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 : 4254 : 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 : 4254 : CMutableTransaction txNew;
44 : 4254 : txNew.version = 1;
45 [ + - ]: 4254 : txNew.vin.resize(1);
46 [ + - ]: 4254 : txNew.vout.resize(1);
47 [ + - + - : 4254 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ - ]
48 : 4254 : txNew.vout[0].nValue = genesisReward;
49 : 4254 : txNew.vout[0].scriptPubKey = genesisOutputScript;
50 : :
51 : 4254 : CBlock genesis;
52 : 4254 : genesis.nTime = nTime;
53 : 4254 : genesis.nBits = nBits;
54 : 4254 : genesis.nNonce = nNonce;
55 : 4254 : genesis.nVersion = nVersion;
56 [ + - + - : 8508 : genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
- + ]
57 : 4254 : genesis.hashPrevBlock.SetNull();
58 [ + - ]: 4254 : genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
59 : 4254 : return genesis;
60 : 4254 : }
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 : 3598 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
74 : : {
75 : 3598 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
76 [ + - ]: 3598 : const CScript genesisOutputScript = CScript() << "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"_hex << OP_CHECKSIG;
77 [ + - ]: 3598 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
78 : 3598 : }
79 : :
80 : : /**
81 : : * Main network on which people trade goods and services.
82 : : */
83 : 0 : class CMainParams : public CChainParams {
84 : : public:
85 : 1372 : CMainParams() {
86 : 1372 : m_chain_type = ChainType::MAIN;
87 : 1372 : consensus.signet_blocks = false;
88 [ - + ]: 1372 : consensus.signet_challenge.clear();
89 : 1372 : consensus.nSubsidyHalvingInterval = 210000;
90 : 1372 : consensus.script_flag_exceptions.emplace( // BIP16 exception
91 [ + - ]: 1372 : uint256{"00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22"}, SCRIPT_VERIFY_NONE);
92 : 1372 : consensus.script_flag_exceptions.emplace( // Taproot exception
93 [ + - ]: 1372 : uint256{"0000000000000000000f14c35b2d841e986ab5441de8c585d5ffe55ea1e395ad"}, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS);
94 : 1372 : consensus.BIP34Height = 227931;
95 : 1372 : consensus.BIP34Hash = uint256{"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"};
96 : 1372 : consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
97 : 1372 : consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
98 : 1372 : consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
99 : 1372 : consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
100 : 1372 : consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
101 : 1372 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
102 : 1372 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
103 : 1372 : consensus.nPowTargetSpacing = 10 * 60;
104 : 1372 : consensus.fPowAllowMinDifficultyBlocks = false;
105 : 1372 : consensus.enforce_BIP94 = false;
106 : 1372 : consensus.fPowNoRetargeting = false;
107 [ + - ]: 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
108 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
109 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
110 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
111 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
112 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
113 : :
114 : : // Deployment of Taproot (BIPs 340-342)
115 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
116 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
117 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
118 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
119 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
120 : 1372 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
121 : :
122 : 1372 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000b1f3b93b65b16d035a82be84"};
123 : 1372 : consensus.defaultAssumeValid = uint256{"00000000000000000001b658dd1120e82e66d2790811f89ede9742ada3ed6d77"}; // 886157
124 : :
125 : : /**
126 : : * The message start string is designed to be unlikely to occur in normal data.
127 : : * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
128 : : * a large 32-bit integer with any alignment.
129 : : */
130 : 1372 : pchMessageStart[0] = 0xf9;
131 : 1372 : pchMessageStart[1] = 0xbe;
132 : 1372 : pchMessageStart[2] = 0xb4;
133 : 1372 : pchMessageStart[3] = 0xd9;
134 : 1372 : nDefaultPort = 8333;
135 : 1372 : nPruneAfterHeight = 100000;
136 : 1372 : m_assumed_blockchain_size = 720;
137 : 1372 : m_assumed_chain_state_size = 14;
138 : :
139 [ + - ]: 1372 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
140 [ + - ]: 1372 : consensus.hashGenesisBlock = genesis.GetHash();
141 [ - + ]: 1372 : assert(consensus.hashGenesisBlock == uint256{"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"});
142 [ - + ]: 1372 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
143 : :
144 : : // Note that of those which support the service bits prefix, most only support a subset of
145 : : // possible options.
146 : : // This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
147 : : // service bits we want, but we should get them updated to support all service bits wanted by any
148 : : // release ASAP to avoid it where possible.
149 [ + - ]: 1372 : vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
150 [ + - ]: 1372 : vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
151 [ + - ]: 1372 : vSeeds.emplace_back("dnsseed.bitcoin.dashjr-list-of-p2p-nodes.us."); // Luke Dashjr
152 [ + - ]: 1372 : vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
153 [ + - ]: 1372 : vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
154 [ + - ]: 1372 : vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
155 [ + - ]: 1372 : vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
156 [ + - ]: 1372 : vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
157 [ + - ]: 1372 : 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
158 : :
159 [ + - + - ]: 1372 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
160 [ + - + - ]: 1372 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
161 [ + - + - : 2744 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
+ - ]
162 [ + - ]: 1372 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
163 [ + - ]: 1372 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
164 : :
165 [ + - ]: 1372 : bech32_hrp = "bc";
166 : :
167 [ + - + - ]: 1372 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
168 : :
169 : 1372 : fDefaultConsistencyChecks = false;
170 : 1372 : m_is_mockable_chain = false;
171 : :
172 : 1372 : m_assumeutxo_data = {
173 : : {
174 : : .height = 840'000,
175 [ + - ]: 1372 : .hash_serialized = AssumeutxoHash{uint256{"a2a5521b1b5ab65f67818e5e8eccabb7171a517f9e2382208f77687310768f96"}},
176 : : .m_chain_tx_count = 991032194,
177 : : .blockhash = consteval_ctor(uint256{"0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5"}),
178 : : },
179 : : {
180 : : .height = 880'000,
181 : 1372 : .hash_serialized = AssumeutxoHash{uint256{"dbd190983eaf433ef7c15f78a278ae42c00ef52e0fd2a54953782175fbadcea9"}},
182 : : .m_chain_tx_count = 1145604538,
183 : : .blockhash = consteval_ctor(uint256{"000000000000000000010b17283c3c400507969a9c2afd1dcf2082ec5cca2880"}),
184 : : }
185 [ + - ]: 1372 : };
186 : :
187 : 1372 : chainTxData = ChainTxData{
188 : : // Data from RPC: getchaintxstats 4096 00000000000000000001b658dd1120e82e66d2790811f89ede9742ada3ed6d77
189 : : .nTime = 1741017141,
190 : : .tx_count = 1161875261,
191 : : .dTxRate = 4.620728156243148,
192 : : };
193 : 1372 : }
194 : : };
195 : :
196 : : /**
197 : : * Testnet (v3): public test network which is reset from time to time.
198 : : */
199 : 0 : class CTestNetParams : public CChainParams {
200 : : public:
201 : 689 : CTestNetParams() {
202 : 689 : m_chain_type = ChainType::TESTNET;
203 : 689 : consensus.signet_blocks = false;
204 [ - + ]: 689 : consensus.signet_challenge.clear();
205 : 689 : consensus.nSubsidyHalvingInterval = 210000;
206 : 689 : consensus.script_flag_exceptions.emplace( // BIP16 exception
207 [ + - ]: 689 : uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
208 : 689 : consensus.BIP34Height = 21111;
209 : 689 : consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
210 : 689 : consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
211 : 689 : consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
212 : 689 : consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
213 : 689 : consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
214 : 689 : consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
215 : 689 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
216 : 689 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
217 : 689 : consensus.nPowTargetSpacing = 10 * 60;
218 : 689 : consensus.fPowAllowMinDifficultyBlocks = true;
219 : 689 : consensus.enforce_BIP94 = false;
220 : 689 : consensus.fPowNoRetargeting = false;
221 [ + - ]: 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
222 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
223 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
224 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
225 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
226 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
227 : :
228 : : // Deployment of Taproot (BIPs 340-342)
229 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
230 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
231 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
232 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
233 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
234 : 689 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
235 : :
236 : 689 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000015f5e0c9f13455b0eb17"};
237 : 689 : consensus.defaultAssumeValid = uint256{"00000000000003fc7967410ba2d0a8a8d50daedc318d43e8baf1a9782c236a57"}; // 3974606
238 : :
239 : 689 : pchMessageStart[0] = 0x0b;
240 : 689 : pchMessageStart[1] = 0x11;
241 : 689 : pchMessageStart[2] = 0x09;
242 : 689 : pchMessageStart[3] = 0x07;
243 : 689 : nDefaultPort = 18333;
244 : 689 : nPruneAfterHeight = 1000;
245 : 689 : m_assumed_blockchain_size = 200;
246 : 689 : m_assumed_chain_state_size = 19;
247 : :
248 [ + - ]: 689 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
249 [ + - ]: 689 : consensus.hashGenesisBlock = genesis.GetHash();
250 [ - + ]: 689 : assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
251 [ - + ]: 689 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
252 : :
253 [ - + ]: 689 : vFixedSeeds.clear();
254 : 689 : vSeeds.clear();
255 : : // nodes with support for servicebits filtering should be at the top
256 [ + - ]: 689 : vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
257 [ + - ]: 689 : vSeeds.emplace_back("seed.tbtc.petertodd.net.");
258 [ + - ]: 689 : vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
259 [ + - ]: 689 : vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
260 [ + - ]: 689 : 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
261 : :
262 [ + - + - ]: 689 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
263 [ + - + - ]: 689 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
264 [ + - + - ]: 689 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
265 [ + - ]: 689 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
266 [ + - ]: 689 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
267 : :
268 [ + - ]: 689 : bech32_hrp = "tb";
269 : :
270 [ + - + - ]: 689 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
271 : :
272 : 689 : fDefaultConsistencyChecks = false;
273 : 689 : m_is_mockable_chain = false;
274 : :
275 : 689 : m_assumeutxo_data = {
276 : : {
277 : : .height = 2'500'000,
278 [ + - ]: 689 : .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}},
279 : : .m_chain_tx_count = 66484552,
280 : : .blockhash = consteval_ctor(uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"}),
281 : : }
282 [ + - ]: 689 : };
283 : :
284 : 689 : chainTxData = ChainTxData{
285 : : // Data from RPC: getchaintxstats 4096 00000000000003fc7967410ba2d0a8a8d50daedc318d43e8baf1a9782c236a57
286 : : .nTime = 1741042082,
287 : : .tx_count = 475477615,
288 : : .dTxRate = 17.15933950357594,
289 : : };
290 : 689 : }
291 : : };
292 : :
293 : : /**
294 : : * Testnet (v4): public test network which is reset from time to time.
295 : : */
296 : 0 : class CTestNet4Params : public CChainParams {
297 : : public:
298 : 656 : CTestNet4Params() {
299 : 656 : m_chain_type = ChainType::TESTNET4;
300 : 656 : consensus.signet_blocks = false;
301 [ - + ]: 656 : consensus.signet_challenge.clear();
302 : 656 : consensus.nSubsidyHalvingInterval = 210000;
303 : 656 : consensus.BIP34Height = 1;
304 : 656 : consensus.BIP34Hash = uint256{};
305 : 656 : consensus.BIP65Height = 1;
306 : 656 : consensus.BIP66Height = 1;
307 : 656 : consensus.CSVHeight = 1;
308 : 656 : consensus.SegwitHeight = 1;
309 : 656 : consensus.MinBIP9WarningHeight = 0;
310 : 656 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
311 : 656 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
312 : 656 : consensus.nPowTargetSpacing = 10 * 60;
313 : 656 : consensus.fPowAllowMinDifficultyBlocks = true;
314 : 656 : consensus.enforce_BIP94 = true;
315 : 656 : consensus.fPowNoRetargeting = false;
316 : :
317 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
318 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
319 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
320 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
321 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
322 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
323 : :
324 : : // Deployment of Taproot (BIPs 340-342)
325 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
326 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
327 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
328 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
329 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
330 : 656 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
331 : :
332 : 656 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000001d6dce8651b6094e4c1"};
333 : 656 : consensus.defaultAssumeValid = uint256{"0000000000003ed4f08dbdf6f7d6b271a6bcffce25675cb40aa9fa43179a89f3"}; // 72600
334 : :
335 : 656 : pchMessageStart[0] = 0x1c;
336 : 656 : pchMessageStart[1] = 0x16;
337 : 656 : pchMessageStart[2] = 0x3f;
338 : 656 : pchMessageStart[3] = 0x28;
339 : 656 : nDefaultPort = 48333;
340 : 656 : nPruneAfterHeight = 1000;
341 : 656 : m_assumed_blockchain_size = 11;
342 : 656 : m_assumed_chain_state_size = 1;
343 : :
344 : 656 : const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e";
345 [ + - ]: 656 : const CScript testnet4_genesis_script = CScript() << "000000000000000000000000000000000000000000000000000000000000000000"_hex << OP_CHECKSIG;
346 : 1312 : genesis = CreateGenesisBlock(testnet4_genesis_msg,
347 : : testnet4_genesis_script,
348 : : 1714777860,
349 : : 393743547,
350 : : 0x1d00ffff,
351 : : 1,
352 [ + - ]: 656 : 50 * COIN);
353 [ + - ]: 656 : consensus.hashGenesisBlock = genesis.GetHash();
354 [ - + ]: 656 : assert(consensus.hashGenesisBlock == uint256{"00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"});
355 [ - + ]: 656 : assert(genesis.hashMerkleRoot == uint256{"7aa0a7ae1e223414cb807e40cd57e667b718e42aaf9306db9102fe28912b7b4e"});
356 : :
357 [ - + ]: 656 : vFixedSeeds.clear();
358 : 656 : vSeeds.clear();
359 : : // nodes with support for servicebits filtering should be at the top
360 [ + - ]: 656 : vSeeds.emplace_back("seed.testnet4.bitcoin.sprovoost.nl."); // Sjors Provoost
361 [ + - ]: 656 : vSeeds.emplace_back("seed.testnet4.wiz.biz."); // Jason Maurice
362 : :
363 [ + - + - ]: 656 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
364 [ + - + - ]: 656 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
365 [ + - + - ]: 656 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
366 [ + - ]: 656 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
367 [ + - ]: 656 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
368 : :
369 [ + - ]: 656 : bech32_hrp = "tb";
370 : :
371 [ + - + - ]: 656 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_testnet4), std::end(chainparams_seed_testnet4));
372 : :
373 : 656 : fDefaultConsistencyChecks = false;
374 : 656 : m_is_mockable_chain = false;
375 : :
376 : 656 : m_assumeutxo_data = {
377 : : {}
378 [ + - ]: 656 : };
379 : :
380 : 656 : chainTxData = ChainTxData{
381 : : // Data from RPC: getchaintxstats 4096 0000000000003ed4f08dbdf6f7d6b271a6bcffce25675cb40aa9fa43179a89f3
382 : : .nTime = 1741070246,
383 : : .tx_count = 7653966,
384 : : .dTxRate = 1.239174414591965,
385 : : };
386 : 656 : }
387 : : };
388 : :
389 : : /**
390 : : * Signet: test network with an additional consensus parameter (see BIP325).
391 : : */
392 : 0 : class SigNetParams : public CChainParams {
393 : : public:
394 : 726 : explicit SigNetParams(const SigNetOptions& options)
395 : 726 : {
396 : 726 : std::vector<uint8_t> bin;
397 [ - + ]: 726 : vFixedSeeds.clear();
398 : 726 : vSeeds.clear();
399 : :
400 [ + + ]: 726 : if (!options.challenge) {
401 [ + - ]: 1450 : bin = "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"_hex_v_u8;
402 [ + - + - ]: 725 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_signet), std::end(chainparams_seed_signet));
403 [ + - ]: 725 : vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
404 [ + - ]: 725 : 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
405 : :
406 : 725 : consensus.nMinimumChainWork = uint256{"000000000000000000000000000000000000000000000000000002b517f3d1a1"};
407 : 725 : consensus.defaultAssumeValid = uint256{"000000895a110f46e59eb82bbc5bfb67fa314656009c295509c21b4999f5180a"}; // 237722
408 : 725 : m_assumed_blockchain_size = 9;
409 : 725 : m_assumed_chain_state_size = 1;
410 : 725 : chainTxData = ChainTxData{
411 : : // Data from RPC: getchaintxstats 4096 000000895a110f46e59eb82bbc5bfb67fa314656009c295509c21b4999f5180a
412 : : .nTime = 1741019645,
413 : : .tx_count = 16540736,
414 : : .dTxRate = 1.064918879911595,
415 : : };
416 : : } else {
417 [ + - ]: 1 : bin = *options.challenge;
418 [ + - ]: 1 : consensus.nMinimumChainWork = uint256{};
419 : 1 : consensus.defaultAssumeValid = uint256{};
420 : 1 : m_assumed_blockchain_size = 0;
421 : 1 : m_assumed_chain_state_size = 0;
422 : 1 : chainTxData = ChainTxData{
423 : : 0,
424 : : 0,
425 : : 0,
426 : : };
427 [ + - + - ]: 2 : LogPrintf("Signet with challenge %s\n", HexStr(bin));
428 : : }
429 : :
430 [ - + ]: 726 : if (options.seeds) {
431 [ # # ]: 0 : vSeeds = *options.seeds;
432 : : }
433 : :
434 : 726 : m_chain_type = ChainType::SIGNET;
435 : 726 : consensus.signet_blocks = true;
436 [ + - ]: 726 : consensus.signet_challenge.assign(bin.begin(), bin.end());
437 : 726 : consensus.nSubsidyHalvingInterval = 210000;
438 : 726 : consensus.BIP34Height = 1;
439 [ + - ]: 726 : consensus.BIP34Hash = uint256{};
440 : 726 : consensus.BIP65Height = 1;
441 : 726 : consensus.BIP66Height = 1;
442 : 726 : consensus.CSVHeight = 1;
443 : 726 : consensus.SegwitHeight = 1;
444 : 726 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
445 : 726 : consensus.nPowTargetSpacing = 10 * 60;
446 : 726 : consensus.fPowAllowMinDifficultyBlocks = false;
447 : 726 : consensus.enforce_BIP94 = false;
448 : 726 : consensus.fPowNoRetargeting = false;
449 : 726 : consensus.MinBIP9WarningHeight = 0;
450 : 726 : consensus.powLimit = uint256{"00000377ae000000000000000000000000000000000000000000000000000000"};
451 [ + - ]: 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
452 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
453 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
454 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
455 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
456 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
457 : :
458 : : // Activation of Taproot (BIPs 340-342)
459 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
460 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
461 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
462 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
463 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
464 : 726 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
465 : :
466 : : // message start is defined as the first 4 bytes of the sha256d of the block script
467 [ + - ]: 726 : HashWriter h{};
468 [ + - ]: 726 : h << consensus.signet_challenge;
469 [ + - ]: 726 : uint256 hash = h.GetHash();
470 : 726 : std::copy_n(hash.begin(), 4, pchMessageStart.begin());
471 : :
472 : 726 : nDefaultPort = 38333;
473 : 726 : nPruneAfterHeight = 1000;
474 : :
475 [ + - ]: 726 : genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
476 [ + - ]: 726 : consensus.hashGenesisBlock = genesis.GetHash();
477 [ - + ]: 726 : assert(consensus.hashGenesisBlock == uint256{"00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"});
478 [ - + ]: 726 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
479 : :
480 : 726 : m_assumeutxo_data = {
481 : : {
482 : : .height = 160'000,
483 [ + - ]: 726 : .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}},
484 : : .m_chain_tx_count = 2289496,
485 : : .blockhash = consteval_ctor(uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"}),
486 : : }
487 [ + - ]: 726 : };
488 : :
489 [ + - + - ]: 726 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
490 [ + - + - ]: 726 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
491 [ + - + - ]: 726 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
492 [ + - ]: 726 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
493 [ + - ]: 726 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
494 : :
495 [ + - ]: 726 : bech32_hrp = "tb";
496 : :
497 : 726 : fDefaultConsistencyChecks = false;
498 : 726 : m_is_mockable_chain = false;
499 : 726 : }
500 : : };
501 : :
502 : : /**
503 : : * Regression test: intended for private networks only. Has minimal difficulty to ensure that
504 : : * blocks can be found instantly.
505 : : */
506 : 0 : class CRegTestParams : public CChainParams
507 : : {
508 : : public:
509 : 811 : explicit CRegTestParams(const RegTestOptions& opts)
510 : 811 : {
511 : 811 : m_chain_type = ChainType::REGTEST;
512 : 811 : consensus.signet_blocks = false;
513 [ - + ]: 811 : consensus.signet_challenge.clear();
514 : 811 : consensus.nSubsidyHalvingInterval = 150;
515 : 811 : consensus.BIP34Height = 1; // Always active unless overridden
516 [ + - ]: 811 : consensus.BIP34Hash = uint256();
517 : 811 : consensus.BIP65Height = 1; // Always active unless overridden
518 : 811 : consensus.BIP66Height = 1; // Always active unless overridden
519 : 811 : consensus.CSVHeight = 1; // Always active unless overridden
520 : 811 : consensus.SegwitHeight = 0; // Always active unless overridden
521 : 811 : consensus.MinBIP9WarningHeight = 0;
522 : 811 : consensus.powLimit = uint256{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
523 : 811 : consensus.nPowTargetTimespan = 24 * 60 * 60; // one day
524 : 811 : consensus.nPowTargetSpacing = 10 * 60;
525 : 811 : consensus.fPowAllowMinDifficultyBlocks = true;
526 : 811 : consensus.enforce_BIP94 = opts.enforce_bip94;
527 : 811 : consensus.fPowNoRetargeting = true;
528 : :
529 [ + - ]: 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
530 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
531 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
532 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
533 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 108; // 75%
534 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 144; // Faster than normal for regtest (144 instead of 2016)
535 : :
536 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
537 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
538 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
539 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
540 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 108; // 75%
541 : 811 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 144;
542 : :
543 : 811 : consensus.nMinimumChainWork = uint256{};
544 : 811 : consensus.defaultAssumeValid = uint256{};
545 : :
546 : 811 : pchMessageStart[0] = 0xfa;
547 : 811 : pchMessageStart[1] = 0xbf;
548 : 811 : pchMessageStart[2] = 0xb5;
549 : 811 : pchMessageStart[3] = 0xda;
550 : 811 : nDefaultPort = 18444;
551 [ + - ]: 811 : nPruneAfterHeight = opts.fastprune ? 100 : 1000;
552 : 811 : m_assumed_blockchain_size = 0;
553 : 811 : m_assumed_chain_state_size = 0;
554 : :
555 [ + + - - : 814 : for (const auto& [dep, height] : opts.activation_heights) {
+ - - - ]
556 [ - - + - : 3 : switch (dep) {
- - ]
557 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_SEGWIT:
558 : 0 : consensus.SegwitHeight = int{height};
559 : 0 : break;
560 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB:
561 : 0 : consensus.BIP34Height = int{height};
562 : 0 : break;
563 : 3 : case Consensus::BuriedDeployment::DEPLOYMENT_DERSIG:
564 : 3 : consensus.BIP66Height = int{height};
565 : 3 : break;
566 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CLTV:
567 : 0 : consensus.BIP65Height = int{height};
568 : 0 : break;
569 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CSV:
570 : 0 : consensus.CSVHeight = int{height};
571 : 0 : break;
572 : : }
573 : : }
574 : :
575 [ + + ]: 813 : for (const auto& [deployment_pos, version_bits_params] : opts.version_bits_parameters) {
576 : 2 : consensus.vDeployments[deployment_pos].nStartTime = version_bits_params.start_time;
577 : 2 : consensus.vDeployments[deployment_pos].nTimeout = version_bits_params.timeout;
578 : 2 : consensus.vDeployments[deployment_pos].min_activation_height = version_bits_params.min_activation_height;
579 : : }
580 : :
581 [ + - ]: 811 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
582 [ + - ]: 811 : consensus.hashGenesisBlock = genesis.GetHash();
583 [ - + ]: 811 : assert(consensus.hashGenesisBlock == uint256{"0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"});
584 [ - + ]: 811 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
585 : :
586 [ - + ]: 811 : vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
587 : 811 : vSeeds.clear();
588 [ + - ]: 811 : vSeeds.emplace_back("dummySeed.invalid.");
589 : :
590 : 811 : fDefaultConsistencyChecks = true;
591 : 811 : m_is_mockable_chain = true;
592 : :
593 : 811 : m_assumeutxo_data = {
594 : : { // For use by unit tests
595 : : .height = 110,
596 [ + - ]: 811 : .hash_serialized = AssumeutxoHash{uint256{"6657b736d4fe4db0cbc796789e812d5dba7f5c143764b1b6905612f1830609d1"}},
597 : : .m_chain_tx_count = 111,
598 : : .blockhash = consteval_ctor(uint256{"696e92821f65549c7ee134edceeeeaaa4105647a3c4fd9f298c0aec0ab50425c"}),
599 : : },
600 : : {
601 : : // For use by fuzz target src/test/fuzz/utxo_snapshot.cpp
602 : : .height = 200,
603 : 811 : .hash_serialized = AssumeutxoHash{uint256{"7e3b7780fbd2fa479a01f66950dc8f728dc1b11f03d06d5bf223168520df3a48"}},
604 : : .m_chain_tx_count = 201,
605 : : .blockhash = consteval_ctor(uint256{"5e93653318f294fb5aa339d00bbf8cf1c3515488ad99412c37608b139ea63b27"}),
606 : : },
607 : : {
608 : : // For use by test/functional/feature_assumeutxo.py
609 : : .height = 299,
610 : 811 : .hash_serialized = AssumeutxoHash{uint256{"a4bf3407ccb2cc0145c49ebba8fa91199f8a3903daf0883875941497d2493c27"}},
611 : : .m_chain_tx_count = 334,
612 : : .blockhash = consteval_ctor(uint256{"3bb7ce5eba0be48939b7a521ac1ba9316afee2c7bada3a0cca24188e6d7d96c0"}),
613 : : },
614 [ + - ]: 811 : };
615 : :
616 : 811 : chainTxData = ChainTxData{
617 : : 0,
618 : : 0,
619 : : 0
620 : : };
621 : :
622 [ + - + - ]: 811 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
623 [ + - + - ]: 811 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
624 [ + - + - ]: 811 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
625 [ + - ]: 811 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
626 [ + - ]: 811 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
627 : :
628 [ + - ]: 811 : bech32_hrp = "bcrt";
629 : 811 : }
630 : : };
631 : :
632 : 726 : std::unique_ptr<const CChainParams> CChainParams::SigNet(const SigNetOptions& options)
633 : : {
634 : 726 : return std::make_unique<const SigNetParams>(options);
635 : : }
636 : :
637 : 811 : std::unique_ptr<const CChainParams> CChainParams::RegTest(const RegTestOptions& options)
638 : : {
639 : 811 : return std::make_unique<const CRegTestParams>(options);
640 : : }
641 : :
642 : 1372 : std::unique_ptr<const CChainParams> CChainParams::Main()
643 : : {
644 : 1372 : return std::make_unique<const CMainParams>();
645 : : }
646 : :
647 : 689 : std::unique_ptr<const CChainParams> CChainParams::TestNet()
648 : : {
649 : 689 : return std::make_unique<const CTestNetParams>();
650 : : }
651 : :
652 : 656 : std::unique_ptr<const CChainParams> CChainParams::TestNet4()
653 : : {
654 : 656 : return std::make_unique<const CTestNet4Params>();
655 : : }
656 : :
657 : 12 : std::vector<int> CChainParams::GetAvailableSnapshotHeights() const
658 : : {
659 : 12 : std::vector<int> heights;
660 [ + - ]: 12 : heights.reserve(m_assumeutxo_data.size());
661 : :
662 [ + + ]: 48 : for (const auto& data : m_assumeutxo_data) {
663 [ + - ]: 36 : heights.emplace_back(data.height);
664 : : }
665 : 12 : return heights;
666 : 0 : }
667 : :
668 : 0 : std::optional<ChainType> GetNetworkForMagic(const MessageStartChars& message)
669 : : {
670 : 0 : const auto mainnet_msg = CChainParams::Main()->MessageStart();
671 : 0 : const auto testnet_msg = CChainParams::TestNet()->MessageStart();
672 : 0 : const auto testnet4_msg = CChainParams::TestNet4()->MessageStart();
673 : 0 : const auto regtest_msg = CChainParams::RegTest({})->MessageStart();
674 : 0 : const auto signet_msg = CChainParams::SigNet({})->MessageStart();
675 : :
676 [ # # ]: 0 : if (std::ranges::equal(message, mainnet_msg)) {
677 : 0 : return ChainType::MAIN;
678 [ # # ]: 0 : } else if (std::ranges::equal(message, testnet_msg)) {
679 : 0 : return ChainType::TESTNET;
680 [ # # ]: 0 : } else if (std::ranges::equal(message, testnet4_msg)) {
681 : 0 : return ChainType::TESTNET4;
682 [ # # ]: 0 : } else if (std::ranges::equal(message, regtest_msg)) {
683 : 0 : return ChainType::REGTEST;
684 [ # # ]: 0 : } else if (std::ranges::equal(message, signet_msg)) {
685 : 0 : return ChainType::SIGNET;
686 : : }
687 : 0 : return std::nullopt;
688 [ # # # # ]: 0 : }
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