Branch data Line data Source code
1 : : // Copyright (c) 2010 Satoshi Nakamoto
2 : : // Copyright (c) 2009-present 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 <crypto/hex_base.h>
13 : : #include <hash.h>
14 : : #include <kernel/messagestartchars.h>
15 : : #include <primitives/block.h>
16 : : #include <primitives/transaction.h>
17 : : #include <script/interpreter.h>
18 : : #include <script/script.h>
19 : : #include <script/verify_flags.h>
20 : : #include <uint256.h>
21 : : #include <util/chaintype.h>
22 : : #include <util/log.h>
23 : : #include <util/strencodings.h>
24 : :
25 : : #include <algorithm>
26 : : #include <array>
27 : : #include <cassert>
28 : : #include <cstdint>
29 : : #include <cstring>
30 : : #include <iterator>
31 : : #include <map>
32 : : #include <span>
33 : : #include <utility>
34 : :
35 : : using namespace util::hex_literals;
36 : :
37 : 8092 : static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
38 : : {
39 : 8092 : CMutableTransaction txNew;
40 : 8092 : txNew.version = 1;
41 [ + - ]: 8092 : txNew.vin.resize(1);
42 [ + - ]: 8092 : txNew.vout.resize(1);
43 [ + - + - : 16184 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ - ]
44 : 8092 : txNew.vout[0].nValue = genesisReward;
45 : 8092 : txNew.vout[0].scriptPubKey = genesisOutputScript;
46 : :
47 : 8092 : CBlock genesis;
48 : 8092 : genesis.nTime = nTime;
49 : 8092 : genesis.nBits = nBits;
50 : 8092 : genesis.nNonce = nNonce;
51 : 8092 : genesis.nVersion = nVersion;
52 [ + - + - : 16184 : genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
- + ]
53 : 8092 : genesis.hashPrevBlock.SetNull();
54 [ + - ]: 8092 : genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
55 : 8092 : return genesis;
56 : 8092 : }
57 : :
58 : : /**
59 : : * Build the genesis block. Note that the output of its generation
60 : : * transaction cannot be spent since it did not originally exist in the
61 : : * database.
62 : : *
63 : : * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
64 : : * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
65 : : * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
66 : : * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
67 : : * vMerkleTree: 4a5e1e
68 : : */
69 : 6726 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
70 : : {
71 : 6726 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
72 [ + - ]: 6726 : const CScript genesisOutputScript = CScript() << "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"_hex << OP_CHECKSIG;
73 [ + - ]: 6726 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
74 : 6726 : }
75 : :
76 : : /**
77 : : * Main network on which people trade goods and services.
78 : : */
79 : 0 : class CMainParams : public CChainParams {
80 : : public:
81 : 1379 : CMainParams() {
82 : 1379 : m_chain_type = ChainType::MAIN;
83 : 1379 : consensus.signet_blocks = false;
84 [ - + ]: 1379 : consensus.signet_challenge.clear();
85 : 1379 : consensus.nSubsidyHalvingInterval = 210000;
86 : 1379 : consensus.script_flag_exceptions.emplace( // BIP16 exception
87 [ + - ]: 1379 : uint256{"00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22"}, SCRIPT_VERIFY_NONE);
88 : 1379 : consensus.script_flag_exceptions.emplace( // Taproot exception
89 [ + - ]: 1379 : uint256{"0000000000000000000f14c35b2d841e986ab5441de8c585d5ffe55ea1e395ad"}, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS);
90 : 1379 : consensus.BIP34Height = 227931;
91 : 1379 : consensus.BIP34Hash = uint256{"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"};
92 : 1379 : consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
93 : 1379 : consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
94 : 1379 : consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
95 : 1379 : consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
96 : 1379 : consensus.MinBIP9WarningHeight = 711648; // taproot activation height + miner confirmation window
97 : 1379 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
98 : 1379 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
99 : 1379 : consensus.nPowTargetSpacing = 10 * 60;
100 : 1379 : consensus.fPowAllowMinDifficultyBlocks = false;
101 : 1379 : consensus.enforce_BIP94 = false;
102 : 1379 : consensus.fPowNoRetargeting = false;
103 [ + - ]: 1379 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
104 : 1379 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
105 : 1379 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
106 : 1379 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
107 : 1379 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
108 : 1379 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
109 : :
110 : 1379 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000001128750f82f4c366153a3a030"};
111 : 1379 : consensus.defaultAssumeValid = uint256{"00000000000000000000ccebd6d74d9194d8dcdc1d177c478e094bfad51ba5ac"}; // 938343
112 : :
113 : : /**
114 : : * The message start string is designed to be unlikely to occur in normal data.
115 : : * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
116 : : * a large 32-bit integer with any alignment.
117 : : */
118 : 1379 : pchMessageStart[0] = 0xf9;
119 : 1379 : pchMessageStart[1] = 0xbe;
120 : 1379 : pchMessageStart[2] = 0xb4;
121 : 1379 : pchMessageStart[3] = 0xd9;
122 : 1379 : nDefaultPort = 8333;
123 : 1379 : nPruneAfterHeight = 100000;
124 : 1379 : m_assumed_blockchain_size = 856;
125 : 1379 : m_assumed_chain_state_size = 14;
126 : :
127 [ + - ]: 1379 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
128 [ + - ]: 1379 : consensus.hashGenesisBlock = genesis.GetHash();
129 [ - + ]: 1379 : assert(consensus.hashGenesisBlock == uint256{"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"});
130 [ - + ]: 1379 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
131 : :
132 : : // Note that of those which support the service bits prefix, most only support a subset of
133 : : // possible options.
134 : : // This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
135 : : // service bits we want, but we should get them updated to support all service bits wanted by any
136 : : // release ASAP to avoid it where possible.
137 [ + - ]: 1379 : vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
138 [ + - ]: 1379 : vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
139 [ + - ]: 1379 : vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
140 [ + - ]: 1379 : vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
141 [ + - ]: 1379 : vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
142 [ + - ]: 1379 : vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
143 [ + - ]: 1379 : vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
144 [ + - ]: 1379 : 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
145 : :
146 [ + - + - ]: 1379 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
147 [ + - + - ]: 1379 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
148 [ + - + - ]: 1379 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
149 [ + - ]: 1379 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
150 [ + - ]: 1379 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
151 : :
152 [ + - ]: 1379 : bech32_hrp = "bc";
153 : :
154 [ + - + - ]: 1379 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
155 : :
156 : 1379 : fDefaultConsistencyChecks = false;
157 : 1379 : m_is_mockable_chain = false;
158 : :
159 : 1379 : m_assumeutxo_data = {
160 : : {
161 : : .height = 840'000,
162 : 1379 : .hash_serialized = AssumeutxoHash{uint256{"a2a5521b1b5ab65f67818e5e8eccabb7171a517f9e2382208f77687310768f96"}},
163 : : .m_chain_tx_count = 991032194,
164 : : .blockhash = uint256{"0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5"},
165 : : },
166 : : {
167 : : .height = 880'000,
168 : 1379 : .hash_serialized = AssumeutxoHash{uint256{"dbd190983eaf433ef7c15f78a278ae42c00ef52e0fd2a54953782175fbadcea9"}},
169 : : .m_chain_tx_count = 1145604538,
170 : : .blockhash = uint256{"000000000000000000010b17283c3c400507969a9c2afd1dcf2082ec5cca2880"},
171 : : },
172 : : {
173 : : .height = 910'000,
174 : 1379 : .hash_serialized = AssumeutxoHash{uint256{"4daf8a17b4902498c5787966a2b51c613acdab5df5db73f196fa59a4da2f1568"}},
175 : : .m_chain_tx_count = 1226586151,
176 : : .blockhash = uint256{"0000000000000000000108970acb9522ffd516eae17acddcb1bd16469194a821"},
177 : : },
178 : : {
179 : : .height = 935'000,
180 [ + - ]: 1379 : .hash_serialized = AssumeutxoHash{uint256{"e4b90ef9eae834f56c4b64d2d50143cee10ad87994c614d7d04125e2a6025050"}},
181 : : .m_chain_tx_count = 1305397408,
182 : : .blockhash = uint256{"0000000000000000000147034958af1652b2b91bba607beacc5e72a56f0fb5ee"},
183 : : }
184 [ + - ]: 1379 : };
185 : :
186 : 1379 : chainTxData = ChainTxData{
187 : : // Data from RPC: getchaintxstats 4096 00000000000000000000ccebd6d74d9194d8dcdc1d177c478e094bfad51ba5ac
188 : : .nTime = 1772055173,
189 : : .tx_count = 1315805869,
190 : : .dTxRate = 5.40111006496122,
191 : : };
192 : :
193 : : // Generated by headerssync-params.py on 2026-02-25.
194 : 1379 : m_headers_sync_params = HeadersSyncParams{
195 : : .commitment_period = 641,
196 : : .redownload_buffer_size = 15218, // 15218/641 = ~23.7 commitments
197 : : };
198 : 1379 : }
199 : : };
200 : :
201 : : /**
202 : : * Testnet (v3): public test network which is reset from time to time.
203 : : */
204 : 0 : class CTestNetParams : public CChainParams {
205 : : public:
206 : 1366 : CTestNetParams() {
207 : 1366 : m_chain_type = ChainType::TESTNET;
208 : 1366 : consensus.signet_blocks = false;
209 [ - + ]: 1366 : consensus.signet_challenge.clear();
210 : 1366 : consensus.nSubsidyHalvingInterval = 210000;
211 : 1366 : consensus.script_flag_exceptions.emplace( // BIP16 exception
212 [ + - ]: 1366 : uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
213 : 1366 : consensus.BIP34Height = 21111;
214 : 1366 : consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
215 : 1366 : consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
216 : 1366 : consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
217 : 1366 : consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
218 : 1366 : consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
219 : 1366 : consensus.MinBIP9WarningHeight = 2013984; // taproot activation height + miner confirmation window
220 : 1366 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
221 : 1366 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
222 : 1366 : consensus.nPowTargetSpacing = 10 * 60;
223 : 1366 : consensus.fPowAllowMinDifficultyBlocks = true;
224 : 1366 : consensus.enforce_BIP94 = false;
225 : 1366 : consensus.fPowNoRetargeting = false;
226 [ + - ]: 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
227 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
228 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
229 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
230 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
231 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
232 : :
233 : 1366 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000017dde1c649f3708d14b6"};
234 : 1366 : consensus.defaultAssumeValid = uint256{"000000007a61e4230b28ac5cb6b5e5a0130de37ac1faf2f8987d2fa6505b67f4"}; // 4842348
235 : :
236 : 1366 : pchMessageStart[0] = 0x0b;
237 : 1366 : pchMessageStart[1] = 0x11;
238 : 1366 : pchMessageStart[2] = 0x09;
239 : 1366 : pchMessageStart[3] = 0x07;
240 : 1366 : nDefaultPort = 18333;
241 : 1366 : nPruneAfterHeight = 1000;
242 : 1366 : m_assumed_blockchain_size = 245;
243 : 1366 : m_assumed_chain_state_size = 19;
244 : :
245 [ + - ]: 1366 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
246 [ + - ]: 1366 : consensus.hashGenesisBlock = genesis.GetHash();
247 [ - + ]: 1366 : assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
248 [ - + ]: 1366 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
249 : :
250 [ - + ]: 1366 : vFixedSeeds.clear();
251 : 1366 : vSeeds.clear();
252 : : // nodes with support for servicebits filtering should be at the top
253 [ + - ]: 1366 : vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
254 [ + - ]: 1366 : vSeeds.emplace_back("seed.tbtc.petertodd.net.");
255 [ + - ]: 1366 : vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
256 [ + - ]: 1366 : vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
257 [ + - ]: 1366 : 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
258 : :
259 [ + - + - ]: 1366 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
260 [ + - + - ]: 1366 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
261 [ + - + - ]: 1366 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
262 [ + - ]: 1366 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
263 [ + - ]: 1366 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
264 : :
265 [ + - ]: 1366 : bech32_hrp = "tb";
266 : :
267 [ + - + - ]: 1366 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
268 : :
269 : 1366 : fDefaultConsistencyChecks = false;
270 : 1366 : m_is_mockable_chain = false;
271 : :
272 : 1366 : m_assumeutxo_data = {
273 : : {
274 : : .height = 2'500'000,
275 : 1366 : .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}},
276 : : .m_chain_tx_count = 66484552,
277 : : .blockhash = uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"},
278 : : },
279 : : {
280 : : .height = 4'840'000,
281 [ + - ]: 1366 : .hash_serialized = AssumeutxoHash{uint256{"ce6bb677bb2ee9789c4a1c9d73e6683c53fc20e8fdbedbdaaf468982a0c8db2a"}},
282 : : .m_chain_tx_count = 536078574,
283 : : .blockhash = uint256{"00000000000000f4971a7fb37fbdff89315b69a2e1920c467654a382f0d64786"},
284 : : }
285 [ + - ]: 1366 : };
286 : :
287 : 1366 : chainTxData = ChainTxData{
288 : : // Data from RPC: getchaintxstats 4096 000000007a61e4230b28ac5cb6b5e5a0130de37ac1faf2f8987d2fa6505b67f4
289 : : .nTime = 1772051651,
290 : : .tx_count = 536108416,
291 : : .dTxRate = 0.02691479016257117,
292 : : };
293 : :
294 : : // Generated by headerssync-params.py on 2026-02-25.
295 : 1366 : m_headers_sync_params = HeadersSyncParams{
296 : : .commitment_period = 673,
297 : : .redownload_buffer_size = 14460, // 14460/673 = ~21.5 commitments
298 : : };
299 : 1366 : }
300 : : };
301 : :
302 : : /**
303 : : * Testnet (v4): public test network which is reset from time to time.
304 : : */
305 : 0 : class CTestNet4Params : public CChainParams {
306 : : public:
307 : 1366 : CTestNet4Params() {
308 : 1366 : m_chain_type = ChainType::TESTNET4;
309 : 1366 : consensus.signet_blocks = false;
310 [ - + ]: 1366 : consensus.signet_challenge.clear();
311 : 1366 : consensus.nSubsidyHalvingInterval = 210000;
312 : 1366 : consensus.BIP34Height = 1;
313 : 1366 : consensus.BIP34Hash = uint256{};
314 : 1366 : consensus.BIP65Height = 1;
315 : 1366 : consensus.BIP66Height = 1;
316 : 1366 : consensus.CSVHeight = 1;
317 : 1366 : consensus.SegwitHeight = 1;
318 : 1366 : consensus.MinBIP9WarningHeight = 0;
319 : 1366 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
320 : 1366 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
321 : 1366 : consensus.nPowTargetSpacing = 10 * 60;
322 : 1366 : consensus.fPowAllowMinDifficultyBlocks = true;
323 : 1366 : consensus.enforce_BIP94 = true;
324 : 1366 : consensus.fPowNoRetargeting = false;
325 : :
326 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
327 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
328 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
329 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
330 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
331 : 1366 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
332 : :
333 : 1366 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000009a0fe15d0177d086304"};
334 : 1366 : consensus.defaultAssumeValid = uint256{"0000000002368b1e4ee27e2e85676ae6f9f9e69579b29093e9a82c170bf7cf8a"}; // 123613
335 : :
336 : 1366 : pchMessageStart[0] = 0x1c;
337 : 1366 : pchMessageStart[1] = 0x16;
338 : 1366 : pchMessageStart[2] = 0x3f;
339 : 1366 : pchMessageStart[3] = 0x28;
340 : 1366 : nDefaultPort = 48333;
341 : 1366 : nPruneAfterHeight = 1000;
342 : 1366 : m_assumed_blockchain_size = 31;
343 : 1366 : m_assumed_chain_state_size = 2;
344 : :
345 : 1366 : const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e";
346 [ + - ]: 1366 : const CScript testnet4_genesis_script = CScript() << "000000000000000000000000000000000000000000000000000000000000000000"_hex << OP_CHECKSIG;
347 : 2732 : genesis = CreateGenesisBlock(testnet4_genesis_msg,
348 : : testnet4_genesis_script,
349 : : 1714777860,
350 : : 393743547,
351 : : 0x1d00ffff,
352 : : 1,
353 [ + - ]: 1366 : 50 * COIN);
354 [ + - ]: 1366 : consensus.hashGenesisBlock = genesis.GetHash();
355 [ - + ]: 1366 : assert(consensus.hashGenesisBlock == uint256{"00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"});
356 [ - + ]: 1366 : assert(genesis.hashMerkleRoot == uint256{"7aa0a7ae1e223414cb807e40cd57e667b718e42aaf9306db9102fe28912b7b4e"});
357 : :
358 [ - + ]: 1366 : vFixedSeeds.clear();
359 : 1366 : vSeeds.clear();
360 : : // nodes with support for servicebits filtering should be at the top
361 [ + - ]: 1366 : vSeeds.emplace_back("seed.testnet4.bitcoin.sprovoost.nl."); // Sjors Provoost
362 [ + - ]: 1366 : vSeeds.emplace_back("seed.testnet4.wiz.biz."); // Jason Maurice
363 : :
364 [ + - + - ]: 1366 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
365 [ + - + - ]: 1366 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
366 [ + - + - ]: 1366 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
367 [ + - ]: 1366 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
368 [ + - ]: 1366 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
369 : :
370 [ + - ]: 1366 : bech32_hrp = "tb";
371 : :
372 [ + - + - ]: 1366 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_testnet4), std::end(chainparams_seed_testnet4));
373 : :
374 : 1366 : fDefaultConsistencyChecks = false;
375 : 1366 : m_is_mockable_chain = false;
376 : :
377 : 1366 : m_assumeutxo_data = {
378 : : {
379 : : .height = 90'000,
380 : 1366 : .hash_serialized = AssumeutxoHash{uint256{"784fb5e98241de66fdd429f4392155c9e7db5c017148e66e8fdbc95746f8b9b5"}},
381 : : .m_chain_tx_count = 11347043,
382 : : .blockhash = uint256{"0000000002ebe8bcda020e0dd6ccfbdfac531d2f6a81457191b99fc2df2dbe3b"},
383 : : },
384 : : {
385 : : .height = 120'000,
386 [ + - ]: 1366 : .hash_serialized = AssumeutxoHash{uint256{"10b05d05ad468d0971162e1b222a4aa66caca89da2bb2a93f8f37fb29c4794b0"}},
387 : : .m_chain_tx_count = 14141057,
388 : : .blockhash = uint256{"000000000bd2317e51b3c5794981c35ba894ce27d3e772d5c39ecd9cbce01dc8"},
389 : : }
390 [ + - ]: 1366 : };
391 : :
392 : 1366 : chainTxData = ChainTxData{
393 : : // Data from RPC: getchaintxstats 4096 0000000002368b1e4ee27e2e85676ae6f9f9e69579b29093e9a82c170bf7cf8a
394 : : .nTime = 1772013387,
395 : : .tx_count = 14191421,
396 : : .dTxRate = 0.01848579579528412,
397 : : };
398 : :
399 : : // Generated by headerssync-params.py on 2026-02-25.
400 : 1366 : m_headers_sync_params = HeadersSyncParams{
401 : : .commitment_period = 606,
402 : : .redownload_buffer_size = 16092, // 16092/606 = ~26.6 commitments
403 : : };
404 : 1366 : }
405 : : };
406 : :
407 : : /**
408 : : * Signet: test network with an additional consensus parameter (see BIP325).
409 : : */
410 : 0 : class SigNetParams : public CChainParams {
411 : : public:
412 : 1367 : explicit SigNetParams(const SigNetOptions& options)
413 : 1367 : {
414 : 1367 : std::vector<uint8_t> bin;
415 [ - + ]: 1367 : vFixedSeeds.clear();
416 : 1367 : vSeeds.clear();
417 : :
418 [ + - ]: 1367 : if (!options.challenge) {
419 [ + - ]: 2734 : bin = "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"_hex_v_u8;
420 [ + - + - ]: 1367 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_signet), std::end(chainparams_seed_signet));
421 [ + - ]: 1367 : vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
422 [ + - ]: 1367 : 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
423 : :
424 : 1367 : consensus.nMinimumChainWork = uint256{"00000000000000000000000000000000000000000000000000000b463ea0a4b8"};
425 : 1367 : consensus.defaultAssumeValid = uint256{"00000008414aab61092ef93f1aacc54cf9e9f16af29ddad493b908a01ff5c329"}; // 293175
426 : 1367 : m_assumed_blockchain_size = 24;
427 : 1367 : m_assumed_chain_state_size = 4;
428 : 1367 : chainTxData = ChainTxData{
429 : : // Data from RPC: getchaintxstats 4096 00000008414aab61092ef93f1aacc54cf9e9f16af29ddad493b908a01ff5c329
430 : : .nTime = 1772055248,
431 : : .tx_count = 28676833,
432 : : .dTxRate = 0.06736623436338929,
433 : : };
434 : : } else {
435 [ # # ]: 0 : bin = *options.challenge;
436 : 0 : consensus.nMinimumChainWork = uint256{};
437 : 0 : consensus.defaultAssumeValid = uint256{};
438 : 0 : m_assumed_blockchain_size = 0;
439 : 0 : m_assumed_chain_state_size = 0;
440 : 0 : chainTxData = ChainTxData{
441 : : 0,
442 : : 0,
443 : : 0,
444 : : };
445 [ # # # # : 0 : LogInfo("Signet with challenge %s", HexStr(bin));
# # ]
446 : : }
447 : :
448 [ - + ]: 1367 : if (options.seeds) {
449 [ # # ]: 0 : vSeeds = *options.seeds;
450 : : }
451 : :
452 : 1367 : m_chain_type = ChainType::SIGNET;
453 : 1367 : consensus.signet_blocks = true;
454 [ + - ]: 1367 : consensus.signet_challenge.assign(bin.begin(), bin.end());
455 : 1367 : consensus.nSubsidyHalvingInterval = 210000;
456 : 1367 : consensus.BIP34Height = 1;
457 : 1367 : consensus.BIP34Hash = uint256{};
458 : 1367 : consensus.BIP65Height = 1;
459 : 1367 : consensus.BIP66Height = 1;
460 : 1367 : consensus.CSVHeight = 1;
461 : 1367 : consensus.SegwitHeight = 1;
462 : 1367 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
463 : 1367 : consensus.nPowTargetSpacing = 10 * 60;
464 : 1367 : consensus.fPowAllowMinDifficultyBlocks = false;
465 : 1367 : consensus.enforce_BIP94 = false;
466 : 1367 : consensus.fPowNoRetargeting = false;
467 : 1367 : consensus.MinBIP9WarningHeight = 0;
468 : 1367 : consensus.powLimit = uint256{"00000377ae000000000000000000000000000000000000000000000000000000"};
469 [ + - ]: 1367 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
470 : 1367 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
471 : 1367 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
472 : 1367 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
473 : 1367 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
474 : 1367 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
475 : :
476 : : // message start is defined as the first 4 bytes of the sha256d of the block script
477 [ + - ]: 1367 : HashWriter h{};
478 [ + - ]: 1367 : h << consensus.signet_challenge;
479 [ + - ]: 1367 : uint256 hash = h.GetHash();
480 : 1367 : std::copy_n(hash.begin(), 4, pchMessageStart.begin());
481 : :
482 : 1367 : nDefaultPort = 38333;
483 : 1367 : nPruneAfterHeight = 1000;
484 : :
485 [ + - ]: 1367 : genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
486 [ + - ]: 1367 : consensus.hashGenesisBlock = genesis.GetHash();
487 [ - + ]: 1367 : assert(consensus.hashGenesisBlock == uint256{"00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"});
488 [ - + ]: 1367 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
489 : :
490 : 1367 : m_assumeutxo_data = {
491 : : {
492 : : .height = 160'000,
493 : 1367 : .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}},
494 : : .m_chain_tx_count = 2289496,
495 : : .blockhash = uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"},
496 : : },
497 : : {
498 : : .height = 290'000,
499 [ + - ]: 1367 : .hash_serialized = AssumeutxoHash{uint256{"97267e000b4b876800167e71b9123f1529d13b14308abec2888bbd2160d14545"}},
500 : : .m_chain_tx_count = 28547497,
501 : : .blockhash = uint256{"0000000577f2741bb30cd9d39d6d71b023afbeb9764f6260786a97969d5c9ac0"},
502 : : }
503 [ + - ]: 1367 : };
504 : :
505 [ + - + - ]: 1367 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
506 [ + - + - ]: 1367 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
507 [ + - + - ]: 1367 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
508 [ + - ]: 1367 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
509 [ + - ]: 1367 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
510 : :
511 [ + - ]: 1367 : bech32_hrp = "tb";
512 : :
513 : 1367 : fDefaultConsistencyChecks = false;
514 : 1367 : m_is_mockable_chain = false;
515 : :
516 : : // Generated by headerssync-params.py on 2026-02-25.
517 : 1367 : m_headers_sync_params = HeadersSyncParams{
518 : : .commitment_period = 620,
519 : : .redownload_buffer_size = 15724, // 15724/620 = ~25.4 commitments
520 : : };
521 : 1367 : }
522 : : };
523 : :
524 : : /**
525 : : * Regression test: intended for private networks only. Has minimal difficulty to ensure that
526 : : * blocks can be found instantly.
527 : : */
528 : 0 : class CRegTestParams : public CChainParams
529 : : {
530 : : public:
531 : 2614 : explicit CRegTestParams(const RegTestOptions& opts)
532 : 2614 : {
533 : 2614 : m_chain_type = ChainType::REGTEST;
534 : 2614 : consensus.signet_blocks = false;
535 [ - + ]: 2614 : consensus.signet_challenge.clear();
536 : 2614 : consensus.nSubsidyHalvingInterval = 150;
537 : 2614 : consensus.BIP34Height = 1; // Always active unless overridden
538 : 2614 : consensus.BIP34Hash = uint256();
539 : 2614 : consensus.BIP65Height = 1; // Always active unless overridden
540 : 2614 : consensus.BIP66Height = 1; // Always active unless overridden
541 : 2614 : consensus.CSVHeight = 1; // Always active unless overridden
542 : 2614 : consensus.SegwitHeight = 0; // Always active unless overridden
543 : 2614 : consensus.MinBIP9WarningHeight = 0;
544 : 2614 : consensus.powLimit = uint256{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
545 : 2614 : consensus.nPowTargetTimespan = 24 * 60 * 60; // one day
546 : 2614 : consensus.nPowTargetSpacing = 10 * 60;
547 : 2614 : consensus.fPowAllowMinDifficultyBlocks = true;
548 : 2614 : consensus.enforce_BIP94 = opts.enforce_bip94;
549 : 2614 : consensus.fPowNoRetargeting = true;
550 : :
551 [ + - ]: 2614 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
552 : 2614 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
553 : 2614 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
554 : 2614 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
555 : 2614 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 108; // 75%
556 : 2614 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 144; // Faster than normal for regtest (144 instead of 2016)
557 : :
558 : 2614 : consensus.nMinimumChainWork = uint256{};
559 : 2614 : consensus.defaultAssumeValid = uint256{};
560 : :
561 : 2614 : pchMessageStart[0] = 0xfa;
562 : 2614 : pchMessageStart[1] = 0xbf;
563 : 2614 : pchMessageStart[2] = 0xb5;
564 : 2614 : pchMessageStart[3] = 0xda;
565 : 2614 : nDefaultPort = 18444;
566 [ + - ]: 2614 : nPruneAfterHeight = opts.fastprune ? 100 : 1000;
567 : 2614 : m_assumed_blockchain_size = 0;
568 : 2614 : m_assumed_chain_state_size = 0;
569 : :
570 [ + + - + : 3760 : for (const auto& [dep, height] : opts.activation_heights) {
- - - - ]
571 [ - + - - : 1146 : switch (dep) {
- - ]
572 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_SEGWIT:
573 : 0 : consensus.SegwitHeight = int{height};
574 : 0 : break;
575 : 1146 : case Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB:
576 : 1146 : consensus.BIP34Height = int{height};
577 : 1146 : break;
578 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_DERSIG:
579 : 0 : consensus.BIP66Height = int{height};
580 : 0 : break;
581 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CLTV:
582 : 0 : consensus.BIP65Height = int{height};
583 : 0 : break;
584 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CSV:
585 : 0 : consensus.CSVHeight = int{height};
586 : 0 : break;
587 : : }
588 : : }
589 : :
590 [ - + ]: 2614 : for (const auto& [deployment_pos, version_bits_params] : opts.version_bits_parameters) {
591 : 0 : consensus.vDeployments[deployment_pos].nStartTime = version_bits_params.start_time;
592 : 0 : consensus.vDeployments[deployment_pos].nTimeout = version_bits_params.timeout;
593 : 0 : consensus.vDeployments[deployment_pos].min_activation_height = version_bits_params.min_activation_height;
594 : : }
595 : :
596 [ + - ]: 2614 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
597 [ + - ]: 2614 : consensus.hashGenesisBlock = genesis.GetHash();
598 [ - + ]: 2614 : assert(consensus.hashGenesisBlock == uint256{"0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"});
599 [ - + ]: 2614 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
600 : :
601 [ - + ]: 2614 : vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
602 : 2614 : vSeeds.clear();
603 [ + - ]: 2614 : vSeeds.emplace_back("dummySeed.invalid.");
604 : :
605 : 2614 : fDefaultConsistencyChecks = true;
606 : 2614 : m_is_mockable_chain = true;
607 : :
608 : 2614 : m_assumeutxo_data = {
609 : : { // For use by unit tests
610 : : .height = 110,
611 : 2614 : .hash_serialized = AssumeutxoHash{uint256{"86e9a1205b418b16dde3a18a78c730e30137e28466bda5dbf6b33ab8fc05447c"}},
612 : : .m_chain_tx_count = 111,
613 : : .blockhash = uint256{"135eec25a6fb277884e5824e7aa7d052c4868161c99a5122170b5266f86c273d"},
614 : : },
615 : : {
616 : : // For use by fuzz target src/test/fuzz/utxo_snapshot.cpp
617 : : .height = 200,
618 : 2614 : .hash_serialized = AssumeutxoHash{uint256{"17dcc016d188d16068907cdeb38b75691a118d43053b8cd6a25969419381d13a"}},
619 : : .m_chain_tx_count = 201,
620 : : .blockhash = uint256{"385901ccbd69dff6bbd00065d01fb8a9e464dede7cfe0372443884f9b1dcf6b9"},
621 : : },
622 : : {
623 : : // For use by test/functional/feature_assumeutxo.py and test/functional/tool_bitcoin_chainstate.py
624 : : .height = 299,
625 [ + - ]: 2614 : .hash_serialized = AssumeutxoHash{uint256{"106b2c56233e378a824cf0d5ff2be42ed32c72f1605c9be288d00942908a40ac"}},
626 : : .m_chain_tx_count = 334,
627 : : .blockhash = uint256{"0c552ced4721c249a389eb9b08cb8da261cd46f0e7b5f9d064d48f3113406853"},
628 : : },
629 [ + - ]: 2614 : };
630 : :
631 : 2614 : chainTxData = ChainTxData{
632 : : .nTime = 0,
633 : : .tx_count = 0,
634 : : .dTxRate = 0.001, // Set a non-zero rate to make it testable
635 : : };
636 : :
637 [ + - + - ]: 2614 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
638 [ + - + - ]: 2614 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
639 [ + - + - ]: 2614 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
640 [ + - ]: 2614 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
641 [ + - ]: 2614 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
642 : :
643 [ + - ]: 2614 : bech32_hrp = "bcrt";
644 : :
645 : : // Copied from Testnet4.
646 : 2614 : m_headers_sync_params = HeadersSyncParams{
647 : : .commitment_period = 275,
648 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
649 : : };
650 : 2614 : }
651 : : };
652 : :
653 : 1367 : std::unique_ptr<const CChainParams> CChainParams::SigNet(const SigNetOptions& options)
654 : : {
655 : 1367 : return std::make_unique<const SigNetParams>(options);
656 : : }
657 : :
658 : 2614 : std::unique_ptr<const CChainParams> CChainParams::RegTest(const RegTestOptions& options)
659 : : {
660 : 2614 : return std::make_unique<const CRegTestParams>(options);
661 : : }
662 : :
663 : 1379 : std::unique_ptr<const CChainParams> CChainParams::Main()
664 : : {
665 : 1379 : return std::make_unique<const CMainParams>();
666 : : }
667 : :
668 : 1366 : std::unique_ptr<const CChainParams> CChainParams::TestNet()
669 : : {
670 : 1366 : return std::make_unique<const CTestNetParams>();
671 : : }
672 : :
673 : 1366 : std::unique_ptr<const CChainParams> CChainParams::TestNet4()
674 : : {
675 : 1366 : return std::make_unique<const CTestNet4Params>();
676 : : }
677 : :
678 : 218 : std::vector<int> CChainParams::GetAvailableSnapshotHeights() const
679 : : {
680 : 218 : std::vector<int> heights;
681 [ - + + - ]: 218 : heights.reserve(m_assumeutxo_data.size());
682 : :
683 [ + + ]: 872 : for (const auto& data : m_assumeutxo_data) {
684 [ + - ]: 654 : heights.emplace_back(data.height);
685 : : }
686 : 218 : return heights;
687 : 0 : }
688 : :
689 : 128 : std::optional<ChainType> GetNetworkForMagic(const MessageStartChars& message)
690 : : {
691 : 128 : const auto mainnet_msg = CChainParams::Main()->MessageStart();
692 : 128 : const auto testnet_msg = CChainParams::TestNet()->MessageStart();
693 : 128 : const auto testnet4_msg = CChainParams::TestNet4()->MessageStart();
694 : 128 : const auto regtest_msg = CChainParams::RegTest({})->MessageStart();
695 [ + - ]: 128 : const auto signet_msg = CChainParams::SigNet({})->MessageStart();
696 : :
697 [ + + ]: 128 : if (std::ranges::equal(message, mainnet_msg)) {
698 : 17 : return ChainType::MAIN;
699 [ + + ]: 111 : } else if (std::ranges::equal(message, testnet_msg)) {
700 : 13 : return ChainType::TESTNET;
701 [ + + ]: 98 : } else if (std::ranges::equal(message, testnet4_msg)) {
702 : 13 : return ChainType::TESTNET4;
703 [ + + ]: 85 : } else if (std::ranges::equal(message, regtest_msg)) {
704 : 52 : return ChainType::REGTEST;
705 [ + + ]: 33 : } else if (std::ranges::equal(message, signet_msg)) {
706 : 9 : return ChainType::SIGNET;
707 : : }
708 : 24 : return std::nullopt;
709 [ + - ]: 128 : }
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