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 <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 : : // https://developercommunity.visualstudio.com/t/Bogus-C7595-error-on-valid-C20-code/10906093
34 : : #if defined(_MSC_VER)
35 : : auto consteval_ctor(auto&& input) { return input; }
36 : : #else
37 : : #define consteval_ctor(input) (input)
38 : : #endif
39 : :
40 : 4207 : static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
41 : : {
42 : 4207 : CMutableTransaction txNew;
43 : 4207 : txNew.version = 1;
44 [ + - ]: 4207 : txNew.vin.resize(1);
45 [ + - ]: 4207 : txNew.vout.resize(1);
46 [ + - + - : 8414 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ - ]
47 : 4207 : txNew.vout[0].nValue = genesisReward;
48 : 4207 : txNew.vout[0].scriptPubKey = genesisOutputScript;
49 : :
50 : 4207 : CBlock genesis;
51 : 4207 : genesis.nTime = nTime;
52 : 4207 : genesis.nBits = nBits;
53 : 4207 : genesis.nNonce = nNonce;
54 : 4207 : genesis.nVersion = nVersion;
55 [ + - + - : 8414 : genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
- + ]
56 : 4207 : genesis.hashPrevBlock.SetNull();
57 [ + - ]: 4207 : genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
58 : 4207 : return genesis;
59 : 4207 : }
60 : :
61 : : /**
62 : : * Build the genesis block. Note that the output of its generation
63 : : * transaction cannot be spent since it did not originally exist in the
64 : : * database.
65 : : *
66 : : * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
67 : : * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
68 : : * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
69 : : * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
70 : : * vMerkleTree: 4a5e1e
71 : : */
72 : 3542 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
73 : : {
74 : 3542 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
75 [ + - ]: 3542 : const CScript genesisOutputScript = CScript() << "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"_hex << OP_CHECKSIG;
76 [ + - ]: 3542 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
77 : 3542 : }
78 : :
79 : : /**
80 : : * Main network on which people trade goods and services.
81 : : */
82 : 0 : class CMainParams : public CChainParams {
83 : : public:
84 : 1286 : CMainParams() {
85 : 1286 : m_chain_type = ChainType::MAIN;
86 : 1286 : consensus.signet_blocks = false;
87 [ - + ]: 1286 : consensus.signet_challenge.clear();
88 : 1286 : consensus.nSubsidyHalvingInterval = 210000;
89 : 1286 : consensus.script_flag_exceptions.emplace( // BIP16 exception
90 [ + - ]: 1286 : uint256{"00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22"}, SCRIPT_VERIFY_NONE);
91 : 1286 : consensus.script_flag_exceptions.emplace( // Taproot exception
92 [ + - ]: 1286 : uint256{"0000000000000000000f14c35b2d841e986ab5441de8c585d5ffe55ea1e395ad"}, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS);
93 : 1286 : consensus.BIP34Height = 227931;
94 : 1286 : consensus.BIP34Hash = uint256{"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"};
95 : 1286 : consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
96 : 1286 : consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
97 : 1286 : consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
98 : 1286 : consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
99 : 1286 : consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
100 : 1286 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
101 : 1286 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
102 : 1286 : consensus.nPowTargetSpacing = 10 * 60;
103 : 1286 : consensus.fPowAllowMinDifficultyBlocks = false;
104 : 1286 : consensus.enforce_BIP94 = false;
105 : 1286 : consensus.fPowNoRetargeting = false;
106 [ + - ]: 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
107 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
108 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
109 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
110 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
111 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
112 : :
113 : : // Deployment of Taproot (BIPs 340-342)
114 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
115 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
116 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
117 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
118 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
119 : 1286 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
120 : :
121 : 1286 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000dee8e2a309ad8a9820433c68"};
122 : 1286 : consensus.defaultAssumeValid = uint256{"00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb"}; // 912683
123 : :
124 : : /**
125 : : * The message start string is designed to be unlikely to occur in normal data.
126 : : * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
127 : : * a large 32-bit integer with any alignment.
128 : : */
129 : 1286 : pchMessageStart[0] = 0xf9;
130 : 1286 : pchMessageStart[1] = 0xbe;
131 : 1286 : pchMessageStart[2] = 0xb4;
132 : 1286 : pchMessageStart[3] = 0xd9;
133 : 1286 : nDefaultPort = 8333;
134 : 1286 : nPruneAfterHeight = 100000;
135 : 1286 : m_assumed_blockchain_size = 810;
136 : 1286 : m_assumed_chain_state_size = 14;
137 : :
138 [ + - ]: 1286 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
139 [ + - ]: 1286 : consensus.hashGenesisBlock = genesis.GetHash();
140 [ - + ]: 1286 : assert(consensus.hashGenesisBlock == uint256{"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"});
141 [ - + ]: 1286 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
142 : :
143 : : // Note that of those which support the service bits prefix, most only support a subset of
144 : : // possible options.
145 : : // This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
146 : : // service bits we want, but we should get them updated to support all service bits wanted by any
147 : : // release ASAP to avoid it where possible.
148 [ + - ]: 1286 : vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
149 [ + - ]: 1286 : vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
150 [ + - ]: 1286 : vSeeds.emplace_back("dnsseed.bitcoin.dashjr-list-of-p2p-nodes.us."); // Luke Dashjr
151 [ + - ]: 1286 : vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
152 [ + - ]: 1286 : vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
153 [ + - ]: 1286 : vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
154 [ + - ]: 1286 : vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
155 [ + - ]: 1286 : vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
156 [ + - ]: 1286 : 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
157 : :
158 [ + - + - ]: 1286 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
159 [ + - + - ]: 1286 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
160 [ + - + - ]: 1286 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
161 [ + - ]: 1286 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
162 [ + - ]: 1286 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
163 : :
164 [ + - ]: 1286 : bech32_hrp = "bc";
165 : :
166 [ + - + - ]: 1286 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
167 : :
168 : 1286 : fDefaultConsistencyChecks = false;
169 : 1286 : m_is_mockable_chain = false;
170 : :
171 : 1286 : m_assumeutxo_data = {
172 : : {
173 : : .height = 840'000,
174 : 1286 : .hash_serialized = AssumeutxoHash{uint256{"a2a5521b1b5ab65f67818e5e8eccabb7171a517f9e2382208f77687310768f96"}},
175 : : .m_chain_tx_count = 991032194,
176 : : .blockhash = consteval_ctor(uint256{"0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5"}),
177 : : },
178 : : {
179 : : .height = 880'000,
180 : 1286 : .hash_serialized = AssumeutxoHash{uint256{"dbd190983eaf433ef7c15f78a278ae42c00ef52e0fd2a54953782175fbadcea9"}},
181 : : .m_chain_tx_count = 1145604538,
182 : : .blockhash = consteval_ctor(uint256{"000000000000000000010b17283c3c400507969a9c2afd1dcf2082ec5cca2880"}),
183 : : },
184 : : {
185 : : .height = 910'000,
186 [ + - ]: 1286 : .hash_serialized = AssumeutxoHash{uint256{"4daf8a17b4902498c5787966a2b51c613acdab5df5db73f196fa59a4da2f1568"}},
187 : : .m_chain_tx_count = 1226586151,
188 : : .blockhash = consteval_ctor(uint256{"0000000000000000000108970acb9522ffd516eae17acddcb1bd16469194a821"}),
189 : : }
190 [ + - ]: 1286 : };
191 : :
192 : 1286 : chainTxData = ChainTxData{
193 : : // Data from RPC: getchaintxstats 4096 00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb
194 : : .nTime = 1756722903,
195 : : .tx_count = 1235299397,
196 : : .dTxRate = 5.456290459519495,
197 : : };
198 : :
199 : : // Generated by headerssync-params.py on 2025-09-01.
200 : 1286 : m_headers_sync_params = HeadersSyncParams{
201 : : .commitment_period = 632,
202 : : .redownload_buffer_size = 15009, // 15009/632 = ~23.7 commitments
203 : : };
204 : 1286 : }
205 : : };
206 : :
207 : : /**
208 : : * Testnet (v3): public test network which is reset from time to time.
209 : : */
210 : 0 : class CTestNetParams : public CChainParams {
211 : : public:
212 : 698 : CTestNetParams() {
213 : 698 : m_chain_type = ChainType::TESTNET;
214 : 698 : consensus.signet_blocks = false;
215 [ - + ]: 698 : consensus.signet_challenge.clear();
216 : 698 : consensus.nSubsidyHalvingInterval = 210000;
217 : 698 : consensus.script_flag_exceptions.emplace( // BIP16 exception
218 [ + - ]: 698 : uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
219 : 698 : consensus.BIP34Height = 21111;
220 : 698 : consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
221 : 698 : consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
222 : 698 : consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
223 : 698 : consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
224 : 698 : consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
225 : 698 : consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
226 : 698 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
227 : 698 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
228 : 698 : consensus.nPowTargetSpacing = 10 * 60;
229 : 698 : consensus.fPowAllowMinDifficultyBlocks = true;
230 : 698 : consensus.enforce_BIP94 = false;
231 : 698 : consensus.fPowNoRetargeting = false;
232 [ + - ]: 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
233 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
234 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
235 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
236 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
237 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
238 : :
239 : : // Deployment of Taproot (BIPs 340-342)
240 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
241 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
242 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
243 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
244 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
245 : 698 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
246 : :
247 : 698 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000016dd270dd94fac1d7632"};
248 : 698 : consensus.defaultAssumeValid = uint256{"0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34"}; // 4550000
249 : :
250 : 698 : pchMessageStart[0] = 0x0b;
251 : 698 : pchMessageStart[1] = 0x11;
252 : 698 : pchMessageStart[2] = 0x09;
253 : 698 : pchMessageStart[3] = 0x07;
254 : 698 : nDefaultPort = 18333;
255 : 698 : nPruneAfterHeight = 1000;
256 : 698 : m_assumed_blockchain_size = 240;
257 : 698 : m_assumed_chain_state_size = 19;
258 : :
259 [ + - ]: 698 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
260 [ + - ]: 698 : consensus.hashGenesisBlock = genesis.GetHash();
261 [ - + ]: 698 : assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
262 [ - + ]: 698 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
263 : :
264 [ - + ]: 698 : vFixedSeeds.clear();
265 : 698 : vSeeds.clear();
266 : : // nodes with support for servicebits filtering should be at the top
267 [ + - ]: 698 : vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
268 [ + - ]: 698 : vSeeds.emplace_back("seed.tbtc.petertodd.net.");
269 [ + - ]: 698 : vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
270 [ + - ]: 698 : vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
271 [ + - ]: 698 : 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
272 : :
273 [ + - + - ]: 698 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
274 [ + - + - ]: 698 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
275 [ + - + - ]: 698 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
276 [ + - ]: 698 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
277 [ + - ]: 698 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
278 : :
279 [ + - ]: 698 : bech32_hrp = "tb";
280 : :
281 [ + - + - ]: 698 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
282 : :
283 : 698 : fDefaultConsistencyChecks = false;
284 : 698 : m_is_mockable_chain = false;
285 : :
286 : 698 : m_assumeutxo_data = {
287 : : {
288 : : .height = 2'500'000,
289 : 698 : .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}},
290 : : .m_chain_tx_count = 66484552,
291 : : .blockhash = consteval_ctor(uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"}),
292 : : }
293 [ + - ]: 698 : };
294 : :
295 : 698 : chainTxData = ChainTxData{
296 : : // Data from RPC: getchaintxstats 4096 0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34
297 : : .nTime = 1751816758,
298 : : .tx_count = 508468699,
299 : : .dTxRate = 7.172978845985714,
300 : : };
301 : :
302 : : // Generated by headerssync-params.py on 2025-09-03.
303 : 698 : m_headers_sync_params = HeadersSyncParams{
304 : : .commitment_period = 628,
305 : : .redownload_buffer_size = 13460, // 13460/628 = ~21.4 commitments
306 : : };
307 : 698 : }
308 : : };
309 : :
310 : : /**
311 : : * Testnet (v4): public test network which is reset from time to time.
312 : : */
313 : 0 : class CTestNet4Params : public CChainParams {
314 : : public:
315 : 665 : CTestNet4Params() {
316 : 665 : m_chain_type = ChainType::TESTNET4;
317 : 665 : consensus.signet_blocks = false;
318 [ - + ]: 665 : consensus.signet_challenge.clear();
319 : 665 : consensus.nSubsidyHalvingInterval = 210000;
320 : 665 : consensus.BIP34Height = 1;
321 : 665 : consensus.BIP34Hash = uint256{};
322 : 665 : consensus.BIP65Height = 1;
323 : 665 : consensus.BIP66Height = 1;
324 : 665 : consensus.CSVHeight = 1;
325 : 665 : consensus.SegwitHeight = 1;
326 : 665 : consensus.MinBIP9WarningHeight = 0;
327 : 665 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
328 : 665 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
329 : 665 : consensus.nPowTargetSpacing = 10 * 60;
330 : 665 : consensus.fPowAllowMinDifficultyBlocks = true;
331 : 665 : consensus.enforce_BIP94 = true;
332 : 665 : consensus.fPowNoRetargeting = false;
333 : :
334 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
335 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
336 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
337 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
338 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
339 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
340 : :
341 : : // Deployment of Taproot (BIPs 340-342)
342 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
343 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
344 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
345 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
346 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
347 : 665 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
348 : :
349 : 665 : consensus.nMinimumChainWork = uint256{"00000000000000000000000000000000000000000000034a4690fe592dc49c7c"};
350 : 665 : consensus.defaultAssumeValid = uint256{"000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b"}; // 91000
351 : :
352 : 665 : pchMessageStart[0] = 0x1c;
353 : 665 : pchMessageStart[1] = 0x16;
354 : 665 : pchMessageStart[2] = 0x3f;
355 : 665 : pchMessageStart[3] = 0x28;
356 : 665 : nDefaultPort = 48333;
357 : 665 : nPruneAfterHeight = 1000;
358 : 665 : m_assumed_blockchain_size = 22;
359 : 665 : m_assumed_chain_state_size = 2;
360 : :
361 : 665 : const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e";
362 [ + - ]: 665 : const CScript testnet4_genesis_script = CScript() << "000000000000000000000000000000000000000000000000000000000000000000"_hex << OP_CHECKSIG;
363 : 1330 : genesis = CreateGenesisBlock(testnet4_genesis_msg,
364 : : testnet4_genesis_script,
365 : : 1714777860,
366 : : 393743547,
367 : : 0x1d00ffff,
368 : : 1,
369 [ + - ]: 665 : 50 * COIN);
370 [ + - ]: 665 : consensus.hashGenesisBlock = genesis.GetHash();
371 [ - + ]: 665 : assert(consensus.hashGenesisBlock == uint256{"00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"});
372 [ - + ]: 665 : assert(genesis.hashMerkleRoot == uint256{"7aa0a7ae1e223414cb807e40cd57e667b718e42aaf9306db9102fe28912b7b4e"});
373 : :
374 [ - + ]: 665 : vFixedSeeds.clear();
375 : 665 : vSeeds.clear();
376 : : // nodes with support for servicebits filtering should be at the top
377 [ + - ]: 665 : vSeeds.emplace_back("seed.testnet4.bitcoin.sprovoost.nl."); // Sjors Provoost
378 [ + - ]: 665 : vSeeds.emplace_back("seed.testnet4.wiz.biz."); // Jason Maurice
379 : :
380 [ + - + - ]: 665 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
381 [ + - + - ]: 665 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
382 [ + - + - ]: 665 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
383 [ + - ]: 665 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
384 [ + - ]: 665 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
385 : :
386 [ + - ]: 665 : bech32_hrp = "tb";
387 : :
388 [ + - + - ]: 665 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_testnet4), std::end(chainparams_seed_testnet4));
389 : :
390 : 665 : fDefaultConsistencyChecks = false;
391 : 665 : m_is_mockable_chain = false;
392 : :
393 : 665 : m_assumeutxo_data = {
394 : : {
395 : : .height = 90'000,
396 : 665 : .hash_serialized = AssumeutxoHash{uint256{"784fb5e98241de66fdd429f4392155c9e7db5c017148e66e8fdbc95746f8b9b5"}},
397 : : .m_chain_tx_count = 11347043,
398 : : .blockhash = consteval_ctor(uint256{"0000000002ebe8bcda020e0dd6ccfbdfac531d2f6a81457191b99fc2df2dbe3b"}),
399 : : }
400 [ + - ]: 665 : };
401 : :
402 : 665 : chainTxData = ChainTxData{
403 : : // Data from RPC: getchaintxstats 4096 000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b
404 : : .nTime = 1752470331,
405 : : .tx_count = 11414302,
406 : : .dTxRate = 0.2842619757327476,
407 : : };
408 : :
409 : : // Generated by headerssync-params.py on 2025-09-03.
410 : 665 : m_headers_sync_params = HeadersSyncParams{
411 : : .commitment_period = 275,
412 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
413 : : };
414 : 665 : }
415 : : };
416 : :
417 : : /**
418 : : * Signet: test network with an additional consensus parameter (see BIP325).
419 : : */
420 : 0 : class SigNetParams : public CChainParams {
421 : : public:
422 : 735 : explicit SigNetParams(const SigNetOptions& options)
423 : 735 : {
424 : 735 : std::vector<uint8_t> bin;
425 [ - + ]: 735 : vFixedSeeds.clear();
426 : 735 : vSeeds.clear();
427 : :
428 [ + + ]: 735 : if (!options.challenge) {
429 [ + - ]: 1468 : bin = "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"_hex_v_u8;
430 [ + - + - ]: 734 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_signet), std::end(chainparams_seed_signet));
431 [ + - ]: 734 : vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
432 [ + - ]: 734 : 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
433 : :
434 : 734 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000000000000067d328e681a"};
435 : 734 : consensus.defaultAssumeValid = uint256{"000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e"}; // 267665
436 : 734 : m_assumed_blockchain_size = 20;
437 : 734 : m_assumed_chain_state_size = 4;
438 : 734 : chainTxData = ChainTxData{
439 : : // Data from RPC: getchaintxstats 4096 000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e
440 : : .nTime = 1756723017,
441 : : .tx_count = 26185472,
442 : : .dTxRate = 0.7452721495389969,
443 : : };
444 : : } else {
445 [ + - ]: 1 : bin = *options.challenge;
446 : 1 : consensus.nMinimumChainWork = uint256{};
447 : 1 : consensus.defaultAssumeValid = uint256{};
448 : 1 : m_assumed_blockchain_size = 0;
449 : 1 : m_assumed_chain_state_size = 0;
450 : 1 : chainTxData = ChainTxData{
451 : : 0,
452 : : 0,
453 : : 0,
454 : : };
455 [ - + + - : 2 : LogInfo("Signet with challenge %s", HexStr(bin));
+ - ]
456 : : }
457 : :
458 [ - + ]: 735 : if (options.seeds) {
459 [ # # ]: 0 : vSeeds = *options.seeds;
460 : : }
461 : :
462 : 735 : m_chain_type = ChainType::SIGNET;
463 : 735 : consensus.signet_blocks = true;
464 [ + - ]: 735 : consensus.signet_challenge.assign(bin.begin(), bin.end());
465 : 735 : consensus.nSubsidyHalvingInterval = 210000;
466 : 735 : consensus.BIP34Height = 1;
467 : 735 : consensus.BIP34Hash = uint256{};
468 : 735 : consensus.BIP65Height = 1;
469 : 735 : consensus.BIP66Height = 1;
470 : 735 : consensus.CSVHeight = 1;
471 : 735 : consensus.SegwitHeight = 1;
472 : 735 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
473 : 735 : consensus.nPowTargetSpacing = 10 * 60;
474 : 735 : consensus.fPowAllowMinDifficultyBlocks = false;
475 : 735 : consensus.enforce_BIP94 = false;
476 : 735 : consensus.fPowNoRetargeting = false;
477 : 735 : consensus.MinBIP9WarningHeight = 0;
478 : 735 : consensus.powLimit = uint256{"00000377ae000000000000000000000000000000000000000000000000000000"};
479 [ + - ]: 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
480 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
481 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
482 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
483 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
484 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
485 : :
486 : : // Activation of Taproot (BIPs 340-342)
487 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
488 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
489 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
490 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
491 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
492 : 735 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
493 : :
494 : : // message start is defined as the first 4 bytes of the sha256d of the block script
495 [ + - ]: 735 : HashWriter h{};
496 [ + - ]: 735 : h << consensus.signet_challenge;
497 [ + - ]: 735 : uint256 hash = h.GetHash();
498 : 735 : std::copy_n(hash.begin(), 4, pchMessageStart.begin());
499 : :
500 : 735 : nDefaultPort = 38333;
501 : 735 : nPruneAfterHeight = 1000;
502 : :
503 [ + - ]: 735 : genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
504 [ + - ]: 735 : consensus.hashGenesisBlock = genesis.GetHash();
505 [ - + ]: 735 : assert(consensus.hashGenesisBlock == uint256{"00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"});
506 [ - + ]: 735 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
507 : :
508 : 735 : m_assumeutxo_data = {
509 : : {
510 : : .height = 160'000,
511 : 735 : .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}},
512 : : .m_chain_tx_count = 2289496,
513 : : .blockhash = consteval_ctor(uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"}),
514 : : }
515 [ + - ]: 735 : };
516 : :
517 [ + - + - ]: 735 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
518 [ + - + - ]: 735 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
519 [ + - + - ]: 735 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
520 [ + - ]: 735 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
521 [ + - ]: 735 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
522 : :
523 [ + - ]: 735 : bech32_hrp = "tb";
524 : :
525 : 735 : fDefaultConsistencyChecks = false;
526 : 735 : m_is_mockable_chain = false;
527 : :
528 : : // Generated by headerssync-params.py on 2025-09-03.
529 : 735 : m_headers_sync_params = HeadersSyncParams{
530 : : .commitment_period = 390,
531 : : .redownload_buffer_size = 9584, // 9584/390 = ~24.6 commitments
532 : : };
533 : 735 : }
534 : : };
535 : :
536 : : /**
537 : : * Regression test: intended for private networks only. Has minimal difficulty to ensure that
538 : : * blocks can be found instantly.
539 : : */
540 : 0 : class CRegTestParams : public CChainParams
541 : : {
542 : : public:
543 : 823 : explicit CRegTestParams(const RegTestOptions& opts)
544 : 823 : {
545 : 823 : m_chain_type = ChainType::REGTEST;
546 : 823 : consensus.signet_blocks = false;
547 [ - + ]: 823 : consensus.signet_challenge.clear();
548 : 823 : consensus.nSubsidyHalvingInterval = 150;
549 : 823 : consensus.BIP34Height = 1; // Always active unless overridden
550 : 823 : consensus.BIP34Hash = uint256();
551 : 823 : consensus.BIP65Height = 1; // Always active unless overridden
552 : 823 : consensus.BIP66Height = 1; // Always active unless overridden
553 : 823 : consensus.CSVHeight = 1; // Always active unless overridden
554 : 823 : consensus.SegwitHeight = 0; // Always active unless overridden
555 : 823 : consensus.MinBIP9WarningHeight = 0;
556 : 823 : consensus.powLimit = uint256{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
557 : 823 : consensus.nPowTargetTimespan = 24 * 60 * 60; // one day
558 : 823 : consensus.nPowTargetSpacing = 10 * 60;
559 : 823 : consensus.fPowAllowMinDifficultyBlocks = true;
560 : 823 : consensus.enforce_BIP94 = opts.enforce_bip94;
561 : 823 : consensus.fPowNoRetargeting = true;
562 : :
563 [ + - ]: 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
564 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
565 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
566 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
567 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 108; // 75%
568 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 144; // Faster than normal for regtest (144 instead of 2016)
569 : :
570 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
571 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
572 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
573 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
574 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 108; // 75%
575 : 823 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 144;
576 : :
577 : 823 : consensus.nMinimumChainWork = uint256{};
578 : 823 : consensus.defaultAssumeValid = uint256{};
579 : :
580 : 823 : pchMessageStart[0] = 0xfa;
581 : 823 : pchMessageStart[1] = 0xbf;
582 : 823 : pchMessageStart[2] = 0xb5;
583 : 823 : pchMessageStart[3] = 0xda;
584 : 823 : nDefaultPort = 18444;
585 [ + - ]: 823 : nPruneAfterHeight = opts.fastprune ? 100 : 1000;
586 : 823 : m_assumed_blockchain_size = 0;
587 : 823 : m_assumed_chain_state_size = 0;
588 : :
589 [ + + - - : 825 : for (const auto& [dep, height] : opts.activation_heights) {
+ - - - ]
590 [ - - + - : 2 : switch (dep) {
- - ]
591 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_SEGWIT:
592 : 0 : consensus.SegwitHeight = int{height};
593 : 0 : break;
594 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB:
595 : 0 : consensus.BIP34Height = int{height};
596 : 0 : break;
597 : 2 : case Consensus::BuriedDeployment::DEPLOYMENT_DERSIG:
598 : 2 : consensus.BIP66Height = int{height};
599 : 2 : break;
600 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CLTV:
601 : 0 : consensus.BIP65Height = int{height};
602 : 0 : break;
603 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CSV:
604 : 0 : consensus.CSVHeight = int{height};
605 : 0 : break;
606 : : }
607 : : }
608 : :
609 [ + + ]: 825 : for (const auto& [deployment_pos, version_bits_params] : opts.version_bits_parameters) {
610 : 2 : consensus.vDeployments[deployment_pos].nStartTime = version_bits_params.start_time;
611 : 2 : consensus.vDeployments[deployment_pos].nTimeout = version_bits_params.timeout;
612 : 2 : consensus.vDeployments[deployment_pos].min_activation_height = version_bits_params.min_activation_height;
613 : : }
614 : :
615 [ + - ]: 823 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
616 [ + - ]: 823 : consensus.hashGenesisBlock = genesis.GetHash();
617 [ - + ]: 823 : assert(consensus.hashGenesisBlock == uint256{"0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"});
618 [ - + ]: 823 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
619 : :
620 [ - + ]: 823 : vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
621 : 823 : vSeeds.clear();
622 [ + - ]: 823 : vSeeds.emplace_back("dummySeed.invalid.");
623 : :
624 : 823 : fDefaultConsistencyChecks = true;
625 : 823 : m_is_mockable_chain = true;
626 : :
627 : 823 : m_assumeutxo_data = {
628 : : { // For use by unit tests
629 : : .height = 110,
630 : 823 : .hash_serialized = AssumeutxoHash{uint256{"b952555c8ab81fec46f3d4253b7af256d766ceb39fb7752b9d18cdf4a0141327"}},
631 : : .m_chain_tx_count = 111,
632 : : .blockhash = consteval_ctor(uint256{"6affe030b7965ab538f820a56ef56c8149b7dc1d1c144af57113be080db7c397"}),
633 : : },
634 : : {
635 : : // For use by fuzz target src/test/fuzz/utxo_snapshot.cpp
636 : : .height = 200,
637 : 823 : .hash_serialized = AssumeutxoHash{uint256{"17dcc016d188d16068907cdeb38b75691a118d43053b8cd6a25969419381d13a"}},
638 : : .m_chain_tx_count = 201,
639 : : .blockhash = consteval_ctor(uint256{"385901ccbd69dff6bbd00065d01fb8a9e464dede7cfe0372443884f9b1dcf6b9"}),
640 : : },
641 : : {
642 : : // For use by test/functional/feature_assumeutxo.py
643 : : .height = 299,
644 [ + - ]: 823 : .hash_serialized = AssumeutxoHash{uint256{"d2b051ff5e8eef46520350776f4100dd710a63447a8e01d917e92e79751a63e2"}},
645 : : .m_chain_tx_count = 334,
646 : : .blockhash = consteval_ctor(uint256{"7cc695046fec709f8c9394b6f928f81e81fd3ac20977bb68760fa1faa7916ea2"}),
647 : : },
648 [ + - ]: 823 : };
649 : :
650 : 823 : chainTxData = ChainTxData{
651 : : .nTime = 0,
652 : : .tx_count = 0,
653 : : .dTxRate = 0.001, // Set a non-zero rate to make it testable
654 : : };
655 : :
656 [ + - + - ]: 823 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
657 [ + - + - ]: 823 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
658 [ + - + - ]: 823 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
659 [ + - ]: 823 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
660 [ + - ]: 823 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
661 : :
662 [ + - ]: 823 : bech32_hrp = "bcrt";
663 : :
664 : : // Copied from Testnet4.
665 : 823 : m_headers_sync_params = HeadersSyncParams{
666 : : .commitment_period = 275,
667 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
668 : : };
669 : 823 : }
670 : : };
671 : :
672 : 735 : std::unique_ptr<const CChainParams> CChainParams::SigNet(const SigNetOptions& options)
673 : : {
674 : 735 : return std::make_unique<const SigNetParams>(options);
675 : : }
676 : :
677 : 823 : std::unique_ptr<const CChainParams> CChainParams::RegTest(const RegTestOptions& options)
678 : : {
679 : 823 : return std::make_unique<const CRegTestParams>(options);
680 : : }
681 : :
682 : 1286 : std::unique_ptr<const CChainParams> CChainParams::Main()
683 : : {
684 : 1286 : return std::make_unique<const CMainParams>();
685 : : }
686 : :
687 : 698 : std::unique_ptr<const CChainParams> CChainParams::TestNet()
688 : : {
689 : 698 : return std::make_unique<const CTestNetParams>();
690 : : }
691 : :
692 : 665 : std::unique_ptr<const CChainParams> CChainParams::TestNet4()
693 : : {
694 : 665 : return std::make_unique<const CTestNet4Params>();
695 : : }
696 : :
697 : 12 : std::vector<int> CChainParams::GetAvailableSnapshotHeights() const
698 : : {
699 : 12 : std::vector<int> heights;
700 [ - + + - ]: 12 : heights.reserve(m_assumeutxo_data.size());
701 : :
702 [ + + ]: 48 : for (const auto& data : m_assumeutxo_data) {
703 [ + - ]: 36 : heights.emplace_back(data.height);
704 : : }
705 : 12 : return heights;
706 : 0 : }
707 : :
708 : 0 : std::optional<ChainType> GetNetworkForMagic(const MessageStartChars& message)
709 : : {
710 : 0 : const auto mainnet_msg = CChainParams::Main()->MessageStart();
711 : 0 : const auto testnet_msg = CChainParams::TestNet()->MessageStart();
712 : 0 : const auto testnet4_msg = CChainParams::TestNet4()->MessageStart();
713 : 0 : const auto regtest_msg = CChainParams::RegTest({})->MessageStart();
714 [ # # ]: 0 : const auto signet_msg = CChainParams::SigNet({})->MessageStart();
715 : :
716 [ # # ]: 0 : if (std::ranges::equal(message, mainnet_msg)) {
717 : 0 : return ChainType::MAIN;
718 [ # # ]: 0 : } else if (std::ranges::equal(message, testnet_msg)) {
719 : 0 : return ChainType::TESTNET;
720 [ # # ]: 0 : } else if (std::ranges::equal(message, testnet4_msg)) {
721 : 0 : return ChainType::TESTNET4;
722 [ # # ]: 0 : } else if (std::ranges::equal(message, regtest_msg)) {
723 : 0 : return ChainType::REGTEST;
724 [ # # ]: 0 : } else if (std::ranges::equal(message, signet_msg)) {
725 : 0 : return ChainType::SIGNET;
726 : : }
727 : 0 : return std::nullopt;
728 [ # # ]: 0 : }
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