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 : 11778 : 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 : 11778 : CMutableTransaction txNew;
39 : 11778 : txNew.version = 1;
40 [ + - ]: 11778 : txNew.vin.resize(1);
41 [ + - ]: 11778 : txNew.vout.resize(1);
42 [ + - + - : 23556 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ - ]
43 : 11778 : txNew.vout[0].nValue = genesisReward;
44 : 11778 : txNew.vout[0].scriptPubKey = genesisOutputScript;
45 : :
46 : 11778 : CBlock genesis;
47 : 11778 : genesis.nTime = nTime;
48 : 11778 : genesis.nBits = nBits;
49 : 11778 : genesis.nNonce = nNonce;
50 : 11778 : genesis.nVersion = nVersion;
51 [ + - + - : 23556 : genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
- + ]
52 : 11778 : genesis.hashPrevBlock.SetNull();
53 [ + - ]: 11778 : genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
54 : 11778 : return genesis;
55 : 11778 : }
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 : 9870 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
69 : : {
70 : 9870 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
71 [ + - ]: 9870 : const CScript genesisOutputScript = CScript() << "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"_hex << OP_CHECKSIG;
72 [ + - ]: 9870 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
73 : 9870 : }
74 : :
75 : : /**
76 : : * Main network on which people trade goods and services.
77 : : */
78 : 0 : class CMainParams : public CChainParams {
79 : : public:
80 : 2671 : CMainParams() {
81 : 2671 : m_chain_type = ChainType::MAIN;
82 : 2671 : consensus.signet_blocks = false;
83 [ - + ]: 2671 : consensus.signet_challenge.clear();
84 : 2671 : consensus.nSubsidyHalvingInterval = 210000;
85 : 2671 : consensus.script_flag_exceptions.emplace( // BIP16 exception
86 [ + - ]: 2671 : uint256{"00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22"}, SCRIPT_VERIFY_NONE);
87 : 2671 : consensus.script_flag_exceptions.emplace( // Taproot exception
88 [ + - ]: 2671 : uint256{"0000000000000000000f14c35b2d841e986ab5441de8c585d5ffe55ea1e395ad"}, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS);
89 : 2671 : consensus.BIP34Height = 227931;
90 : 2671 : consensus.BIP34Hash = uint256{"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"};
91 : 2671 : consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
92 : 2671 : consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
93 : 2671 : consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
94 : 2671 : consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
95 : 2671 : consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
96 : 2671 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
97 : 2671 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
98 : 2671 : consensus.nPowTargetSpacing = 10 * 60;
99 : 2671 : consensus.fPowAllowMinDifficultyBlocks = false;
100 : 2671 : consensus.enforce_BIP94 = false;
101 : 2671 : consensus.fPowNoRetargeting = false;
102 [ + - ]: 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
103 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
104 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
105 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
106 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
107 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
108 : :
109 : : // Deployment of Taproot (BIPs 340-342)
110 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
111 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
112 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
113 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
114 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
115 : 2671 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
116 : :
117 : 2671 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000dee8e2a309ad8a9820433c68"};
118 : 2671 : consensus.defaultAssumeValid = uint256{"00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb"}; // 912683
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 : 2671 : pchMessageStart[0] = 0xf9;
126 : 2671 : pchMessageStart[1] = 0xbe;
127 : 2671 : pchMessageStart[2] = 0xb4;
128 : 2671 : pchMessageStart[3] = 0xd9;
129 : 2671 : nDefaultPort = 8333;
130 : 2671 : nPruneAfterHeight = 100000;
131 : 2671 : m_assumed_blockchain_size = 810;
132 : 2671 : m_assumed_chain_state_size = 14;
133 : :
134 [ + - ]: 2671 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
135 [ + - ]: 2671 : consensus.hashGenesisBlock = genesis.GetHash();
136 [ - + ]: 2671 : assert(consensus.hashGenesisBlock == uint256{"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"});
137 [ - + ]: 2671 : 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 [ + - ]: 2671 : vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
145 [ + - ]: 2671 : vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
146 [ + - ]: 2671 : vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
147 [ + - ]: 2671 : vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
148 [ + - ]: 2671 : vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
149 [ + - ]: 2671 : vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
150 [ + - ]: 2671 : vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
151 [ + - ]: 2671 : 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 [ + - + - ]: 2671 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
154 [ + - + - ]: 2671 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
155 [ + - + - ]: 2671 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
156 [ + - ]: 2671 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
157 [ + - ]: 2671 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
158 : :
159 [ + - ]: 2671 : bech32_hrp = "bc";
160 : :
161 [ + - + - ]: 2671 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
162 : :
163 : 2671 : fDefaultConsistencyChecks = false;
164 : 2671 : m_is_mockable_chain = false;
165 : :
166 : 2671 : m_assumeutxo_data = {
167 : : {
168 : : .height = 840'000,
169 : 2671 : .hash_serialized = AssumeutxoHash{uint256{"a2a5521b1b5ab65f67818e5e8eccabb7171a517f9e2382208f77687310768f96"}},
170 : : .m_chain_tx_count = 991032194,
171 : : .blockhash = uint256{"0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5"},
172 : : },
173 : : {
174 : : .height = 880'000,
175 : 2671 : .hash_serialized = AssumeutxoHash{uint256{"dbd190983eaf433ef7c15f78a278ae42c00ef52e0fd2a54953782175fbadcea9"}},
176 : : .m_chain_tx_count = 1145604538,
177 : : .blockhash = uint256{"000000000000000000010b17283c3c400507969a9c2afd1dcf2082ec5cca2880"},
178 : : },
179 : : {
180 : : .height = 910'000,
181 [ + - ]: 2671 : .hash_serialized = AssumeutxoHash{uint256{"4daf8a17b4902498c5787966a2b51c613acdab5df5db73f196fa59a4da2f1568"}},
182 : : .m_chain_tx_count = 1226586151,
183 : : .blockhash = uint256{"0000000000000000000108970acb9522ffd516eae17acddcb1bd16469194a821"},
184 : : }
185 [ + - ]: 2671 : };
186 : :
187 : 2671 : chainTxData = ChainTxData{
188 : : // Data from RPC: getchaintxstats 4096 00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb
189 : : .nTime = 1756722903,
190 : : .tx_count = 1235299397,
191 : : .dTxRate = 5.456290459519495,
192 : : };
193 : :
194 : : // Generated by headerssync-params.py on 2025-09-01.
195 : 2671 : m_headers_sync_params = HeadersSyncParams{
196 : : .commitment_period = 632,
197 : : .redownload_buffer_size = 15009, // 15009/632 = ~23.7 commitments
198 : : };
199 : 2671 : }
200 : : };
201 : :
202 : : /**
203 : : * Testnet (v3): public test network which is reset from time to time.
204 : : */
205 : 0 : class CTestNetParams : public CChainParams {
206 : : public:
207 : 1941 : CTestNetParams() {
208 : 1941 : m_chain_type = ChainType::TESTNET;
209 : 1941 : consensus.signet_blocks = false;
210 [ - + ]: 1941 : consensus.signet_challenge.clear();
211 : 1941 : consensus.nSubsidyHalvingInterval = 210000;
212 : 1941 : consensus.script_flag_exceptions.emplace( // BIP16 exception
213 [ + - ]: 1941 : uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
214 : 1941 : consensus.BIP34Height = 21111;
215 : 1941 : consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
216 : 1941 : consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
217 : 1941 : consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
218 : 1941 : consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
219 : 1941 : consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
220 : 1941 : consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
221 : 1941 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
222 : 1941 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
223 : 1941 : consensus.nPowTargetSpacing = 10 * 60;
224 : 1941 : consensus.fPowAllowMinDifficultyBlocks = true;
225 : 1941 : consensus.enforce_BIP94 = false;
226 : 1941 : consensus.fPowNoRetargeting = false;
227 [ + - ]: 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
228 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
229 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
230 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
231 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
232 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
233 : :
234 : : // Deployment of Taproot (BIPs 340-342)
235 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
236 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
237 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
238 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
239 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
240 : 1941 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
241 : :
242 : 1941 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000016dd270dd94fac1d7632"};
243 : 1941 : consensus.defaultAssumeValid = uint256{"0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34"}; // 4550000
244 : :
245 : 1941 : pchMessageStart[0] = 0x0b;
246 : 1941 : pchMessageStart[1] = 0x11;
247 : 1941 : pchMessageStart[2] = 0x09;
248 : 1941 : pchMessageStart[3] = 0x07;
249 : 1941 : nDefaultPort = 18333;
250 : 1941 : nPruneAfterHeight = 1000;
251 : 1941 : m_assumed_blockchain_size = 240;
252 : 1941 : m_assumed_chain_state_size = 19;
253 : :
254 [ + - ]: 1941 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
255 [ + - ]: 1941 : consensus.hashGenesisBlock = genesis.GetHash();
256 [ - + ]: 1941 : assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
257 [ - + ]: 1941 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
258 : :
259 [ - + ]: 1941 : vFixedSeeds.clear();
260 : 1941 : vSeeds.clear();
261 : : // nodes with support for servicebits filtering should be at the top
262 [ + - ]: 1941 : vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
263 [ + - ]: 1941 : vSeeds.emplace_back("seed.tbtc.petertodd.net.");
264 [ + - ]: 1941 : vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
265 [ + - ]: 1941 : vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
266 [ + - ]: 1941 : 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
267 : :
268 [ + - + - ]: 1941 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
269 [ + - + - ]: 1941 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
270 [ + - + - ]: 1941 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
271 [ + - ]: 1941 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
272 [ + - ]: 1941 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
273 : :
274 [ + - ]: 1941 : bech32_hrp = "tb";
275 : :
276 [ + - + - ]: 1941 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
277 : :
278 : 1941 : fDefaultConsistencyChecks = false;
279 : 1941 : m_is_mockable_chain = false;
280 : :
281 : 1941 : m_assumeutxo_data = {
282 : : {
283 : : .height = 2'500'000,
284 : 1941 : .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}},
285 : : .m_chain_tx_count = 66484552,
286 : : .blockhash = uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"},
287 : : }
288 [ + - ]: 1941 : };
289 : :
290 : 1941 : chainTxData = ChainTxData{
291 : : // Data from RPC: getchaintxstats 4096 0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34
292 : : .nTime = 1751816758,
293 : : .tx_count = 508468699,
294 : : .dTxRate = 7.172978845985714,
295 : : };
296 : :
297 : : // Generated by headerssync-params.py on 2025-09-03.
298 : 1941 : m_headers_sync_params = HeadersSyncParams{
299 : : .commitment_period = 628,
300 : : .redownload_buffer_size = 13460, // 13460/628 = ~21.4 commitments
301 : : };
302 : 1941 : }
303 : : };
304 : :
305 : : /**
306 : : * Testnet (v4): public test network which is reset from time to time.
307 : : */
308 : 0 : class CTestNet4Params : public CChainParams {
309 : : public:
310 : 1908 : CTestNet4Params() {
311 : 1908 : m_chain_type = ChainType::TESTNET4;
312 : 1908 : consensus.signet_blocks = false;
313 [ - + ]: 1908 : consensus.signet_challenge.clear();
314 : 1908 : consensus.nSubsidyHalvingInterval = 210000;
315 : 1908 : consensus.BIP34Height = 1;
316 : 1908 : consensus.BIP34Hash = uint256{};
317 : 1908 : consensus.BIP65Height = 1;
318 : 1908 : consensus.BIP66Height = 1;
319 : 1908 : consensus.CSVHeight = 1;
320 : 1908 : consensus.SegwitHeight = 1;
321 : 1908 : consensus.MinBIP9WarningHeight = 0;
322 : 1908 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
323 : 1908 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
324 : 1908 : consensus.nPowTargetSpacing = 10 * 60;
325 : 1908 : consensus.fPowAllowMinDifficultyBlocks = true;
326 : 1908 : consensus.enforce_BIP94 = true;
327 : 1908 : consensus.fPowNoRetargeting = false;
328 : :
329 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
330 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
331 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
332 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
333 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
334 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
335 : :
336 : : // Deployment of Taproot (BIPs 340-342)
337 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
338 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
339 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
340 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
341 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
342 : 1908 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
343 : :
344 : 1908 : consensus.nMinimumChainWork = uint256{"00000000000000000000000000000000000000000000034a4690fe592dc49c7c"};
345 : 1908 : consensus.defaultAssumeValid = uint256{"000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b"}; // 91000
346 : :
347 : 1908 : pchMessageStart[0] = 0x1c;
348 : 1908 : pchMessageStart[1] = 0x16;
349 : 1908 : pchMessageStart[2] = 0x3f;
350 : 1908 : pchMessageStart[3] = 0x28;
351 : 1908 : nDefaultPort = 48333;
352 : 1908 : nPruneAfterHeight = 1000;
353 : 1908 : m_assumed_blockchain_size = 22;
354 : 1908 : m_assumed_chain_state_size = 2;
355 : :
356 : 1908 : const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e";
357 [ + - ]: 1908 : const CScript testnet4_genesis_script = CScript() << "000000000000000000000000000000000000000000000000000000000000000000"_hex << OP_CHECKSIG;
358 : 3816 : genesis = CreateGenesisBlock(testnet4_genesis_msg,
359 : : testnet4_genesis_script,
360 : : 1714777860,
361 : : 393743547,
362 : : 0x1d00ffff,
363 : : 1,
364 [ + - ]: 1908 : 50 * COIN);
365 [ + - ]: 1908 : consensus.hashGenesisBlock = genesis.GetHash();
366 [ - + ]: 1908 : assert(consensus.hashGenesisBlock == uint256{"00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"});
367 [ - + ]: 1908 : assert(genesis.hashMerkleRoot == uint256{"7aa0a7ae1e223414cb807e40cd57e667b718e42aaf9306db9102fe28912b7b4e"});
368 : :
369 [ - + ]: 1908 : vFixedSeeds.clear();
370 : 1908 : vSeeds.clear();
371 : : // nodes with support for servicebits filtering should be at the top
372 [ + - ]: 1908 : vSeeds.emplace_back("seed.testnet4.bitcoin.sprovoost.nl."); // Sjors Provoost
373 [ + - ]: 1908 : vSeeds.emplace_back("seed.testnet4.wiz.biz."); // Jason Maurice
374 : :
375 [ + - + - ]: 1908 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
376 [ + - + - ]: 1908 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
377 [ + - + - ]: 1908 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
378 [ + - ]: 1908 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
379 [ + - ]: 1908 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
380 : :
381 [ + - ]: 1908 : bech32_hrp = "tb";
382 : :
383 [ + - + - ]: 1908 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_testnet4), std::end(chainparams_seed_testnet4));
384 : :
385 : 1908 : fDefaultConsistencyChecks = false;
386 : 1908 : m_is_mockable_chain = false;
387 : :
388 : 1908 : m_assumeutxo_data = {
389 : : {
390 : : .height = 90'000,
391 : 1908 : .hash_serialized = AssumeutxoHash{uint256{"784fb5e98241de66fdd429f4392155c9e7db5c017148e66e8fdbc95746f8b9b5"}},
392 : : .m_chain_tx_count = 11347043,
393 : : .blockhash = uint256{"0000000002ebe8bcda020e0dd6ccfbdfac531d2f6a81457191b99fc2df2dbe3b"},
394 : : }
395 [ + - ]: 1908 : };
396 : :
397 : 1908 : chainTxData = ChainTxData{
398 : : // Data from RPC: getchaintxstats 4096 000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b
399 : : .nTime = 1752470331,
400 : : .tx_count = 11414302,
401 : : .dTxRate = 0.2842619757327476,
402 : : };
403 : :
404 : : // Generated by headerssync-params.py on 2025-09-03.
405 : 1908 : m_headers_sync_params = HeadersSyncParams{
406 : : .commitment_period = 275,
407 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
408 : : };
409 : 1908 : }
410 : : };
411 : :
412 : : /**
413 : : * Signet: test network with an additional consensus parameter (see BIP325).
414 : : */
415 : 0 : class SigNetParams : public CChainParams {
416 : : public:
417 : 1989 : explicit SigNetParams(const SigNetOptions& options)
418 : 1989 : {
419 : 1989 : std::vector<uint8_t> bin;
420 [ - + ]: 1989 : vFixedSeeds.clear();
421 : 1989 : vSeeds.clear();
422 : :
423 [ + + ]: 1989 : if (!options.challenge) {
424 [ + - ]: 3958 : bin = "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"_hex_v_u8;
425 [ + - + - ]: 1979 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_signet), std::end(chainparams_seed_signet));
426 [ + - ]: 1979 : vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
427 [ + - ]: 1979 : 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
428 : :
429 : 1979 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000000000000067d328e681a"};
430 : 1979 : consensus.defaultAssumeValid = uint256{"000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e"}; // 267665
431 : 1979 : m_assumed_blockchain_size = 20;
432 : 1979 : m_assumed_chain_state_size = 4;
433 : 1979 : chainTxData = ChainTxData{
434 : : // Data from RPC: getchaintxstats 4096 000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e
435 : : .nTime = 1756723017,
436 : : .tx_count = 26185472,
437 : : .dTxRate = 0.7452721495389969,
438 : : };
439 : : } else {
440 [ + - ]: 10 : bin = *options.challenge;
441 : 10 : consensus.nMinimumChainWork = uint256{};
442 : 10 : consensus.defaultAssumeValid = uint256{};
443 : 10 : m_assumed_blockchain_size = 0;
444 : 10 : m_assumed_chain_state_size = 0;
445 : 10 : chainTxData = ChainTxData{
446 : : 0,
447 : : 0,
448 : : 0,
449 : : };
450 [ - + + - : 20 : LogInfo("Signet with challenge %s", HexStr(bin));
+ - ]
451 : : }
452 : :
453 [ - + ]: 1989 : if (options.seeds) {
454 [ # # ]: 0 : vSeeds = *options.seeds;
455 : : }
456 : :
457 : 1989 : m_chain_type = ChainType::SIGNET;
458 : 1989 : consensus.signet_blocks = true;
459 [ + - ]: 1989 : consensus.signet_challenge.assign(bin.begin(), bin.end());
460 : 1989 : consensus.nSubsidyHalvingInterval = 210000;
461 : 1989 : consensus.BIP34Height = 1;
462 : 1989 : consensus.BIP34Hash = uint256{};
463 : 1989 : consensus.BIP65Height = 1;
464 : 1989 : consensus.BIP66Height = 1;
465 : 1989 : consensus.CSVHeight = 1;
466 : 1989 : consensus.SegwitHeight = 1;
467 : 1989 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
468 : 1989 : consensus.nPowTargetSpacing = 10 * 60;
469 : 1989 : consensus.fPowAllowMinDifficultyBlocks = false;
470 : 1989 : consensus.enforce_BIP94 = false;
471 : 1989 : consensus.fPowNoRetargeting = false;
472 : 1989 : consensus.MinBIP9WarningHeight = 0;
473 : 1989 : consensus.powLimit = uint256{"00000377ae000000000000000000000000000000000000000000000000000000"};
474 [ + - ]: 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
475 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
476 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
477 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
478 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
479 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
480 : :
481 : : // Activation of Taproot (BIPs 340-342)
482 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
483 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
484 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
485 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
486 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
487 : 1989 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
488 : :
489 : : // message start is defined as the first 4 bytes of the sha256d of the block script
490 [ + - ]: 1989 : HashWriter h{};
491 [ + - ]: 1989 : h << consensus.signet_challenge;
492 [ + - ]: 1989 : uint256 hash = h.GetHash();
493 : 1989 : std::copy_n(hash.begin(), 4, pchMessageStart.begin());
494 : :
495 : 1989 : nDefaultPort = 38333;
496 : 1989 : nPruneAfterHeight = 1000;
497 : :
498 [ + - ]: 1989 : genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
499 [ + - ]: 1989 : consensus.hashGenesisBlock = genesis.GetHash();
500 [ - + ]: 1989 : assert(consensus.hashGenesisBlock == uint256{"00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"});
501 [ - + ]: 1989 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
502 : :
503 : 1989 : m_assumeutxo_data = {
504 : : {
505 : : .height = 160'000,
506 : 1989 : .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}},
507 : : .m_chain_tx_count = 2289496,
508 : : .blockhash = uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"},
509 : : }
510 [ + - ]: 1989 : };
511 : :
512 [ + - + - ]: 1989 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
513 [ + - + - ]: 1989 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
514 [ + - + - ]: 1989 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
515 [ + - ]: 1989 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
516 [ + - ]: 1989 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
517 : :
518 [ + - ]: 1989 : bech32_hrp = "tb";
519 : :
520 : 1989 : fDefaultConsistencyChecks = false;
521 : 1989 : m_is_mockable_chain = false;
522 : :
523 : : // Generated by headerssync-params.py on 2025-09-03.
524 : 1989 : m_headers_sync_params = HeadersSyncParams{
525 : : .commitment_period = 390,
526 : : .redownload_buffer_size = 9584, // 9584/390 = ~24.6 commitments
527 : : };
528 : 1989 : }
529 : : };
530 : :
531 : : /**
532 : : * Regression test: intended for private networks only. Has minimal difficulty to ensure that
533 : : * blocks can be found instantly.
534 : : */
535 : 0 : class CRegTestParams : public CChainParams
536 : : {
537 : : public:
538 : 3269 : explicit CRegTestParams(const RegTestOptions& opts)
539 : 3269 : {
540 : 3269 : m_chain_type = ChainType::REGTEST;
541 : 3269 : consensus.signet_blocks = false;
542 [ - + ]: 3269 : consensus.signet_challenge.clear();
543 : 3269 : consensus.nSubsidyHalvingInterval = 150;
544 : 3269 : consensus.BIP34Height = 1; // Always active unless overridden
545 : 3269 : consensus.BIP34Hash = uint256();
546 : 3269 : consensus.BIP65Height = 1; // Always active unless overridden
547 : 3269 : consensus.BIP66Height = 1; // Always active unless overridden
548 : 3269 : consensus.CSVHeight = 1; // Always active unless overridden
549 : 3269 : consensus.SegwitHeight = 0; // Always active unless overridden
550 : 3269 : consensus.MinBIP9WarningHeight = 0;
551 : 3269 : consensus.powLimit = uint256{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
552 : 3269 : consensus.nPowTargetTimespan = 24 * 60 * 60; // one day
553 : 3269 : consensus.nPowTargetSpacing = 10 * 60;
554 : 3269 : consensus.fPowAllowMinDifficultyBlocks = true;
555 : 3269 : consensus.enforce_BIP94 = opts.enforce_bip94;
556 : 3269 : consensus.fPowNoRetargeting = true;
557 : :
558 [ + + ]: 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
559 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
560 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
561 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
562 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 108; // 75%
563 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 144; // Faster than normal for regtest (144 instead of 2016)
564 : :
565 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
566 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
567 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
568 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
569 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 108; // 75%
570 : 3269 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 144;
571 : :
572 : 3269 : consensus.nMinimumChainWork = uint256{};
573 : 3269 : consensus.defaultAssumeValid = uint256{};
574 : :
575 : 3269 : pchMessageStart[0] = 0xfa;
576 : 3269 : pchMessageStart[1] = 0xbf;
577 : 3269 : pchMessageStart[2] = 0xb5;
578 : 3269 : pchMessageStart[3] = 0xda;
579 : 3269 : nDefaultPort = 18444;
580 [ + + ]: 3269 : nPruneAfterHeight = opts.fastprune ? 100 : 1000;
581 : 3269 : m_assumed_blockchain_size = 0;
582 : 3269 : m_assumed_chain_state_size = 0;
583 : :
584 [ + + + + : 3300 : for (const auto& [dep, height] : opts.activation_heights) {
+ + + - ]
585 [ + + + + : 31 : switch (dep) {
+ - ]
586 : 15 : case Consensus::BuriedDeployment::DEPLOYMENT_SEGWIT:
587 : 15 : consensus.SegwitHeight = int{height};
588 : 15 : break;
589 : 3 : case Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB:
590 : 3 : consensus.BIP34Height = int{height};
591 : 3 : break;
592 : 5 : case Consensus::BuriedDeployment::DEPLOYMENT_DERSIG:
593 : 5 : consensus.BIP66Height = int{height};
594 : 5 : break;
595 : 3 : case Consensus::BuriedDeployment::DEPLOYMENT_CLTV:
596 : 3 : consensus.BIP65Height = int{height};
597 : 3 : break;
598 : 5 : case Consensus::BuriedDeployment::DEPLOYMENT_CSV:
599 : 5 : consensus.CSVHeight = int{height};
600 : 5 : break;
601 : : }
602 : : }
603 : :
604 [ + + ]: 3271 : for (const auto& [deployment_pos, version_bits_params] : opts.version_bits_parameters) {
605 : 2 : consensus.vDeployments[deployment_pos].nStartTime = version_bits_params.start_time;
606 : 2 : consensus.vDeployments[deployment_pos].nTimeout = version_bits_params.timeout;
607 : 2 : consensus.vDeployments[deployment_pos].min_activation_height = version_bits_params.min_activation_height;
608 : : }
609 : :
610 [ + - ]: 3269 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
611 [ + - ]: 3269 : consensus.hashGenesisBlock = genesis.GetHash();
612 [ - + ]: 3269 : assert(consensus.hashGenesisBlock == uint256{"0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"});
613 [ - + ]: 3269 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
614 : :
615 [ - + ]: 3269 : vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
616 : 3269 : vSeeds.clear();
617 [ + - ]: 3269 : vSeeds.emplace_back("dummySeed.invalid.");
618 : :
619 : 3269 : fDefaultConsistencyChecks = true;
620 : 3269 : m_is_mockable_chain = true;
621 : :
622 : 3269 : m_assumeutxo_data = {
623 : : { // For use by unit tests
624 : : .height = 110,
625 : 3269 : .hash_serialized = AssumeutxoHash{uint256{"b952555c8ab81fec46f3d4253b7af256d766ceb39fb7752b9d18cdf4a0141327"}},
626 : : .m_chain_tx_count = 111,
627 : : .blockhash = uint256{"6affe030b7965ab538f820a56ef56c8149b7dc1d1c144af57113be080db7c397"},
628 : : },
629 : : {
630 : : // For use by fuzz target src/test/fuzz/utxo_snapshot.cpp
631 : : .height = 200,
632 : 3269 : .hash_serialized = AssumeutxoHash{uint256{"17dcc016d188d16068907cdeb38b75691a118d43053b8cd6a25969419381d13a"}},
633 : : .m_chain_tx_count = 201,
634 : : .blockhash = uint256{"385901ccbd69dff6bbd00065d01fb8a9e464dede7cfe0372443884f9b1dcf6b9"},
635 : : },
636 : : {
637 : : // For use by test/functional/feature_assumeutxo.py and test/functional/tool_bitcoin_chainstate.py
638 : : .height = 299,
639 [ + - ]: 3269 : .hash_serialized = AssumeutxoHash{uint256{"d2b051ff5e8eef46520350776f4100dd710a63447a8e01d917e92e79751a63e2"}},
640 : : .m_chain_tx_count = 334,
641 : : .blockhash = uint256{"7cc695046fec709f8c9394b6f928f81e81fd3ac20977bb68760fa1faa7916ea2"},
642 : : },
643 [ + - ]: 3269 : };
644 : :
645 : 3269 : chainTxData = ChainTxData{
646 : : .nTime = 0,
647 : : .tx_count = 0,
648 : : .dTxRate = 0.001, // Set a non-zero rate to make it testable
649 : : };
650 : :
651 [ + - + - ]: 3269 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
652 [ + - + - ]: 3269 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
653 [ + - + - ]: 3269 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
654 [ + - ]: 3269 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
655 [ + - ]: 3269 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
656 : :
657 [ + - ]: 3269 : bech32_hrp = "bcrt";
658 : :
659 : : // Copied from Testnet4.
660 : 3269 : m_headers_sync_params = HeadersSyncParams{
661 : : .commitment_period = 275,
662 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
663 : : };
664 : 3269 : }
665 : : };
666 : :
667 : 1989 : std::unique_ptr<const CChainParams> CChainParams::SigNet(const SigNetOptions& options)
668 : : {
669 : 1989 : return std::make_unique<const SigNetParams>(options);
670 : : }
671 : :
672 : 3269 : std::unique_ptr<const CChainParams> CChainParams::RegTest(const RegTestOptions& options)
673 : : {
674 : 3269 : return std::make_unique<const CRegTestParams>(options);
675 : : }
676 : :
677 : 2671 : std::unique_ptr<const CChainParams> CChainParams::Main()
678 : : {
679 : 2671 : return std::make_unique<const CMainParams>();
680 : : }
681 : :
682 : 1941 : std::unique_ptr<const CChainParams> CChainParams::TestNet()
683 : : {
684 : 1941 : return std::make_unique<const CTestNetParams>();
685 : : }
686 : :
687 : 1908 : std::unique_ptr<const CChainParams> CChainParams::TestNet4()
688 : : {
689 : 1908 : return std::make_unique<const CTestNet4Params>();
690 : : }
691 : :
692 : 15 : std::vector<int> CChainParams::GetAvailableSnapshotHeights() const
693 : : {
694 : 15 : std::vector<int> heights;
695 [ - + + - ]: 15 : heights.reserve(m_assumeutxo_data.size());
696 : :
697 [ + + ]: 60 : for (const auto& data : m_assumeutxo_data) {
698 [ + - ]: 45 : heights.emplace_back(data.height);
699 : : }
700 : 15 : return heights;
701 : 0 : }
702 : :
703 : 8 : std::optional<ChainType> GetNetworkForMagic(const MessageStartChars& message)
704 : : {
705 : 8 : const auto mainnet_msg = CChainParams::Main()->MessageStart();
706 : 8 : const auto testnet_msg = CChainParams::TestNet()->MessageStart();
707 : 8 : const auto testnet4_msg = CChainParams::TestNet4()->MessageStart();
708 : 8 : const auto regtest_msg = CChainParams::RegTest({})->MessageStart();
709 [ + - ]: 8 : const auto signet_msg = CChainParams::SigNet({})->MessageStart();
710 : :
711 [ + + ]: 8 : if (std::ranges::equal(message, mainnet_msg)) {
712 : 1 : return ChainType::MAIN;
713 [ - + ]: 7 : } else if (std::ranges::equal(message, testnet_msg)) {
714 : 0 : return ChainType::TESTNET;
715 [ + + ]: 7 : } else if (std::ranges::equal(message, testnet4_msg)) {
716 : 1 : return ChainType::TESTNET4;
717 [ + + ]: 6 : } else if (std::ranges::equal(message, regtest_msg)) {
718 : 3 : return ChainType::REGTEST;
719 [ + + ]: 3 : } else if (std::ranges::equal(message, signet_msg)) {
720 : 1 : return ChainType::SIGNET;
721 : : }
722 : 2 : return std::nullopt;
723 [ + - ]: 8 : }
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