds) {
424 [ # # ]: 0 : vSeeds = *options.seeds;
425 : : }
426 : :
427 : 723 : m_chain_type = ChainType::SIGNET;
428 : 723 : consensus.signet_blocks = true;
429 [ + - ]: 723 : consensus.signet_challenge.assign(bin.begin(), bin.end());
430 : 723 : consensus.nSubsidyHalvingInterval = 210000;
431 : 723 : consensus.BIP34Height = 1;
432 [ + - ]: 723 : consensus.BIP34Hash = uint256{};
433 : 723 : consensus.BIP65Height = 1;
434 : 723 : consensus.BIP66Height = 1;
435 : 723 : consensus.CSVHeight = 1;
436 : 723 : consensus.SegwitHeight = 1;
437 : 723 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
438 : 723 : consensus.nPowTargetSpacing = 10 * 60;
439 : 723 : consensus.fPowAllowMinDifficultyBlocks = false;
440 : 723 : consensus.enforce_BIP94 = false;
441 : 723 : consensus.fPowNoRetargeting = false;
442 : 723 : consensus.nRuleChangeActivationThreshold = 1815; // 90% of 2016
443 : 723 : consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
444 : 723 : consensus.MinBIP9WarningHeight = 0;
445 : 723 : consensus.powLimit = uint256{"00000377ae000000000000000000000000000000000000000000000000000000"};
446 : 723 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
447 : 723 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
448 : 723 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
449 : 723 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
450 : :
451 : : // Activation of Taproot (BIPs 340-342)
452 : 723 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
453 : 723 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
454 : 723 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
455 : 723 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
456 : :
457 : : // message start is defined as the first 4 bytes of the sha256d of the block script
458 [ + - ]: 723 : HashWriter h{};
459 [ + - ]: 723 : h << consensus.signet_challenge;
460 [ + - ]: 723 : uint256 hash = h.GetHash();
461 : 723 : std::copy_n(hash.begin(), 4, pchMessageStart.begin());
462 : :
463 : 723 : nDefaultPort = 38333;
464 : 723 : nPruneAfterHeight = 1000;
465 : :
466 [ + - ]: 723 : genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
467 [ + - ]: 723 : consensus.hashGenesisBlock = genesis.GetHash();
468 [ - + ]: 723 : assert(consensus.hashGenesisBlock == uint256{"00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"});
469 [ - + ]: 723 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
470 : :
471 : 723 : m_assumeutxo_data = {
472 : : {
473 : : .height = 160'000,
474 [ + - ]: 723 : .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}},
475 : : .m_chain_tx_count = 2289496,
476 : : .blockhash = consteval_ctor(uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"}),
477 : : }
478 [ + - ]: 723 : };
479 : :
480 [ + - + - ]: 723 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
481 [ + - + - ]: 723 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
482 [ + - + - ]: 723 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
483 [ + - ]: 723 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
484 [ + - ]: 723 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
485 : :
486 [ + - ]: 723 : bech32_hrp = "tb";
487 : :
488 : 723 : fDefaultConsistencyChecks = false;
489 : 723 : m_is_mockable_chain = false;
490 : 723 : }
491 : : };
492 : :
493 : : /**
494 : : * Regression test: intended for private networks only. Has minimal difficulty to ensure that
495 : : * blocks can be found instantly.
496 : : */
497 : 0 : class CRegTestParams : public CChainParams
498 : : {
499 : : public:
500 : 809 : explicit CRegTestParams(const RegTestOptions& opts)
501 : 809 : {
502 : 809 : m_chain_type = ChainType::REGTEST;
503 : 809 : consensus.signet_blocks = false;
504 [ - + ]: 809 : consensus.signet_challenge.clear();
505 : 809 : consensus.nSubsidyHalvingInterval = 150;
506 : 809 : consensus.BIP34Height = 1; // Always active unless overridden
507 [ + - ]: 809 : consensus.BIP34Hash = uint256();
508 : 809 : consensus.BIP65Height = 1; // Always active unless overridden
509 : 809 : consensus.BIP66Height = 1; // Always active unless overridden
510 : 809 : consensus.CSVHeight = 1; // Always active unless overridden
511 : 809 : consensus.SegwitHeight = 0; // Always active unless overridden
512 : 809 : consensus.MinBIP9WarningHeight = 0;
513 : 809 : consensus.powLimit = uint256{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
514 : 809 : consensus.nPowTargetTimespan = 24 * 60 * 60; // one day
515 : 809 : consensus.nPowTargetSpacing = 10 * 60;
516 : 809 : consensus.fPowAllowMinDifficultyBlocks = true;
517 : 809 : consensus.enforce_BIP94 = opts.enforce_bip94;
518 : 809 : consensus.fPowNoRetargeting = true;
519 : 809 : consensus.nRuleChangeActivationThreshold = 108; // 75% for testchains
520 : 809 : consensus.nMinerConfirmationWindow = 144; // Faster than normal for regtest (144 instead of 2016)
521 : :
522 : 809 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
523 : 809 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
524 : 809 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
525 : 809 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
526 : :
527 : 809 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
528 : 809 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
529 : 809 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
530 : 809 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
531 : :
532 : 809 : consensus.nMinimumChainWork = uint256{};
533 : 809 : consensus.defaultAssumeValid = uint256{};
534 : :
535 [ + - ]: 809 : pchMessageStart[0] = 0xfa;
536 : 809 : pchMessageStart[1] = 0xbf;
537 : 809 : pchMessageStart[2] = 0xb5;
538 : 809 : pchMessageStart[3] = 0xda;
539 : 809 : nDefaultPort = 18444;
540 [ + - ]: 809 : nPruneAfterHeight = opts.fastprune ? 100 : 1000;
541 : 809 : m_assumed_blockchain_size = 0;
542 : 809 : m_assumed_chain_state_size = 0;
543 : :
544 [ + + - - : 812 : for (const auto& [dep, height] : opts.activation_heights) {
+ - - - ]
545 [ - - + - : 3 : switch (dep) {
- - ]
546 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_SEGWIT:
547 : 0 : consensus.SegwitHeight = int{height};
548 : 0 : break;
549 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB:
550 : 0 : consensus.BIP34Height = int{height};
551 : 0 : break;
552 : 3 : case Consensus::BuriedDeployment::DEPLOYMENT_DERSIG:
553 : 3 : consensus.BIP66Height = int{height};
554 : 3 : break;
555 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CLTV:
556 : 0 : consensus.BIP65Height = int{height};
557 : 0 : break;
558 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CSV:
559 : 0 : consensus.CSVHeight = int{height};
560 : 0 : break;
561 : : }
562 : : }
563 : :
564 [ + + ]: 811 : for (const auto& [deployment_pos, version_bits_params] : opts.version_bits_parameters) {
565 : 2 : consensus.vDeployments[deployment_pos].nStartTime = version_bits_params.start_time;
566 : 2 : consensus.vDeployments[deployment_pos].nTimeout = version_bits_params.timeout;
567 : 2 : consensus.vDeployments[deployment_pos].min_activation_height = version_bits_params.min_activation_height;
568 : : }
569 : :
570 [ + - ]: 809 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
571 [ + - ]: 809 : consensus.hashGenesisBlock = genesis.GetHash();
572 [ - + ]: 809 : assert(consensus.hashGenesisBlock == uint256{"0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"});
573 [ - + ]: 809 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
574 : :
575 [ - + ]: 809 : vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
576 : 809 : vSeeds.clear();
577 [ + - ]: 809 : vSeeds.emplace_back("dummySeed.invalid.");
578 : :
579 : 809 : fDefaultConsistencyChecks = true;
580 : 809 : m_is_mockable_chain = true;
581 : :
582 : 809 : m_assumeutxo_data = {
583 : : { // For use by unit tests
584 : : .height = 110,
585 [ + - ]: 809 : .hash_serialized = AssumeutxoHash{uint256{"6657b736d4fe4db0cbc796789e812d5dba7f5c143764b1b6905612f1830609d1"}},
586 : : .m_chain_tx_count = 111,
587 : : .blockhash = consteval_ctor(uint256{"696e92821f65549c7ee134edceeeeaaa4105647a3c4fd9f298c0aec0ab50425c"}),
588 : : },
589 : : {
590 : : // For use by fuzz target src/test/fuzz/utxo_snapshot.cpp
591 : : .height = 200,
592 : 809 : .hash_serialized = AssumeutxoHash{uint256{"7e3b7780fbd2fa479a01f66950dc8f728dc1b11f03d06d5bf223168520df3a48"}},
593 : : .m_chain_tx_count = 201,
594 : : .blockhash = consteval_ctor(uint256{"5e93653318f294fb5aa339d00bbf8cf1c3515488ad99412c37608b139ea63b27"}),
595 : : },
596 : : {
597 : : // For use by test/functional/feature_assumeutxo.py
598 : : .height = 299,
599 : 809 : .hash_serialized = AssumeutxoHash{uint256{"a4bf3407ccb2cc0145c49ebba8fa91199f8a3903daf0883875941497d2493c27"}},
600 : : .m_chain_tx_count = 334,
601 : : .blockhash = consteval_ctor(uint256{"3bb7ce5eba0be48939b7a521ac1ba9316afee2c7bada3a0cca24188e6d7d96c0"}),
602 : : },
603 [ + - ]: 809 : };
604 : :
605 : 809 : chainTxData = ChainTxData{
606 : : 0,
607 : : 0,
608 : : 0
609 : : };
610 : :
611 [ + - + - ]: 809 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
612 [ + - + - ]: 809 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
613 [ + - + - ]: 809 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
614 [ + - ]: 809 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
615 [ + - ]: 809 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
616 : :
617 [ + - ]: 809 : bech32_hrp = "bcrt";
618 : 809 : }
619 : : };
620 : :
621 : 723 : std::unique_ptr<const CChainParams> CChainParams::SigNet(const SigNetOptions& options)
622 : : {
623 : 723 : return std::make_unique<const SigNetParams>(options);
624 : : }
625 : :
626 : 809 : std::unique_ptr<const CChainParams> CChainParams::RegTest(const RegTestOptions& options)
627 : : {
628 : 809 : return std::make_unique<const CRegTestParams>(options);
629 : : }
630 : :
631 : 1365 : std::unique_ptr<const CChainParams> CChainParams::Main()
632 : : {
633 : 1365 : return std::make_unique<const CMainParams>();
634 : : }
635 : :
636 : 722 : std::unique_ptr<const CChainParams> CChainParams::TestNet()
637 : : {
638 : 722 : return std::make_unique<const CTestNetParams>();
639 : : }
640 : :
641 : 617 : std::unique_ptr<const CChainParams> CChainParams::TestNet4()
642 : : {
643 : 617 : return std::make_unique<const CTestNet4Params>();
644 : : }
645 : :
646 : 12 : std::vector<int> CChainParams::GetAvailableSnapshotHeights() const
647 : : {
648 : 12 : std::vector<int> heights;
649 [ + - ]: 12 : heights.reserve(m_assumeutxo_data.size());
650 : :
651 [ + + ]: 48 : for (const auto& data : m_assumeutxo_data) {
652 [ + - ]: 36 : heights.emplace_back(data.height);
653 : : }
654 : 12 : return heights;
655 : 0 : }
656 : :
657 : 0 : std::optional<ChainType> GetNetworkForMagic(const MessageStartChars& message)
658 : : {
659 : 0 : const auto mainnet_msg = CChainParams::Main()->MessageStart();
660 : 0 : const auto testnet_msg = CChainParams::TestNet()->MessageStart();
661 : 0 : const auto testnet4_msg = CChainParams::TestNet4()->MessageStart();
662 : 0 : const auto regtest_msg = CChainParams::RegTest({})->MessageStart();
663 : 0 : const auto signet_msg = CChainParams::SigNet({})->MessageStart();
664 : :
665 [ # # ]: 0 : if (std::ranges::equal(message, mainnet_msg)) {
666 : 0 : return ChainType::MAIN;
667 [ # # ]: 0 : } else if (std::ranges::equal(message, testnet_msg)) {
668 : 0 : return ChainType::TESTNET;
669 [ # # ]: 0 : } else if (std::ranges::equal(message, testnet4_msg)) {
670 : 0 : return ChainType::TESTNET4;
671 [ # # ]: 0 : } else if (std::ranges::equal(message, regtest_msg)) {
672 : 0 : return ChainType::REGTEST;
673 [ # # ]: 0 : } else if (std::ranges::equal(message, signet_msg)) {
674 : 0 : return ChainType::SIGNET;
675 : : }
676 : 0 : return std::nullopt;
677 [ # # # # ]: 0 : }
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