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 <uint256.h>
20 : : #include <util/chaintype.h>
21 : : #include <util/log.h>
22 : : #include <util/strencodings.h>
23 : :
24 : : #include <algorithm>
25 : : #include <array>
26 : : #include <cassert>
27 : : #include <cstdint>
28 : : #include <cstring>
29 : : #include <iterator>
30 : : #include <map>
31 : : #include <span>
32 : : #include <utility>
33 : :
34 : : using namespace util::hex_literals;
35 : :
36 : 11802 : static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
37 : : {
38 : 11802 : CMutableTransaction txNew;
39 : 11802 : txNew.version = 1;
40 [ + - ]: 11802 : txNew.vin.resize(1);
41 [ + - ]: 11802 : txNew.vout.resize(1);
42 [ + - + - : 23604 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ - ]
43 : 11802 : txNew.vout[0].nValue = genesisReward;
44 : 11802 : txNew.vout[0].scriptPubKey = genesisOutputScript;
45 : :
46 : 11802 : CBlock genesis;
47 : 11802 : genesis.nTime = nTime;
48 : 11802 : genesis.nBits = nBits;
49 : 11802 : genesis.nNonce = nNonce;
50 : 11802 : genesis.nVersion = nVersion;
51 [ + - + - : 23604 : genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
- + ]
52 : 11802 : genesis.hashPrevBlock.SetNull();
53 [ + - ]: 11802 : genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
54 : 11802 : return genesis;
55 : 11802 : }
56 : :
57 : : /**
58 : : * Build the genesis block. Note that the output of its generation
59 : : * transaction cannot be spent since it did not originally exist in the
60 : : * database.
61 : : *
62 : : * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
63 : : * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
64 : : * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
65 : : * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
66 : : * vMerkleTree: 4a5e1e
67 : : */
68 : 9890 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
69 : : {
70 : 9890 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
71 [ + - ]: 9890 : const CScript genesisOutputScript = CScript() << "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"_hex << OP_CHECKSIG;
72 [ + - ]: 9890 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
73 : 9890 : }
74 : :
75 : : /**
76 : : * Main network on which people trade goods and services.
77 : : */
78 : 0 : class CMainParams : public CChainParams {
79 : : public:
80 : 2676 : CMainParams() {
81 : 2676 : m_chain_type = ChainType::MAIN;
82 : 2676 : consensus.signet_blocks = false;
83 [ - + ]: 2676 : consensus.signet_challenge.clear();
84 : 2676 : consensus.nSubsidyHalvingInterval = 210000;
85 : 2676 : consensus.script_flag_exceptions.emplace( // BIP16 exception
86 [ + - ]: 2676 : uint256{"00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22"}, SCRIPT_VERIFY_NONE);
87 : 2676 : consensus.script_flag_exceptions.emplace( // Taproot exception
88 [ + - ]: 2676 : uint256{"0000000000000000000f14c35b2d841e986ab5441de8c585d5ffe55ea1e395ad"}, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS);
89 : 2676 : consensus.BIP34Height = 227931;
90 : 2676 : consensus.BIP34Hash = uint256{"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"};
91 : 2676 : consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
92 : 2676 : consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
93 : 2676 : consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
94 : 2676 : consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
95 : 2676 : consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
96 : 2676 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
97 : 2676 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
98 : 2676 : consensus.nPowTargetSpacing = 10 * 60;
99 : 2676 : consensus.fPowAllowMinDifficultyBlocks = false;
100 : 2676 : consensus.enforce_BIP94 = false;
101 : 2676 : consensus.fPowNoRetargeting = false;
102 [ + - ]: 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
103 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
104 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
105 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
106 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
107 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
108 : :
109 : : // Deployment of Taproot (BIPs 340-342)
110 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
111 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
112 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
113 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
114 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
115 : 2676 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
116 : :
117 : 2676 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000001128750f82f4c366153a3a030"};
118 : 2676 : consensus.defaultAssumeValid = uint256{"00000000000000000000ccebd6d74d9194d8dcdc1d177c478e094bfad51ba5ac"}; // 938343
119 : :
120 : : /**
121 : : * The message start string is designed to be unlikely to occur in normal data.
122 : : * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
123 : : * a large 32-bit integer with any alignment.
124 : : */
125 : 2676 : pchMessageStart[0] = 0xf9;
126 : 2676 : pchMessageStart[1] = 0xbe;
127 : 2676 : pchMessageStart[2] = 0xb4;
128 : 2676 : pchMessageStart[3] = 0xd9;
129 : 2676 : nDefaultPort = 8333;
130 : 2676 : nPruneAfterHeight = 100000;
131 : 2676 : m_assumed_blockchain_size = 856;
132 : 2676 : m_assumed_chain_state_size = 14;
133 : :
134 [ + - ]: 2676 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
135 [ + - ]: 2676 : consensus.hashGenesisBlock = genesis.GetHash();
136 [ - + ]: 2676 : assert(consensus.hashGenesisBlock == uint256{"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"});
137 [ - + ]: 2676 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
138 : :
139 : : // Note that of those which support the service bits prefix, most only support a subset of
140 : : // possible options.
141 : : // This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
142 : : // service bits we want, but we should get them updated to support all service bits wanted by any
143 : : // release ASAP to avoid it where possible.
144 [ + - ]: 2676 : vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
145 [ + - ]: 2676 : vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
146 [ + - ]: 2676 : vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
147 [ + - ]: 2676 : vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
148 [ + - ]: 2676 : vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
149 [ + - ]: 2676 : vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
150 [ + - ]: 2676 : vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
151 [ + - ]: 2676 : 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
152 : :
153 [ + - + - ]: 2676 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
154 [ + - + - ]: 2676 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
155 [ + - + - ]: 2676 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
156 [ + - ]: 2676 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
157 [ + - ]: 2676 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
158 : :
159 [ + - ]: 2676 : bech32_hrp = "bc";
160 : :
161 [ + - + - ]: 2676 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
162 : :
163 : 2676 : fDefaultConsistencyChecks = false;
164 : 2676 : m_is_mockable_chain = false;
165 : :
166 : 2676 : m_assumeutxo_data = {
167 : : {
168 : : .height = 840'000,
169 : 2676 : .hash_serialized = AssumeutxoHash{uint256{"a2a5521b1b5ab65f67818e5e8eccabb7171a517f9e2382208f77687310768f96"}},
170 : : .m_chain_tx_count = 991032194,
171 : : .blockhash = uint256{"0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5"},
172 : : },
173 : : {
174 : : .height = 880'000,
175 : 2676 : .hash_serialized = AssumeutxoHash{uint256{"dbd190983eaf433ef7c15f78a278ae42c00ef52e0fd2a54953782175fbadcea9"}},
176 : : .m_chain_tx_count = 1145604538,
177 : : .blockhash = uint256{"000000000000000000010b17283c3c400507969a9c2afd1dcf2082ec5cca2880"},
178 : : },
179 : : {
180 : : .height = 910'000,
181 : 2676 : .hash_serialized = AssumeutxoHash{uint256{"4daf8a17b4902498c5787966a2b51c613acdab5df5db73f196fa59a4da2f1568"}},
182 : : .m_chain_tx_count = 1226586151,
183 : : .blockhash = uint256{"0000000000000000000108970acb9522ffd516eae17acddcb1bd16469194a821"},
184 : : },
185 : : {
186 : : .height = 935'000,
187 [ + - ]: 2676 : .hash_serialized = AssumeutxoHash{uint256{"e4b90ef9eae834f56c4b64d2d50143cee10ad87994c614d7d04125e2a6025050"}},
188 : : .m_chain_tx_count = 1305397408,
189 : : .blockhash = uint256{"0000000000000000000147034958af1652b2b91bba607beacc5e72a56f0fb5ee"},
190 : : }
191 [ + - ]: 2676 : };
192 : :
193 : 2676 : chainTxData = ChainTxData{
194 : : // Data from RPC: getchaintxstats 4096 00000000000000000000ccebd6d74d9194d8dcdc1d177c478e094bfad51ba5ac
195 : : .nTime = 1772055173,
196 : : .tx_count = 1315805869,
197 : : .dTxRate = 5.40111006496122,
198 : : };
199 : :
200 : : // Generated by headerssync-params.py on 2026-02-25.
201 : 2676 : m_headers_sync_params = HeadersSyncParams{
202 : : .commitment_period = 641,
203 : : .redownload_buffer_size = 15218, // 15218/641 = ~23.7 commitments
204 : : };
205 : 2676 : }
206 : : };
207 : :
208 : : /**
209 : : * Testnet (v3): public test network which is reset from time to time.
210 : : */
211 : 0 : class CTestNetParams : public CChainParams {
212 : : public:
213 : 1945 : CTestNetParams() {
214 : 1945 : m_chain_type = ChainType::TESTNET;
215 : 1945 : consensus.signet_blocks = false;
216 [ - + ]: 1945 : consensus.signet_challenge.clear();
217 : 1945 : consensus.nSubsidyHalvingInterval = 210000;
218 : 1945 : consensus.script_flag_exceptions.emplace( // BIP16 exception
219 [ + - ]: 1945 : uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
220 : 1945 : consensus.BIP34Height = 21111;
221 : 1945 : consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
222 : 1945 : consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
223 : 1945 : consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
224 : 1945 : consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
225 : 1945 : consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
226 : 1945 : consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
227 : 1945 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
228 : 1945 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
229 : 1945 : consensus.nPowTargetSpacing = 10 * 60;
230 : 1945 : consensus.fPowAllowMinDifficultyBlocks = true;
231 : 1945 : consensus.enforce_BIP94 = false;
232 : 1945 : consensus.fPowNoRetargeting = false;
233 [ + - ]: 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
234 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
235 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
236 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
237 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
238 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
239 : :
240 : : // Deployment of Taproot (BIPs 340-342)
241 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
242 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
243 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
244 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
245 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
246 : 1945 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
247 : :
248 : 1945 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000017dde1c649f3708d14b6"};
249 : 1945 : consensus.defaultAssumeValid = uint256{"000000007a61e4230b28ac5cb6b5e5a0130de37ac1faf2f8987d2fa6505b67f4"}; // 4842348
250 : :
251 : 1945 : pchMessageStart[0] = 0x0b;
252 : 1945 : pchMessageStart[1] = 0x11;
253 : 1945 : pchMessageStart[2] = 0x09;
254 : 1945 : pchMessageStart[3] = 0x07;
255 : 1945 : nDefaultPort = 18333;
256 : 1945 : nPruneAfterHeight = 1000;
257 : 1945 : m_assumed_blockchain_size = 245;
258 : 1945 : m_assumed_chain_state_size = 19;
259 : :
260 [ + - ]: 1945 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
261 [ + - ]: 1945 : consensus.hashGenesisBlock = genesis.GetHash();
262 [ - + ]: 1945 : assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
263 [ - + ]: 1945 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
264 : :
265 [ - + ]: 1945 : vFixedSeeds.clear();
266 : 1945 : vSeeds.clear();
267 : : // nodes with support for servicebits filtering should be at the top
268 [ + - ]: 1945 : vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
269 [ + - ]: 1945 : vSeeds.emplace_back("seed.tbtc.petertodd.net.");
270 [ + - ]: 1945 : vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
271 [ + - ]: 1945 : vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
272 [ + - ]: 1945 : 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
273 : :
274 [ + - + - ]: 1945 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
275 [ + - + - ]: 1945 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
276 [ + - + - ]: 1945 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
277 [ + - ]: 1945 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
278 [ + - ]: 1945 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
279 : :
280 [ + - ]: 1945 : bech32_hrp = "tb";
281 : :
282 [ + - + - ]: 1945 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
283 : :
284 : 1945 : fDefaultConsistencyChecks = false;
285 : 1945 : m_is_mockable_chain = false;
286 : :
287 : 1945 : m_assumeutxo_data = {
288 : : {
289 : : .height = 2'500'000,
290 : 1945 : .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}},
291 : : .m_chain_tx_count = 66484552,
292 : : .blockhash = uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"},
293 : : },
294 : : {
295 : : .height = 4'840'000,
296 [ + - ]: 1945 : .hash_serialized = AssumeutxoHash{uint256{"ce6bb677bb2ee9789c4a1c9d73e6683c53fc20e8fdbedbdaaf468982a0c8db2a"}},
297 : : .m_chain_tx_count = 536078574,
298 : : .blockhash = uint256{"00000000000000f4971a7fb37fbdff89315b69a2e1920c467654a382f0d64786"},
299 : : }
300 [ + - ]: 1945 : };
301 : :
302 : 1945 : chainTxData = ChainTxData{
303 : : // Data from RPC: getchaintxstats 4096 000000007a61e4230b28ac5cb6b5e5a0130de37ac1faf2f8987d2fa6505b67f4
304 : : .nTime = 1772051651,
305 : : .tx_count = 536108416,
306 : : .dTxRate = 0.02691479016257117,
307 : : };
308 : :
309 : : // Generated by headerssync-params.py on 2026-02-25.
310 : 1945 : m_headers_sync_params = HeadersSyncParams{
311 : : .commitment_period = 673,
312 : : .redownload_buffer_size = 14460, // 14460/673 = ~21.5 commitments
313 : : };
314 : 1945 : }
315 : : };
316 : :
317 : : /**
318 : : * Testnet (v4): public test network which is reset from time to time.
319 : : */
320 : 0 : class CTestNet4Params : public CChainParams {
321 : : public:
322 : 1912 : CTestNet4Params() {
323 : 1912 : m_chain_type = ChainType::TESTNET4;
324 : 1912 : consensus.signet_blocks = false;
325 [ - + ]: 1912 : consensus.signet_challenge.clear();
326 : 1912 : consensus.nSubsidyHalvingInterval = 210000;
327 : 1912 : consensus.BIP34Height = 1;
328 : 1912 : consensus.BIP34Hash = uint256{};
329 : 1912 : consensus.BIP65Height = 1;
330 : 1912 : consensus.BIP66Height = 1;
331 : 1912 : consensus.CSVHeight = 1;
332 : 1912 : consensus.SegwitHeight = 1;
333 : 1912 : consensus.MinBIP9WarningHeight = 0;
334 : 1912 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
335 : 1912 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
336 : 1912 : consensus.nPowTargetSpacing = 10 * 60;
337 : 1912 : consensus.fPowAllowMinDifficultyBlocks = true;
338 : 1912 : consensus.enforce_BIP94 = true;
339 : 1912 : consensus.fPowNoRetargeting = false;
340 : :
341 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
342 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
343 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
344 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
345 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
346 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
347 : :
348 : : // Deployment of Taproot (BIPs 340-342)
349 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
350 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
351 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
352 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
353 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
354 : 1912 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
355 : :
356 : 1912 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000009a0fe15d0177d086304"};
357 : 1912 : consensus.defaultAssumeValid = uint256{"0000000002368b1e4ee27e2e85676ae6f9f9e69579b29093e9a82c170bf7cf8a"}; // 123613
358 : :
359 : 1912 : pchMessageStart[0] = 0x1c;
360 : 1912 : pchMessageStart[1] = 0x16;
361 : 1912 : pchMessageStart[2] = 0x3f;
362 : 1912 : pchMessageStart[3] = 0x28;
363 : 1912 : nDefaultPort = 48333;
364 : 1912 : nPruneAfterHeight = 1000;
365 : 1912 : m_assumed_blockchain_size = 31;
366 : 1912 : m_assumed_chain_state_size = 2;
367 : :
368 : 1912 : const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e";
369 [ + - ]: 1912 : const CScript testnet4_genesis_script = CScript() << "000000000000000000000000000000000000000000000000000000000000000000"_hex << OP_CHECKSIG;
370 : 3824 : genesis = CreateGenesisBlock(testnet4_genesis_msg,
371 : : testnet4_genesis_script,
372 : : 1714777860,
373 : : 393743547,
374 : : 0x1d00ffff,
375 : : 1,
376 [ + - ]: 1912 : 50 * COIN);
377 [ + - ]: 1912 : consensus.hashGenesisBlock = genesis.GetHash();
378 [ - + ]: 1912 : assert(consensus.hashGenesisBlock == uint256{"00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"});
379 [ - + ]: 1912 : assert(genesis.hashMerkleRoot == uint256{"7aa0a7ae1e223414cb807e40cd57e667b718e42aaf9306db9102fe28912b7b4e"});
380 : :
381 [ - + ]: 1912 : vFixedSeeds.clear();
382 : 1912 : vSeeds.clear();
383 : : // nodes with support for servicebits filtering should be at the top
384 [ + - ]: 1912 : vSeeds.emplace_back("seed.testnet4.bitcoin.sprovoost.nl."); // Sjors Provoost
385 [ + - ]: 1912 : vSeeds.emplace_back("seed.testnet4.wiz.biz."); // Jason Maurice
386 : :
387 [ + - + - ]: 1912 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
388 [ + - + - ]: 1912 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
389 [ + - + - ]: 1912 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
390 [ + - ]: 1912 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
391 [ + - ]: 1912 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
392 : :
393 [ + - ]: 1912 : bech32_hrp = "tb";
394 : :
395 [ + - + - ]: 1912 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_testnet4), std::end(chainparams_seed_testnet4));
396 : :
397 : 1912 : fDefaultConsistencyChecks = false;
398 : 1912 : m_is_mockable_chain = false;
399 : :
400 : 1912 : m_assumeutxo_data = {
401 : : {
402 : : .height = 90'000,
403 : 1912 : .hash_serialized = AssumeutxoHash{uint256{"784fb5e98241de66fdd429f4392155c9e7db5c017148e66e8fdbc95746f8b9b5"}},
404 : : .m_chain_tx_count = 11347043,
405 : : .blockhash = uint256{"0000000002ebe8bcda020e0dd6ccfbdfac531d2f6a81457191b99fc2df2dbe3b"},
406 : : },
407 : : {
408 : : .height = 120'000,
409 [ + - ]: 1912 : .hash_serialized = AssumeutxoHash{uint256{"10b05d05ad468d0971162e1b222a4aa66caca89da2bb2a93f8f37fb29c4794b0"}},
410 : : .m_chain_tx_count = 14141057,
411 : : .blockhash = uint256{"000000000bd2317e51b3c5794981c35ba894ce27d3e772d5c39ecd9cbce01dc8"},
412 : : }
413 [ + - ]: 1912 : };
414 : :
415 : 1912 : chainTxData = ChainTxData{
416 : : // Data from RPC: getchaintxstats 4096 0000000002368b1e4ee27e2e85676ae6f9f9e69579b29093e9a82c170bf7cf8a
417 : : .nTime = 1772013387,
418 : : .tx_count = 14191421,
419 : : .dTxRate = 0.01848579579528412,
420 : : };
421 : :
422 : : // Generated by headerssync-params.py on 2026-02-25.
423 : 1912 : m_headers_sync_params = HeadersSyncParams{
424 : : .commitment_period = 606,
425 : : .redownload_buffer_size = 16092, // 16092/606 = ~26.6 commitments
426 : : };
427 : 1912 : }
428 : : };
429 : :
430 : : /**
431 : : * Signet: test network with an additional consensus parameter (see BIP325).
432 : : */
433 : 0 : class SigNetParams : public CChainParams {
434 : : public:
435 : 1993 : explicit SigNetParams(const SigNetOptions& options)
436 : 1993 : {
437 : 1993 : std::vector<uint8_t> bin;
438 [ - + ]: 1993 : vFixedSeeds.clear();
439 : 1993 : vSeeds.clear();
440 : :
441 [ + + ]: 1993 : if (!options.challenge) {
442 [ + - ]: 3966 : bin = "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"_hex_v_u8;
443 [ + - + - ]: 1983 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_signet), std::end(chainparams_seed_signet));
444 [ + - ]: 1983 : vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
445 [ + - ]: 1983 : 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
446 : :
447 : 1983 : consensus.nMinimumChainWork = uint256{"00000000000000000000000000000000000000000000000000000b463ea0a4b8"};
448 : 1983 : consensus.defaultAssumeValid = uint256{"00000008414aab61092ef93f1aacc54cf9e9f16af29ddad493b908a01ff5c329"}; // 293175
449 : 1983 : m_assumed_blockchain_size = 24;
450 : 1983 : m_assumed_chain_state_size = 4;
451 : 1983 : chainTxData = ChainTxData{
452 : : // Data from RPC: getchaintxstats 4096 00000008414aab61092ef93f1aacc54cf9e9f16af29ddad493b908a01ff5c329
453 : : .nTime = 1772055248,
454 : : .tx_count = 28676833,
455 : : .dTxRate = 0.06736623436338929,
456 : : };
457 : : } else {
458 [ + - ]: 10 : bin = *options.challenge;
459 : 10 : consensus.nMinimumChainWork = uint256{};
460 : 10 : consensus.defaultAssumeValid = uint256{};
461 : 10 : m_assumed_blockchain_size = 0;
462 : 10 : m_assumed_chain_state_size = 0;
463 : 10 : chainTxData = ChainTxData{
464 : : 0,
465 : : 0,
466 : : 0,
467 : : };
468 [ - + + - : 20 : LogInfo("Signet with challenge %s", HexStr(bin));
+ - ]
469 : : }
470 : :
471 [ - + ]: 1993 : if (options.seeds) {
472 [ # # ]: 0 : vSeeds = *options.seeds;
473 : : }
474 : :
475 : 1993 : m_chain_type = ChainType::SIGNET;
476 : 1993 : consensus.signet_blocks = true;
477 [ + - ]: 1993 : consensus.signet_challenge.assign(bin.begin(), bin.end());
478 : 1993 : consensus.nSubsidyHalvingInterval = 210000;
479 : 1993 : consensus.BIP34Height = 1;
480 : 1993 : consensus.BIP34Hash = uint256{};
481 : 1993 : consensus.BIP65Height = 1;
482 : 1993 : consensus.BIP66Height = 1;
483 : 1993 : consensus.CSVHeight = 1;
484 : 1993 : consensus.SegwitHeight = 1;
485 : 1993 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
486 : 1993 : consensus.nPowTargetSpacing = 10 * 60;
487 : 1993 : consensus.fPowAllowMinDifficultyBlocks = false;
488 : 1993 : consensus.enforce_BIP94 = false;
489 : 1993 : consensus.fPowNoRetargeting = false;
490 : 1993 : consensus.MinBIP9WarningHeight = 0;
491 : 1993 : consensus.powLimit = uint256{"00000377ae000000000000000000000000000000000000000000000000000000"};
492 [ + - ]: 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
493 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
494 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
495 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
496 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
497 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
498 : :
499 : : // Activation of Taproot (BIPs 340-342)
500 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
501 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
502 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
503 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
504 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
505 : 1993 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
506 : :
507 : : // message start is defined as the first 4 bytes of the sha256d of the block script
508 [ + - ]: 1993 : HashWriter h{};
509 [ + - ]: 1993 : h << consensus.signet_challenge;
510 [ + - ]: 1993 : uint256 hash = h.GetHash();
511 : 1993 : std::copy_n(hash.begin(), 4, pchMessageStart.begin());
512 : :
513 : 1993 : nDefaultPort = 38333;
514 : 1993 : nPruneAfterHeight = 1000;
515 : :
516 [ + - ]: 1993 : genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
517 [ + - ]: 1993 : consensus.hashGenesisBlock = genesis.GetHash();
518 [ - + ]: 1993 : assert(consensus.hashGenesisBlock == uint256{"00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"});
519 [ - + ]: 1993 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
520 : :
521 : 1993 : m_assumeutxo_data = {
522 : : {
523 : : .height = 160'000,
524 : 1993 : .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}},
525 : : .m_chain_tx_count = 2289496,
526 : : .blockhash = uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"},
527 : : },
528 : : {
529 : : .height = 290'000,
530 [ + - ]: 1993 : .hash_serialized = AssumeutxoHash{uint256{"97267e000b4b876800167e71b9123f1529d13b14308abec2888bbd2160d14545"}},
531 : : .m_chain_tx_count = 28547497,
532 : : .blockhash = uint256{"0000000577f2741bb30cd9d39d6d71b023afbeb9764f6260786a97969d5c9ac0"},
533 : : }
534 [ + - ]: 1993 : };
535 : :
536 [ + - + - ]: 1993 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
537 [ + - + - ]: 1993 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
538 [ + - + - ]: 1993 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
539 [ + - ]: 1993 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
540 [ + - ]: 1993 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
541 : :
542 [ + - ]: 1993 : bech32_hrp = "tb";
543 : :
544 : 1993 : fDefaultConsistencyChecks = false;
545 : 1993 : m_is_mockable_chain = false;
546 : :
547 : : // Generated by headerssync-params.py on 2026-02-25.
548 : 1993 : m_headers_sync_params = HeadersSyncParams{
549 : : .commitment_period = 620,
550 : : .redownload_buffer_size = 15724, // 15724/620 = ~25.4 commitments
551 : : };
552 : 1993 : }
553 : : };
554 : :
555 : : /**
556 : : * Regression test: intended for private networks only. Has minimal difficulty to ensure that
557 : : * blocks can be found instantly.
558 : : */
559 : 0 : class CRegTestParams : public CChainParams
560 : : {
561 : : public:
562 : 3276 : explicit CRegTestParams(const RegTestOptions& opts)
563 : 3276 : {
564 : 3276 : m_chain_type = ChainType::REGTEST;
565 : 3276 : consensus.signet_blocks = false;
566 [ - + ]: 3276 : consensus.signet_challenge.clear();
567 : 3276 : consensus.nSubsidyHalvingInterval = 150;
568 : 3276 : consensus.BIP34Height = 1; // Always active unless overridden
569 : 3276 : consensus.BIP34Hash = uint256();
570 : 3276 : consensus.BIP65Height = 1; // Always active unless overridden
571 : 3276 : consensus.BIP66Height = 1; // Always active unless overridden
572 : 3276 : consensus.CSVHeight = 1; // Always active unless overridden
573 : 3276 : consensus.SegwitHeight = 0; // Always active unless overridden
574 : 3276 : consensus.MinBIP9WarningHeight = 0;
575 : 3276 : consensus.powLimit = uint256{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
576 : 3276 : consensus.nPowTargetTimespan = 24 * 60 * 60; // one day
577 : 3276 : consensus.nPowTargetSpacing = 10 * 60;
578 : 3276 : consensus.fPowAllowMinDifficultyBlocks = true;
579 : 3276 : consensus.enforce_BIP94 = opts.enforce_bip94;
580 : 3276 : consensus.fPowNoRetargeting = true;
581 : :
582 [ + + ]: 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
583 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
584 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
585 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
586 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 108; // 75%
587 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 144; // Faster than normal for regtest (144 instead of 2016)
588 : :
589 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
590 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
591 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
592 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
593 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 108; // 75%
594 : 3276 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 144;
595 : :
596 : 3276 : consensus.nMinimumChainWork = uint256{};
597 : 3276 : consensus.defaultAssumeValid = uint256{};
598 : :
599 : 3276 : pchMessageStart[0] = 0xfa;
600 : 3276 : pchMessageStart[1] = 0xbf;
601 : 3276 : pchMessageStart[2] = 0xb5;
602 : 3276 : pchMessageStart[3] = 0xda;
603 : 3276 : nDefaultPort = 18444;
604 [ + + ]: 3276 : nPruneAfterHeight = opts.fastprune ? 100 : 1000;
605 : 3276 : m_assumed_blockchain_size = 0;
606 : 3276 : m_assumed_chain_state_size = 0;
607 : :
608 [ + + + + : 3307 : for (const auto& [dep, height] : opts.activation_heights) {
+ + + - ]
609 [ + + + + : 31 : switch (dep) {
+ - ]
610 : 15 : case Consensus::BuriedDeployment::DEPLOYMENT_SEGWIT:
611 : 15 : consensus.SegwitHeight = int{height};
612 : 15 : break;
613 : 3 : case Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB:
614 : 3 : consensus.BIP34Height = int{height};
615 : 3 : break;
616 : 5 : case Consensus::BuriedDeployment::DEPLOYMENT_DERSIG:
617 : 5 : consensus.BIP66Height = int{height};
618 : 5 : break;
619 : 3 : case Consensus::BuriedDeployment::DEPLOYMENT_CLTV:
620 : 3 : consensus.BIP65Height = int{height};
621 : 3 : break;
622 : 5 : case Consensus::BuriedDeployment::DEPLOYMENT_CSV:
623 : 5 : consensus.CSVHeight = int{height};
624 : 5 : break;
625 : : }
626 : : }
627 : :
628 [ + + ]: 3278 : for (const auto& [deployment_pos, version_bits_params] : opts.version_bits_parameters) {
629 : 2 : consensus.vDeployments[deployment_pos].nStartTime = version_bits_params.start_time;
630 : 2 : consensus.vDeployments[deployment_pos].nTimeout = version_bits_params.timeout;
631 : 2 : consensus.vDeployments[deployment_pos].min_activation_height = version_bits_params.min_activation_height;
632 : : }
633 : :
634 [ + - ]: 3276 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
635 [ + - ]: 3276 : consensus.hashGenesisBlock = genesis.GetHash();
636 [ - + ]: 3276 : assert(consensus.hashGenesisBlock == uint256{"0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"});
637 [ - + ]: 3276 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
638 : :
639 [ - + ]: 3276 : vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
640 : 3276 : vSeeds.clear();
641 [ + - ]: 3276 : vSeeds.emplace_back("dummySeed.invalid.");
642 : :
643 : 3276 : fDefaultConsistencyChecks = true;
644 : 3276 : m_is_mockable_chain = true;
645 : :
646 : 3276 : m_assumeutxo_data = {
647 : : { // For use by unit tests
648 : : .height = 110,
649 : 3276 : .hash_serialized = AssumeutxoHash{uint256{"b952555c8ab81fec46f3d4253b7af256d766ceb39fb7752b9d18cdf4a0141327"}},
650 : : .m_chain_tx_count = 111,
651 : : .blockhash = uint256{"6affe030b7965ab538f820a56ef56c8149b7dc1d1c144af57113be080db7c397"},
652 : : },
653 : : {
654 : : // For use by fuzz target src/test/fuzz/utxo_snapshot.cpp
655 : : .height = 200,
656 : 3276 : .hash_serialized = AssumeutxoHash{uint256{"17dcc016d188d16068907cdeb38b75691a118d43053b8cd6a25969419381d13a"}},
657 : : .m_chain_tx_count = 201,
658 : : .blockhash = uint256{"385901ccbd69dff6bbd00065d01fb8a9e464dede7cfe0372443884f9b1dcf6b9"},
659 : : },
660 : : {
661 : : // For use by test/functional/feature_assumeutxo.py and test/functional/tool_bitcoin_chainstate.py
662 : : .height = 299,
663 [ + - ]: 3276 : .hash_serialized = AssumeutxoHash{uint256{"d2b051ff5e8eef46520350776f4100dd710a63447a8e01d917e92e79751a63e2"}},
664 : : .m_chain_tx_count = 334,
665 : : .blockhash = uint256{"7cc695046fec709f8c9394b6f928f81e81fd3ac20977bb68760fa1faa7916ea2"},
666 : : },
667 [ + - ]: 3276 : };
668 : :
669 : 3276 : chainTxData = ChainTxData{
670 : : .nTime = 0,
671 : : .tx_count = 0,
672 : : .dTxRate = 0.001, // Set a non-zero rate to make it testable
673 : : };
674 : :
675 [ + - + - ]: 3276 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
676 [ + - + - ]: 3276 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
677 [ + - + - ]: 3276 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
678 [ + - ]: 3276 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
679 [ + - ]: 3276 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
680 : :
681 [ + - ]: 3276 : bech32_hrp = "bcrt";
682 : :
683 : : // Copied from Testnet4.
684 : 3276 : m_headers_sync_params = HeadersSyncParams{
685 : : .commitment_period = 275,
686 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
687 : : };
688 : 3276 : }
689 : : };
690 : :
691 : 1993 : std::unique_ptr<const CChainParams> CChainParams::SigNet(const SigNetOptions& options)
692 : : {
693 : 1993 : return std::make_unique<const SigNetParams>(options);
694 : : }
695 : :
696 : 3276 : std::unique_ptr<const CChainParams> CChainParams::RegTest(const RegTestOptions& options)
697 : : {
698 : 3276 : return std::make_unique<const CRegTestParams>(options);
699 : : }
700 : :
701 : 2676 : std::unique_ptr<const CChainParams> CChainParams::Main()
702 : : {
703 : 2676 : return std::make_unique<const CMainParams>();
704 : : }
705 : :
706 : 1945 : std::unique_ptr<const CChainParams> CChainParams::TestNet()
707 : : {
708 : 1945 : return std::make_unique<const CTestNetParams>();
709 : : }
710 : :
711 : 1912 : std::unique_ptr<const CChainParams> CChainParams::TestNet4()
712 : : {
713 : 1912 : return std::make_unique<const CTestNet4Params>();
714 : : }
715 : :
716 : 15 : std::vector<int> CChainParams::GetAvailableSnapshotHeights() const
717 : : {
718 : 15 : std::vector<int> heights;
719 [ - + + - ]: 15 : heights.reserve(m_assumeutxo_data.size());
720 : :
721 [ + + ]: 60 : for (const auto& data : m_assumeutxo_data) {
722 [ + - ]: 45 : heights.emplace_back(data.height);
723 : : }
724 : 15 : return heights;
725 : 0 : }
726 : :
727 : 8 : std::optional<ChainType> GetNetworkForMagic(const MessageStartChars& message)
728 : : {
729 : 8 : const auto mainnet_msg = CChainParams::Main()->MessageStart();
730 : 8 : const auto testnet_msg = CChainParams::TestNet()->MessageStart();
731 : 8 : const auto testnet4_msg = CChainParams::TestNet4()->MessageStart();
732 : 8 : const auto regtest_msg = CChainParams::RegTest({})->MessageStart();
733 [ + - ]: 8 : const auto signet_msg = CChainParams::SigNet({})->MessageStart();
734 : :
735 [ + + ]: 8 : if (std::ranges::equal(message, mainnet_msg)) {
736 : 1 : return ChainType::MAIN;
737 [ - + ]: 7 : } else if (std::ranges::equal(message, testnet_msg)) {
738 : 0 : return ChainType::TESTNET;
739 [ + + ]: 7 : } else if (std::ranges::equal(message, testnet4_msg)) {
740 : 1 : return ChainType::TESTNET4;
741 [ + + ]: 6 : } else if (std::ranges::equal(message, regtest_msg)) {
742 : 3 : return ChainType::REGTEST;
743 [ + + ]: 3 : } else if (std::ranges::equal(message, signet_msg)) {
744 : 1 : return ChainType::SIGNET;
745 : : }
746 : 2 : return std::nullopt;
747 [ + - ]: 8 : }
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