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 : 8760 : 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 : 8760 : CMutableTransaction txNew;
43 : 8760 : txNew.version = 1;
44 [ + - ]: 8760 : txNew.vin.resize(1);
45 [ + - ]: 8760 : txNew.vout.resize(1);
46 [ + - + - : 17520 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ - ]
47 : 8760 : txNew.vout[0].nValue = genesisReward;
48 : 8760 : txNew.vout[0].scriptPubKey = genesisOutputScript;
49 : :
50 : 8760 : CBlock genesis;
51 : 8760 : genesis.nTime = nTime;
52 : 8760 : genesis.nBits = nBits;
53 : 8760 : genesis.nNonce = nNonce;
54 : 8760 : genesis.nVersion = nVersion;
55 [ + - + - : 17520 : genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
- + ]
56 : 8760 : genesis.hashPrevBlock.SetNull();
57 [ + - ]: 8760 : genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
58 : 8760 : return genesis;
59 : 8760 : }
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 : 7277 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
73 : : {
74 : 7277 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
75 [ + - ]: 7277 : const CScript genesisOutputScript = CScript() << "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"_hex << OP_CHECKSIG;
76 [ + - ]: 7277 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
77 : 7277 : }
78 : :
79 : : /**
80 : : * Main network on which people trade goods and services.
81 : : */
82 : 0 : class CMainParams : public CChainParams {
83 : : public:
84 : 1497 : CMainParams() {
85 : 1497 : m_chain_type = ChainType::MAIN;
86 : 1497 : consensus.signet_blocks = false;
87 [ - + ]: 1497 : consensus.signet_challenge.clear();
88 : 1497 : consensus.nSubsidyHalvingInterval = 210000;
89 : 1497 : consensus.script_flag_exceptions.emplace( // BIP16 exception
90 [ + - ]: 1497 : uint256{"00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22"}, SCRIPT_VERIFY_NONE);
91 : 1497 : consensus.script_flag_exceptions.emplace( // Taproot exception
92 [ + - ]: 1497 : uint256{"0000000000000000000f14c35b2d841e986ab5441de8c585d5ffe55ea1e395ad"}, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS);
93 : 1497 : consensus.BIP34Height = 227931;
94 : 1497 : consensus.BIP34Hash = uint256{"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"};
95 : 1497 : consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
96 : 1497 : consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
97 : 1497 : consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
98 : 1497 : consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
99 : 1497 : consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
100 : 1497 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
101 : 1497 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
102 : 1497 : consensus.nPowTargetSpacing = 10 * 60;
103 : 1497 : consensus.fPowAllowMinDifficultyBlocks = false;
104 : 1497 : consensus.enforce_BIP94 = false;
105 : 1497 : consensus.fPowNoRetargeting = false;
106 [ + - ]: 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
107 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
108 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
109 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
110 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
111 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
112 : :
113 : : // Deployment of Taproot (BIPs 340-342)
114 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
115 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
116 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
117 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
118 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
119 : 1497 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
120 : :
121 : 1497 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000dee8e2a309ad8a9820433c68"};
122 : 1497 : 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 : 1497 : pchMessageStart[0] = 0xf9;
130 : 1497 : pchMessageStart[1] = 0xbe;
131 : 1497 : pchMessageStart[2] = 0xb4;
132 : 1497 : pchMessageStart[3] = 0xd9;
133 : 1497 : nDefaultPort = 8333;
134 : 1497 : nPruneAfterHeight = 100000;
135 : 1497 : m_assumed_blockchain_size = 810;
136 : 1497 : m_assumed_chain_state_size = 14;
137 : :
138 [ + - ]: 1497 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
139 [ + - ]: 1497 : consensus.hashGenesisBlock = genesis.GetHash();
140 [ - + ]: 1497 : assert(consensus.hashGenesisBlock == uint256{"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"});
141 [ - + ]: 1497 : 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 [ + - ]: 1497 : vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
149 [ + - ]: 1497 : vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
150 [ + - ]: 1497 : vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
151 [ + - ]: 1497 : vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
152 [ + - ]: 1497 : vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
153 [ + - ]: 1497 : vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
154 [ + - ]: 1497 : vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
155 [ + - ]: 1497 : 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
156 : :
157 [ + - + - ]: 1497 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
158 [ + - + - ]: 1497 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
159 [ + - + - ]: 1497 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
160 [ + - ]: 1497 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
161 [ + - ]: 1497 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
162 : :
163 [ + - ]: 1497 : bech32_hrp = "bc";
164 : :
165 [ + - + - ]: 1497 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
166 : :
167 : 1497 : fDefaultConsistencyChecks = false;
168 : 1497 : m_is_mockable_chain = false;
169 : :
170 : 1497 : m_assumeutxo_data = {
171 : : {
172 : : .height = 840'000,
173 : 1497 : .hash_serialized = AssumeutxoHash{uint256{"a2a5521b1b5ab65f67818e5e8eccabb7171a517f9e2382208f77687310768f96"}},
174 : : .m_chain_tx_count = 991032194,
175 : : .blockhash = consteval_ctor(uint256{"0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5"}),
176 : : },
177 : : {
178 : : .height = 880'000,
179 : 1497 : .hash_serialized = AssumeutxoHash{uint256{"dbd190983eaf433ef7c15f78a278ae42c00ef52e0fd2a54953782175fbadcea9"}},
180 : : .m_chain_tx_count = 1145604538,
181 : : .blockhash = consteval_ctor(uint256{"000000000000000000010b17283c3c400507969a9c2afd1dcf2082ec5cca2880"}),
182 : : },
183 : : {
184 : : .height = 910'000,
185 [ + - ]: 1497 : .hash_serialized = AssumeutxoHash{uint256{"4daf8a17b4902498c5787966a2b51c613acdab5df5db73f196fa59a4da2f1568"}},
186 : : .m_chain_tx_count = 1226586151,
187 : : .blockhash = consteval_ctor(uint256{"0000000000000000000108970acb9522ffd516eae17acddcb1bd16469194a821"}),
188 : : }
189 [ + - ]: 1497 : };
190 : :
191 : 1497 : chainTxData = ChainTxData{
192 : : // Data from RPC: getchaintxstats 4096 00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb
193 : : .nTime = 1756722903,
194 : : .tx_count = 1235299397,
195 : : .dTxRate = 5.456290459519495,
196 : : };
197 : :
198 : : // Generated by headerssync-params.py on 2025-09-01.
199 : 1497 : m_headers_sync_params = HeadersSyncParams{
200 : : .commitment_period = 632,
201 : : .redownload_buffer_size = 15009, // 15009/632 = ~23.7 commitments
202 : : };
203 : 1497 : }
204 : : };
205 : :
206 : : /**
207 : : * Testnet (v3): public test network which is reset from time to time.
208 : : */
209 : 0 : class CTestNetParams : public CChainParams {
210 : : public:
211 : 1483 : CTestNetParams() {
212 : 1483 : m_chain_type = ChainType::TESTNET;
213 : 1483 : consensus.signet_blocks = false;
214 [ - + ]: 1483 : consensus.signet_challenge.clear();
215 : 1483 : consensus.nSubsidyHalvingInterval = 210000;
216 : 1483 : consensus.script_flag_exceptions.emplace( // BIP16 exception
217 [ + - ]: 1483 : uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
218 : 1483 : consensus.BIP34Height = 21111;
219 : 1483 : consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
220 : 1483 : consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
221 : 1483 : consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
222 : 1483 : consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
223 : 1483 : consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
224 : 1483 : consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
225 : 1483 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
226 : 1483 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
227 : 1483 : consensus.nPowTargetSpacing = 10 * 60;
228 : 1483 : consensus.fPowAllowMinDifficultyBlocks = true;
229 : 1483 : consensus.enforce_BIP94 = false;
230 : 1483 : consensus.fPowNoRetargeting = false;
231 [ + - ]: 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
232 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
233 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
234 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
235 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
236 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
237 : :
238 : : // Deployment of Taproot (BIPs 340-342)
239 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
240 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
241 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
242 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
243 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
244 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
245 : :
246 : 1483 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000016dd270dd94fac1d7632"};
247 : 1483 : consensus.defaultAssumeValid = uint256{"0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34"}; // 4550000
248 : :
249 : 1483 : pchMessageStart[0] = 0x0b;
250 : 1483 : pchMessageStart[1] = 0x11;
251 : 1483 : pchMessageStart[2] = 0x09;
252 : 1483 : pchMessageStart[3] = 0x07;
253 : 1483 : nDefaultPort = 18333;
254 : 1483 : nPruneAfterHeight = 1000;
255 : 1483 : m_assumed_blockchain_size = 240;
256 : 1483 : m_assumed_chain_state_size = 19;
257 : :
258 [ + - ]: 1483 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
259 [ + - ]: 1483 : consensus.hashGenesisBlock = genesis.GetHash();
260 [ - + ]: 1483 : assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
261 [ - + ]: 1483 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
262 : :
263 [ - + ]: 1483 : vFixedSeeds.clear();
264 : 1483 : vSeeds.clear();
265 : : // nodes with support for servicebits filtering should be at the top
266 [ + - ]: 1483 : vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
267 [ + - ]: 1483 : vSeeds.emplace_back("seed.tbtc.petertodd.net.");
268 [ + - ]: 1483 : vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
269 [ + - ]: 1483 : vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
270 [ + - ]: 1483 : 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
271 : :
272 [ + - + - ]: 1483 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
273 [ + - + - ]: 1483 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
274 [ + - + - ]: 1483 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
275 [ + - ]: 1483 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
276 [ + - ]: 1483 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
277 : :
278 [ + - ]: 1483 : bech32_hrp = "tb";
279 : :
280 [ + - + - ]: 1483 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
281 : :
282 : 1483 : fDefaultConsistencyChecks = false;
283 : 1483 : m_is_mockable_chain = false;
284 : :
285 : 1483 : m_assumeutxo_data = {
286 : : {
287 : : .height = 2'500'000,
288 : 1483 : .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}},
289 : : .m_chain_tx_count = 66484552,
290 : : .blockhash = consteval_ctor(uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"}),
291 : : }
292 [ + - ]: 1483 : };
293 : :
294 : 1483 : chainTxData = ChainTxData{
295 : : // Data from RPC: getchaintxstats 4096 0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34
296 : : .nTime = 1751816758,
297 : : .tx_count = 508468699,
298 : : .dTxRate = 7.172978845985714,
299 : : };
300 : :
301 : : // Generated by headerssync-params.py on 2025-09-03.
302 : 1483 : m_headers_sync_params = HeadersSyncParams{
303 : : .commitment_period = 628,
304 : : .redownload_buffer_size = 13460, // 13460/628 = ~21.4 commitments
305 : : };
306 : 1483 : }
307 : : };
308 : :
309 : : /**
310 : : * Testnet (v4): public test network which is reset from time to time.
311 : : */
312 : 0 : class CTestNet4Params : public CChainParams {
313 : : public:
314 : 1483 : CTestNet4Params() {
315 : 1483 : m_chain_type = ChainType::TESTNET4;
316 : 1483 : consensus.signet_blocks = false;
317 [ - + ]: 1483 : consensus.signet_challenge.clear();
318 : 1483 : consensus.nSubsidyHalvingInterval = 210000;
319 : 1483 : consensus.BIP34Height = 1;
320 : 1483 : consensus.BIP34Hash = uint256{};
321 : 1483 : consensus.BIP65Height = 1;
322 : 1483 : consensus.BIP66Height = 1;
323 : 1483 : consensus.CSVHeight = 1;
324 : 1483 : consensus.SegwitHeight = 1;
325 : 1483 : consensus.MinBIP9WarningHeight = 0;
326 : 1483 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
327 : 1483 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
328 : 1483 : consensus.nPowTargetSpacing = 10 * 60;
329 : 1483 : consensus.fPowAllowMinDifficultyBlocks = true;
330 : 1483 : consensus.enforce_BIP94 = true;
331 : 1483 : consensus.fPowNoRetargeting = false;
332 : :
333 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
334 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
335 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
336 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
337 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
338 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
339 : :
340 : : // Deployment of Taproot (BIPs 340-342)
341 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
342 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
343 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
344 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
345 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
346 : 1483 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
347 : :
348 : 1483 : consensus.nMinimumChainWork = uint256{"00000000000000000000000000000000000000000000034a4690fe592dc49c7c"};
349 : 1483 : consensus.defaultAssumeValid = uint256{"000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b"}; // 91000
350 : :
351 : 1483 : pchMessageStart[0] = 0x1c;
352 : 1483 : pchMessageStart[1] = 0x16;
353 : 1483 : pchMessageStart[2] = 0x3f;
354 : 1483 : pchMessageStart[3] = 0x28;
355 : 1483 : nDefaultPort = 48333;
356 : 1483 : nPruneAfterHeight = 1000;
357 : 1483 : m_assumed_blockchain_size = 22;
358 : 1483 : m_assumed_chain_state_size = 2;
359 : :
360 : 1483 : const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e";
361 [ + - ]: 1483 : const CScript testnet4_genesis_script = CScript() << "000000000000000000000000000000000000000000000000000000000000000000"_hex << OP_CHECKSIG;
362 : 2966 : genesis = CreateGenesisBlock(testnet4_genesis_msg,
363 : : testnet4_genesis_script,
364 : : 1714777860,
365 : : 393743547,
366 : : 0x1d00ffff,
367 : : 1,
368 [ + - ]: 1483 : 50 * COIN);
369 [ + - ]: 1483 : consensus.hashGenesisBlock = genesis.GetHash();
370 [ - + ]: 1483 : assert(consensus.hashGenesisBlock == uint256{"00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"});
371 [ - + ]: 1483 : assert(genesis.hashMerkleRoot == uint256{"7aa0a7ae1e223414cb807e40cd57e667b718e42aaf9306db9102fe28912b7b4e"});
372 : :
373 [ - + ]: 1483 : vFixedSeeds.clear();
374 : 1483 : vSeeds.clear();
375 : : // nodes with support for servicebits filtering should be at the top
376 [ + - ]: 1483 : vSeeds.emplace_back("seed.testnet4.bitcoin.sprovoost.nl."); // Sjors Provoost
377 [ + - ]: 1483 : vSeeds.emplace_back("seed.testnet4.wiz.biz."); // Jason Maurice
378 : :
379 [ + - + - ]: 1483 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
380 [ + - + - ]: 1483 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
381 [ + - + - ]: 1483 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
382 [ + - ]: 1483 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
383 [ + - ]: 1483 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
384 : :
385 [ + - ]: 1483 : bech32_hrp = "tb";
386 : :
387 [ + - + - ]: 1483 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_testnet4), std::end(chainparams_seed_testnet4));
388 : :
389 : 1483 : fDefaultConsistencyChecks = false;
390 : 1483 : m_is_mockable_chain = false;
391 : :
392 : 1483 : m_assumeutxo_data = {
393 : : {
394 : : .height = 90'000,
395 : 1483 : .hash_serialized = AssumeutxoHash{uint256{"784fb5e98241de66fdd429f4392155c9e7db5c017148e66e8fdbc95746f8b9b5"}},
396 : : .m_chain_tx_count = 11347043,
397 : : .blockhash = consteval_ctor(uint256{"0000000002ebe8bcda020e0dd6ccfbdfac531d2f6a81457191b99fc2df2dbe3b"}),
398 : : }
399 [ + - ]: 1483 : };
400 : :
401 : 1483 : chainTxData = ChainTxData{
402 : : // Data from RPC: getchaintxstats 4096 000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b
403 : : .nTime = 1752470331,
404 : : .tx_count = 11414302,
405 : : .dTxRate = 0.2842619757327476,
406 : : };
407 : :
408 : : // Generated by headerssync-params.py on 2025-09-03.
409 : 1483 : m_headers_sync_params = HeadersSyncParams{
410 : : .commitment_period = 275,
411 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
412 : : };
413 : 1483 : }
414 : : };
415 : :
416 : : /**
417 : : * Signet: test network with an additional consensus parameter (see BIP325).
418 : : */
419 : 0 : class SigNetParams : public CChainParams {
420 : : public:
421 : 1484 : explicit SigNetParams(const SigNetOptions& options)
422 : 1484 : {
423 : 1484 : std::vector<uint8_t> bin;
424 [ - + ]: 1484 : vFixedSeeds.clear();
425 : 1484 : vSeeds.clear();
426 : :
427 [ + - ]: 1484 : if (!options.challenge) {
428 [ + - ]: 2968 : bin = "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"_hex_v_u8;
429 [ + - + - ]: 1484 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_signet), std::end(chainparams_seed_signet));
430 [ + - ]: 1484 : vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
431 [ + - ]: 1484 : 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
432 : :
433 : 1484 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000000000000067d328e681a"};
434 : 1484 : consensus.defaultAssumeValid = uint256{"000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e"}; // 267665
435 : 1484 : m_assumed_blockchain_size = 20;
436 : 1484 : m_assumed_chain_state_size = 4;
437 : 1484 : chainTxData = ChainTxData{
438 : : // Data from RPC: getchaintxstats 4096 000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e
439 : : .nTime = 1756723017,
440 : : .tx_count = 26185472,
441 : : .dTxRate = 0.7452721495389969,
442 : : };
443 : : } else {
444 [ # # ]: 0 : bin = *options.challenge;
445 : 0 : consensus.nMinimumChainWork = uint256{};
446 : 0 : consensus.defaultAssumeValid = uint256{};
447 : 0 : m_assumed_blockchain_size = 0;
448 : 0 : m_assumed_chain_state_size = 0;
449 : 0 : chainTxData = ChainTxData{
450 : : 0,
451 : : 0,
452 : : 0,
453 : : };
454 [ # # # # : 0 : LogInfo("Signet with challenge %s", HexStr(bin));
# # ]
455 : : }
456 : :
457 [ - + ]: 1484 : if (options.seeds) {
458 [ # # ]: 0 : vSeeds = *options.seeds;
459 : : }
460 : :
461 : 1484 : m_chain_type = ChainType::SIGNET;
462 : 1484 : consensus.signet_blocks = true;
463 [ + - ]: 1484 : consensus.signet_challenge.assign(bin.begin(), bin.end());
464 : 1484 : consensus.nSubsidyHalvingInterval = 210000;
465 : 1484 : consensus.BIP34Height = 1;
466 : 1484 : consensus.BIP34Hash = uint256{};
467 : 1484 : consensus.BIP65Height = 1;
468 : 1484 : consensus.BIP66Height = 1;
469 : 1484 : consensus.CSVHeight = 1;
470 : 1484 : consensus.SegwitHeight = 1;
471 : 1484 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
472 : 1484 : consensus.nPowTargetSpacing = 10 * 60;
473 : 1484 : consensus.fPowAllowMinDifficultyBlocks = false;
474 : 1484 : consensus.enforce_BIP94 = false;
475 : 1484 : consensus.fPowNoRetargeting = false;
476 : 1484 : consensus.MinBIP9WarningHeight = 0;
477 : 1484 : consensus.powLimit = uint256{"00000377ae000000000000000000000000000000000000000000000000000000"};
478 [ + - ]: 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
479 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
480 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
481 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
482 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
483 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
484 : :
485 : : // Activation of Taproot (BIPs 340-342)
486 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
487 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
488 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
489 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
490 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
491 : 1484 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
492 : :
493 : : // message start is defined as the first 4 bytes of the sha256d of the block script
494 [ + - ]: 1484 : HashWriter h{};
495 [ + - ]: 1484 : h << consensus.signet_challenge;
496 [ + - ]: 1484 : uint256 hash = h.GetHash();
497 : 1484 : std::copy_n(hash.begin(), 4, pchMessageStart.begin());
498 : :
499 : 1484 : nDefaultPort = 38333;
500 : 1484 : nPruneAfterHeight = 1000;
501 : :
502 [ + - ]: 1484 : genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
503 [ + - ]: 1484 : consensus.hashGenesisBlock = genesis.GetHash();
504 [ - + ]: 1484 : assert(consensus.hashGenesisBlock == uint256{"00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"});
505 [ - + ]: 1484 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
506 : :
507 : 1484 : m_assumeutxo_data = {
508 : : {
509 : : .height = 160'000,
510 : 1484 : .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}},
511 : : .m_chain_tx_count = 2289496,
512 : : .blockhash = consteval_ctor(uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"}),
513 : : }
514 [ + - ]: 1484 : };
515 : :
516 [ + - + - ]: 1484 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
517 [ + - + - ]: 1484 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
518 [ + - + - ]: 1484 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
519 [ + - ]: 1484 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
520 [ + - ]: 1484 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
521 : :
522 [ + - ]: 1484 : bech32_hrp = "tb";
523 : :
524 : 1484 : fDefaultConsistencyChecks = false;
525 : 1484 : m_is_mockable_chain = false;
526 : :
527 : : // Generated by headerssync-params.py on 2025-09-03.
528 : 1484 : m_headers_sync_params = HeadersSyncParams{
529 : : .commitment_period = 390,
530 : : .redownload_buffer_size = 9584, // 9584/390 = ~24.6 commitments
531 : : };
532 : 1484 : }
533 : : };
534 : :
535 : : /**
536 : : * Regression test: intended for private networks only. Has minimal difficulty to ensure that
537 : : * blocks can be found instantly.
538 : : */
539 : 0 : class CRegTestParams : public CChainParams
540 : : {
541 : : public:
542 : 2813 : explicit CRegTestParams(const RegTestOptions& opts)
543 : 2813 : {
544 : 2813 : m_chain_type = ChainType::REGTEST;
545 : 2813 : consensus.signet_blocks = false;
546 [ - + ]: 2813 : consensus.signet_challenge.clear();
547 : 2813 : consensus.nSubsidyHalvingInterval = 150;
548 : 2813 : consensus.BIP34Height = 1; // Always active unless overridden
549 : 2813 : consensus.BIP34Hash = uint256();
550 : 2813 : consensus.BIP65Height = 1; // Always active unless overridden
551 : 2813 : consensus.BIP66Height = 1; // Always active unless overridden
552 : 2813 : consensus.CSVHeight = 1; // Always active unless overridden
553 : 2813 : consensus.SegwitHeight = 0; // Always active unless overridden
554 : 2813 : consensus.MinBIP9WarningHeight = 0;
555 : 2813 : consensus.powLimit = uint256{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
556 : 2813 : consensus.nPowTargetTimespan = 24 * 60 * 60; // one day
557 : 2813 : consensus.nPowTargetSpacing = 10 * 60;
558 : 2813 : consensus.fPowAllowMinDifficultyBlocks = true;
559 : 2813 : consensus.enforce_BIP94 = opts.enforce_bip94;
560 : 2813 : consensus.fPowNoRetargeting = true;
561 : :
562 [ + - ]: 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
563 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
564 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
565 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
566 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 108; // 75%
567 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 144; // Faster than normal for regtest (144 instead of 2016)
568 : :
569 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
570 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
571 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
572 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
573 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 108; // 75%
574 : 2813 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 144;
575 : :
576 : 2813 : consensus.nMinimumChainWork = uint256{};
577 : 2813 : consensus.defaultAssumeValid = uint256{};
578 : :
579 : 2813 : pchMessageStart[0] = 0xfa;
580 : 2813 : pchMessageStart[1] = 0xbf;
581 : 2813 : pchMessageStart[2] = 0xb5;
582 : 2813 : pchMessageStart[3] = 0xda;
583 : 2813 : nDefaultPort = 18444;
584 [ + - ]: 2813 : nPruneAfterHeight = opts.fastprune ? 100 : 1000;
585 : 2813 : m_assumed_blockchain_size = 0;
586 : 2813 : m_assumed_chain_state_size = 0;
587 : :
588 [ + + - + : 4047 : for (const auto& [dep, height] : opts.activation_heights) {
- - - - ]
589 [ - + - - : 1234 : switch (dep) {
- - ]
590 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_SEGWIT:
591 : 0 : consensus.SegwitHeight = int{height};
592 : 0 : break;
593 : 1234 : case Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB:
594 : 1234 : consensus.BIP34Height = int{height};
595 : 1234 : break;
596 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_DERSIG:
597 : 0 : consensus.BIP66Height = int{height};
598 : 0 : break;
599 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CLTV:
600 : 0 : consensus.BIP65Height = int{height};
601 : 0 : break;
602 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CSV:
603 : 0 : consensus.CSVHeight = int{height};
604 : 0 : break;
605 : : }
606 : : }
607 : :
608 [ - + ]: 2813 : for (const auto& [deployment_pos, version_bits_params] : opts.version_bits_parameters) {
609 : 0 : consensus.vDeployments[deployment_pos].nStartTime = version_bits_params.start_time;
610 : 0 : consensus.vDeployments[deployment_pos].nTimeout = version_bits_params.timeout;
611 : 0 : consensus.vDeployments[deployment_pos].min_activation_height = version_bits_params.min_activation_height;
612 : : }
613 : :
614 [ + - ]: 2813 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
615 [ + - ]: 2813 : consensus.hashGenesisBlock = genesis.GetHash();
616 [ - + ]: 2813 : assert(consensus.hashGenesisBlock == uint256{"0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"});
617 [ - + ]: 2813 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
618 : :
619 [ - + ]: 2813 : vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
620 : 2813 : vSeeds.clear();
621 [ + - ]: 2813 : vSeeds.emplace_back("dummySeed.invalid.");
622 : :
623 : 2813 : fDefaultConsistencyChecks = true;
624 : 2813 : m_is_mockable_chain = true;
625 : :
626 : 2813 : m_assumeutxo_data = {
627 : : { // For use by unit tests
628 : : .height = 110,
629 : 2813 : .hash_serialized = AssumeutxoHash{uint256{"b952555c8ab81fec46f3d4253b7af256d766ceb39fb7752b9d18cdf4a0141327"}},
630 : : .m_chain_tx_count = 111,
631 : : .blockhash = consteval_ctor(uint256{"6affe030b7965ab538f820a56ef56c8149b7dc1d1c144af57113be080db7c397"}),
632 : : },
633 : : {
634 : : // For use by fuzz target src/test/fuzz/utxo_snapshot.cpp
635 : : .height = 200,
636 : 2813 : .hash_serialized = AssumeutxoHash{uint256{"17dcc016d188d16068907cdeb38b75691a118d43053b8cd6a25969419381d13a"}},
637 : : .m_chain_tx_count = 201,
638 : : .blockhash = consteval_ctor(uint256{"385901ccbd69dff6bbd00065d01fb8a9e464dede7cfe0372443884f9b1dcf6b9"}),
639 : : },
640 : : {
641 : : // For use by test/functional/feature_assumeutxo.py
642 : : .height = 299,
643 [ + - ]: 2813 : .hash_serialized = AssumeutxoHash{uint256{"d2b051ff5e8eef46520350776f4100dd710a63447a8e01d917e92e79751a63e2"}},
644 : : .m_chain_tx_count = 334,
645 : : .blockhash = consteval_ctor(uint256{"7cc695046fec709f8c9394b6f928f81e81fd3ac20977bb68760fa1faa7916ea2"}),
646 : : },
647 [ + - ]: 2813 : };
648 : :
649 : 2813 : chainTxData = ChainTxData{
650 : : .nTime = 0,
651 : : .tx_count = 0,
652 : : .dTxRate = 0.001, // Set a non-zero rate to make it testable
653 : : };
654 : :
655 [ + - + - ]: 2813 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
656 [ + - + - ]: 2813 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
657 [ + - + - ]: 2813 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
658 [ + - ]: 2813 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
659 [ + - ]: 2813 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
660 : :
661 [ + - ]: 2813 : bech32_hrp = "bcrt";
662 : :
663 : : // Copied from Testnet4.
664 : 2813 : m_headers_sync_params = HeadersSyncParams{
665 : : .commitment_period = 275,
666 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
667 : : };
668 : 2813 : }
669 : : };
670 : :
671 : 1484 : std::unique_ptr<const CChainParams> CChainParams::SigNet(const SigNetOptions& options)
672 : : {
673 : 1484 : return std::make_unique<const SigNetParams>(options);
674 : : }
675 : :
676 : 2813 : std::unique_ptr<const CChainParams> CChainParams::RegTest(const RegTestOptions& options)
677 : : {
678 : 2813 : return std::make_unique<const CRegTestParams>(options);
679 : : }
680 : :
681 : 1497 : std::unique_ptr<const CChainParams> CChainParams::Main()
682 : : {
683 : 1497 : return std::make_unique<const CMainParams>();
684 : : }
685 : :
686 : 1483 : std::unique_ptr<const CChainParams> CChainParams::TestNet()
687 : : {
688 : 1483 : return std::make_unique<const CTestNetParams>();
689 : : }
690 : :
691 : 1483 : std::unique_ptr<const CChainParams> CChainParams::TestNet4()
692 : : {
693 : 1483 : return std::make_unique<const CTestNet4Params>();
694 : : }
695 : :
696 : 244 : std::vector<int> CChainParams::GetAvailableSnapshotHeights() const
697 : : {
698 : 244 : std::vector<int> heights;
699 [ - + + - ]: 244 : heights.reserve(m_assumeutxo_data.size());
700 : :
701 [ + + ]: 976 : for (const auto& data : m_assumeutxo_data) {
702 [ + - ]: 732 : heights.emplace_back(data.height);
703 : : }
704 : 244 : return heights;
705 : 0 : }
706 : :
707 : 163 : std::optional<ChainType> GetNetworkForMagic(const MessageStartChars& message)
708 : : {
709 : 163 : const auto mainnet_msg = CChainParams::Main()->MessageStart();
710 : 163 : const auto testnet_msg = CChainParams::TestNet()->MessageStart();
711 : 163 : const auto testnet4_msg = CChainParams::TestNet4()->MessageStart();
712 : 163 : const auto regtest_msg = CChainParams::RegTest({})->MessageStart();
713 [ + - ]: 163 : const auto signet_msg = CChainParams::SigNet({})->MessageStart();
714 : :
715 [ + + ]: 163 : if (std::ranges::equal(message, mainnet_msg)) {
716 : 21 : return ChainType::MAIN;
717 [ + + ]: 142 : } else if (std::ranges::equal(message, testnet_msg)) {
718 : 13 : return ChainType::TESTNET;
719 [ + + ]: 129 : } else if (std::ranges::equal(message, testnet4_msg)) {
720 : 19 : return ChainType::TESTNET4;
721 [ + + ]: 110 : } else if (std::ranges::equal(message, regtest_msg)) {
722 : 66 : return ChainType::REGTEST;
723 [ + + ]: 44 : } else if (std::ranges::equal(message, signet_msg)) {
724 : 13 : return ChainType::SIGNET;
725 : : }
726 : 31 : return std::nullopt;
727 [ + - ]: 163 : }
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