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 <logging.h>
16 : : #include <primitives/block.h>
17 : : #include <primitives/transaction.h>
18 : : #include <script/interpreter.h>
19 : : #include <script/script.h>
20 : : #include <uint256.h>
21 : : #include <util/chaintype.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 : : // Workaround MSVC bug triggering C7595 when calling consteval constructors in
37 : : // initializer lists.
38 : : // https://developercommunity.visualstudio.com/t/Bogus-C7595-error-on-valid-C20-code/10906093
39 : : #if defined(_MSC_VER)
40 : : auto consteval_ctor(auto&& input) { return input; }
41 : : #else
42 : : #define consteval_ctor(input) (input)
43 : : #endif
44 : :
45 : 9689 : static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
46 : : {
47 : 9689 : CMutableTransaction txNew;
48 : 9689 : txNew.version = 1;
49 [ + - ]: 9689 : txNew.vin.resize(1);
50 [ + - ]: 9689 : txNew.vout.resize(1);
51 [ + - + - : 19378 : txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ - ]
52 : 9689 : txNew.vout[0].nValue = genesisReward;
53 : 9689 : txNew.vout[0].scriptPubKey = genesisOutputScript;
54 : :
55 : 9689 : CBlock genesis;
56 : 9689 : genesis.nTime = nTime;
57 : 9689 : genesis.nBits = nBits;
58 : 9689 : genesis.nNonce = nNonce;
59 : 9689 : genesis.nVersion = nVersion;
60 [ + - + - : 19378 : genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
- + ]
61 : 9689 : genesis.hashPrevBlock.SetNull();
62 [ + - ]: 9689 : genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
63 : 9689 : return genesis;
64 : 9689 : }
65 : :
66 : : /**
67 : : * Build the genesis block. Note that the output of its generation
68 : : * transaction cannot be spent since it did not originally exist in the
69 : : * database.
70 : : *
71 : : * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
72 : : * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
73 : : * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
74 : : * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
75 : : * vMerkleTree: 4a5e1e
76 : : */
77 : 8051 : static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
78 : : {
79 : 8051 : const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
80 [ + - ]: 8051 : const CScript genesisOutputScript = CScript() << "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"_hex << OP_CHECKSIG;
81 [ + - ]: 8051 : return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
82 : 8051 : }
83 : :
84 : : /**
85 : : * Main network on which people trade goods and services.
86 : : */
87 : 0 : class CMainParams : public CChainParams {
88 : : public:
89 : 1652 : CMainParams() {
90 : 1652 : m_chain_type = ChainType::MAIN;
91 : 1652 : consensus.signet_blocks = false;
92 [ - + ]: 1652 : consensus.signet_challenge.clear();
93 : 1652 : consensus.nSubsidyHalvingInterval = 210000;
94 : 1652 : consensus.script_flag_exceptions.emplace( // BIP16 exception
95 [ + - ]: 1652 : uint256{"00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22"}, SCRIPT_VERIFY_NONE);
96 : 1652 : consensus.script_flag_exceptions.emplace( // Taproot exception
97 [ + - ]: 1652 : uint256{"0000000000000000000f14c35b2d841e986ab5441de8c585d5ffe55ea1e395ad"}, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS);
98 : 1652 : consensus.BIP34Height = 227931;
99 : 1652 : consensus.BIP34Hash = uint256{"000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"};
100 : 1652 : consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
101 : 1652 : consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
102 : 1652 : consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
103 : 1652 : consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
104 : 1652 : consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
105 : 1652 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
106 : 1652 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
107 : 1652 : consensus.nPowTargetSpacing = 10 * 60;
108 : 1652 : consensus.fPowAllowMinDifficultyBlocks = false;
109 : 1652 : consensus.enforce_BIP94 = false;
110 : 1652 : consensus.fPowNoRetargeting = false;
111 [ + - ]: 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
112 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
113 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
114 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
115 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
116 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
117 : :
118 : : // Deployment of Taproot (BIPs 340-342)
119 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
120 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
121 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
122 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
123 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
124 : 1652 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
125 : :
126 : 1652 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000dee8e2a309ad8a9820433c68"};
127 : 1652 : consensus.defaultAssumeValid = uint256{"00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb"}; // 912683
128 : :
129 : : /**
130 : : * The message start string is designed to be unlikely to occur in normal data.
131 : : * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
132 : : * a large 32-bit integer with any alignment.
133 : : */
134 : 1652 : pchMessageStart[0] = 0xf9;
135 : 1652 : pchMessageStart[1] = 0xbe;
136 : 1652 : pchMessageStart[2] = 0xb4;
137 : 1652 : pchMessageStart[3] = 0xd9;
138 : 1652 : nDefaultPort = 8333;
139 : 1652 : nPruneAfterHeight = 100000;
140 : 1652 : m_assumed_blockchain_size = 810;
141 : 1652 : m_assumed_chain_state_size = 14;
142 : :
143 [ + - ]: 1652 : genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
144 [ + - ]: 1652 : consensus.hashGenesisBlock = genesis.GetHash();
145 [ - + ]: 1652 : assert(consensus.hashGenesisBlock == uint256{"000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"});
146 [ - + ]: 1652 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
147 : :
148 : : // Note that of those which support the service bits prefix, most only support a subset of
149 : : // possible options.
150 : : // This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
151 : : // service bits we want, but we should get them updated to support all service bits wanted by any
152 : : // release ASAP to avoid it where possible.
153 [ + - ]: 1652 : vSeeds.emplace_back("seed.bitcoin.sipa.be."); // Pieter Wuille, only supports x1, x5, x9, and xd
154 [ + - ]: 1652 : vSeeds.emplace_back("dnsseed.bluematt.me."); // Matt Corallo, only supports x9
155 [ + - ]: 1652 : vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch."); // Jonas Schnelli, only supports x1, x5, x9, and xd
156 [ + - ]: 1652 : vSeeds.emplace_back("seed.btc.petertodd.net."); // Peter Todd, only supports x1, x5, x9, and xd
157 [ + - ]: 1652 : vSeeds.emplace_back("seed.bitcoin.sprovoost.nl."); // Sjors Provoost
158 [ + - ]: 1652 : vSeeds.emplace_back("dnsseed.emzy.de."); // Stephan Oeste
159 [ + - ]: 1652 : vSeeds.emplace_back("seed.bitcoin.wiz.biz."); // Jason Maurice
160 [ + - ]: 1652 : 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
161 : :
162 [ + - + - ]: 1652 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
163 [ + - + - ]: 1652 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
164 [ + - + - ]: 1652 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
165 [ + - ]: 1652 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
166 [ + - ]: 1652 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
167 : :
168 [ + - ]: 1652 : bech32_hrp = "bc";
169 : :
170 [ + - + - ]: 1652 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_main), std::end(chainparams_seed_main));
171 : :
172 : 1652 : fDefaultConsistencyChecks = false;
173 : 1652 : m_is_mockable_chain = false;
174 : :
175 : 1652 : m_assumeutxo_data = {
176 : : {
177 : : .height = 840'000,
178 : 1652 : .hash_serialized = AssumeutxoHash{uint256{"a2a5521b1b5ab65f67818e5e8eccabb7171a517f9e2382208f77687310768f96"}},
179 : : .m_chain_tx_count = 991032194,
180 : : .blockhash = consteval_ctor(uint256{"0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5"}),
181 : : },
182 : : {
183 : : .height = 880'000,
184 : 1652 : .hash_serialized = AssumeutxoHash{uint256{"dbd190983eaf433ef7c15f78a278ae42c00ef52e0fd2a54953782175fbadcea9"}},
185 : : .m_chain_tx_count = 1145604538,
186 : : .blockhash = consteval_ctor(uint256{"000000000000000000010b17283c3c400507969a9c2afd1dcf2082ec5cca2880"}),
187 : : },
188 : : {
189 : : .height = 910'000,
190 [ + - ]: 1652 : .hash_serialized = AssumeutxoHash{uint256{"4daf8a17b4902498c5787966a2b51c613acdab5df5db73f196fa59a4da2f1568"}},
191 : : .m_chain_tx_count = 1226586151,
192 : : .blockhash = consteval_ctor(uint256{"0000000000000000000108970acb9522ffd516eae17acddcb1bd16469194a821"}),
193 : : }
194 [ + - ]: 1652 : };
195 : :
196 : 1652 : chainTxData = ChainTxData{
197 : : // Data from RPC: getchaintxstats 4096 00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb
198 : : .nTime = 1756722903,
199 : : .tx_count = 1235299397,
200 : : .dTxRate = 5.456290459519495,
201 : : };
202 : :
203 : : // Generated by headerssync-params.py on 2025-09-01.
204 : 1652 : m_headers_sync_params = HeadersSyncParams{
205 : : .commitment_period = 632,
206 : : .redownload_buffer_size = 15009, // 15009/632 = ~23.7 commitments
207 : : };
208 : 1652 : }
209 : : };
210 : :
211 : : /**
212 : : * Testnet (v3): public test network which is reset from time to time.
213 : : */
214 : 0 : class CTestNetParams : public CChainParams {
215 : : public:
216 : 1638 : CTestNetParams() {
217 : 1638 : m_chain_type = ChainType::TESTNET;
218 : 1638 : consensus.signet_blocks = false;
219 [ - + ]: 1638 : consensus.signet_challenge.clear();
220 : 1638 : consensus.nSubsidyHalvingInterval = 210000;
221 : 1638 : consensus.script_flag_exceptions.emplace( // BIP16 exception
222 [ + - ]: 1638 : uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
223 : 1638 : consensus.BIP34Height = 21111;
224 : 1638 : consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
225 : 1638 : consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
226 : 1638 : consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
227 : 1638 : consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
228 : 1638 : consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
229 : 1638 : consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
230 : 1638 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
231 : 1638 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
232 : 1638 : consensus.nPowTargetSpacing = 10 * 60;
233 : 1638 : consensus.fPowAllowMinDifficultyBlocks = true;
234 : 1638 : consensus.enforce_BIP94 = false;
235 : 1638 : consensus.fPowNoRetargeting = false;
236 [ + - ]: 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
237 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
238 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
239 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
240 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
241 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
242 : :
243 : : // Deployment of Taproot (BIPs 340-342)
244 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
245 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
246 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
247 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
248 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
249 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
250 : :
251 : 1638 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000016dd270dd94fac1d7632"};
252 : 1638 : consensus.defaultAssumeValid = uint256{"0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34"}; // 4550000
253 : :
254 : 1638 : pchMessageStart[0] = 0x0b;
255 : 1638 : pchMessageStart[1] = 0x11;
256 : 1638 : pchMessageStart[2] = 0x09;
257 : 1638 : pchMessageStart[3] = 0x07;
258 : 1638 : nDefaultPort = 18333;
259 : 1638 : nPruneAfterHeight = 1000;
260 : 1638 : m_assumed_blockchain_size = 240;
261 : 1638 : m_assumed_chain_state_size = 19;
262 : :
263 [ + - ]: 1638 : genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
264 [ + - ]: 1638 : consensus.hashGenesisBlock = genesis.GetHash();
265 [ - + ]: 1638 : assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
266 [ - + ]: 1638 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
267 : :
268 [ - + ]: 1638 : vFixedSeeds.clear();
269 : 1638 : vSeeds.clear();
270 : : // nodes with support for servicebits filtering should be at the top
271 [ + - ]: 1638 : vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
272 [ + - ]: 1638 : vSeeds.emplace_back("seed.tbtc.petertodd.net.");
273 [ + - ]: 1638 : vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
274 [ + - ]: 1638 : vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
275 [ + - ]: 1638 : 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
276 : :
277 [ + - + - ]: 1638 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
278 [ + - + - ]: 1638 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
279 [ + - + - ]: 1638 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
280 [ + - ]: 1638 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
281 [ + - ]: 1638 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
282 : :
283 [ + - ]: 1638 : bech32_hrp = "tb";
284 : :
285 [ + - + - ]: 1638 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_test), std::end(chainparams_seed_test));
286 : :
287 : 1638 : fDefaultConsistencyChecks = false;
288 : 1638 : m_is_mockable_chain = false;
289 : :
290 : 1638 : m_assumeutxo_data = {
291 : : {
292 : : .height = 2'500'000,
293 : 1638 : .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}},
294 : : .m_chain_tx_count = 66484552,
295 : : .blockhash = consteval_ctor(uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"}),
296 : : }
297 [ + - ]: 1638 : };
298 : :
299 : 1638 : chainTxData = ChainTxData{
300 : : // Data from RPC: getchaintxstats 4096 0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34
301 : : .nTime = 1751816758,
302 : : .tx_count = 508468699,
303 : : .dTxRate = 7.172978845985714,
304 : : };
305 : :
306 : : // Generated by headerssync-params.py on 2025-09-03.
307 : 1638 : m_headers_sync_params = HeadersSyncParams{
308 : : .commitment_period = 628,
309 : : .redownload_buffer_size = 13460, // 13460/628 = ~21.4 commitments
310 : : };
311 : 1638 : }
312 : : };
313 : :
314 : : /**
315 : : * Testnet (v4): public test network which is reset from time to time.
316 : : */
317 : 0 : class CTestNet4Params : public CChainParams {
318 : : public:
319 : 1638 : CTestNet4Params() {
320 : 1638 : m_chain_type = ChainType::TESTNET4;
321 : 1638 : consensus.signet_blocks = false;
322 [ - + ]: 1638 : consensus.signet_challenge.clear();
323 : 1638 : consensus.nSubsidyHalvingInterval = 210000;
324 : 1638 : consensus.BIP34Height = 1;
325 : 1638 : consensus.BIP34Hash = uint256{};
326 : 1638 : consensus.BIP65Height = 1;
327 : 1638 : consensus.BIP66Height = 1;
328 : 1638 : consensus.CSVHeight = 1;
329 : 1638 : consensus.SegwitHeight = 1;
330 : 1638 : consensus.MinBIP9WarningHeight = 0;
331 : 1638 : consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
332 : 1638 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
333 : 1638 : consensus.nPowTargetSpacing = 10 * 60;
334 : 1638 : consensus.fPowAllowMinDifficultyBlocks = true;
335 : 1638 : consensus.enforce_BIP94 = true;
336 : 1638 : consensus.fPowNoRetargeting = false;
337 : :
338 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
339 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
340 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
341 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
342 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
343 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
344 : :
345 : : // Deployment of Taproot (BIPs 340-342)
346 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
347 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
348 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
349 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
350 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75%
351 : 1638 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
352 : :
353 : 1638 : consensus.nMinimumChainWork = uint256{"00000000000000000000000000000000000000000000034a4690fe592dc49c7c"};
354 : 1638 : consensus.defaultAssumeValid = uint256{"000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b"}; // 91000
355 : :
356 : 1638 : pchMessageStart[0] = 0x1c;
357 : 1638 : pchMessageStart[1] = 0x16;
358 : 1638 : pchMessageStart[2] = 0x3f;
359 : 1638 : pchMessageStart[3] = 0x28;
360 : 1638 : nDefaultPort = 48333;
361 : 1638 : nPruneAfterHeight = 1000;
362 : 1638 : m_assumed_blockchain_size = 22;
363 : 1638 : m_assumed_chain_state_size = 2;
364 : :
365 : 1638 : const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e";
366 [ + - ]: 1638 : const CScript testnet4_genesis_script = CScript() << "000000000000000000000000000000000000000000000000000000000000000000"_hex << OP_CHECKSIG;
367 : 3276 : genesis = CreateGenesisBlock(testnet4_genesis_msg,
368 : : testnet4_genesis_script,
369 : : 1714777860,
370 : : 393743547,
371 : : 0x1d00ffff,
372 : : 1,
373 [ + - ]: 1638 : 50 * COIN);
374 [ + - ]: 1638 : consensus.hashGenesisBlock = genesis.GetHash();
375 [ - + ]: 1638 : assert(consensus.hashGenesisBlock == uint256{"00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"});
376 [ - + ]: 1638 : assert(genesis.hashMerkleRoot == uint256{"7aa0a7ae1e223414cb807e40cd57e667b718e42aaf9306db9102fe28912b7b4e"});
377 : :
378 [ - + ]: 1638 : vFixedSeeds.clear();
379 : 1638 : vSeeds.clear();
380 : : // nodes with support for servicebits filtering should be at the top
381 [ + - ]: 1638 : vSeeds.emplace_back("seed.testnet4.bitcoin.sprovoost.nl."); // Sjors Provoost
382 [ + - ]: 1638 : vSeeds.emplace_back("seed.testnet4.wiz.biz."); // Jason Maurice
383 : :
384 [ + - + - ]: 1638 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
385 [ + - + - ]: 1638 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
386 [ + - + - ]: 1638 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
387 [ + - ]: 1638 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
388 [ + - ]: 1638 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
389 : :
390 [ + - ]: 1638 : bech32_hrp = "tb";
391 : :
392 [ + - + - ]: 1638 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_testnet4), std::end(chainparams_seed_testnet4));
393 : :
394 : 1638 : fDefaultConsistencyChecks = false;
395 : 1638 : m_is_mockable_chain = false;
396 : :
397 : 1638 : m_assumeutxo_data = {
398 : : {
399 : : .height = 90'000,
400 : 1638 : .hash_serialized = AssumeutxoHash{uint256{"784fb5e98241de66fdd429f4392155c9e7db5c017148e66e8fdbc95746f8b9b5"}},
401 : : .m_chain_tx_count = 11347043,
402 : : .blockhash = consteval_ctor(uint256{"0000000002ebe8bcda020e0dd6ccfbdfac531d2f6a81457191b99fc2df2dbe3b"}),
403 : : }
404 [ + - ]: 1638 : };
405 : :
406 : 1638 : chainTxData = ChainTxData{
407 : : // Data from RPC: getchaintxstats 4096 000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b
408 : : .nTime = 1752470331,
409 : : .tx_count = 11414302,
410 : : .dTxRate = 0.2842619757327476,
411 : : };
412 : :
413 : : // Generated by headerssync-params.py on 2025-09-03.
414 : 1638 : m_headers_sync_params = HeadersSyncParams{
415 : : .commitment_period = 275,
416 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
417 : : };
418 : 1638 : }
419 : : };
420 : :
421 : : /**
422 : : * Signet: test network with an additional consensus parameter (see BIP325).
423 : : */
424 : 0 : class SigNetParams : public CChainParams {
425 : : public:
426 : 1639 : explicit SigNetParams(const SigNetOptions& options)
427 : 1639 : {
428 : 1639 : std::vector<uint8_t> bin;
429 [ - + ]: 1639 : vFixedSeeds.clear();
430 : 1639 : vSeeds.clear();
431 : :
432 [ + - ]: 1639 : if (!options.challenge) {
433 [ + - ]: 3278 : bin = "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae"_hex_v_u8;
434 [ + - + - ]: 1639 : vFixedSeeds = std::vector<uint8_t>(std::begin(chainparams_seed_signet), std::end(chainparams_seed_signet));
435 [ + - ]: 1639 : vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl.");
436 [ + - ]: 1639 : 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
437 : :
438 : 1639 : consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000000000000067d328e681a"};
439 : 1639 : consensus.defaultAssumeValid = uint256{"000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e"}; // 267665
440 : 1639 : m_assumed_blockchain_size = 20;
441 : 1639 : m_assumed_chain_state_size = 4;
442 : 1639 : chainTxData = ChainTxData{
443 : : // Data from RPC: getchaintxstats 4096 000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e
444 : : .nTime = 1756723017,
445 : : .tx_count = 26185472,
446 : : .dTxRate = 0.7452721495389969,
447 : : };
448 : : } else {
449 [ # # ]: 0 : bin = *options.challenge;
450 : 0 : consensus.nMinimumChainWork = uint256{};
451 : 0 : consensus.defaultAssumeValid = uint256{};
452 : 0 : m_assumed_blockchain_size = 0;
453 : 0 : m_assumed_chain_state_size = 0;
454 : 0 : chainTxData = ChainTxData{
455 : : 0,
456 : : 0,
457 : : 0,
458 : : };
459 [ # # # # : 0 : LogInfo("Signet with challenge %s", HexStr(bin));
# # ]
460 : : }
461 : :
462 [ - + ]: 1639 : if (options.seeds) {
463 [ # # ]: 0 : vSeeds = *options.seeds;
464 : : }
465 : :
466 : 1639 : m_chain_type = ChainType::SIGNET;
467 : 1639 : consensus.signet_blocks = true;
468 [ + - ]: 1639 : consensus.signet_challenge.assign(bin.begin(), bin.end());
469 : 1639 : consensus.nSubsidyHalvingInterval = 210000;
470 : 1639 : consensus.BIP34Height = 1;
471 : 1639 : consensus.BIP34Hash = uint256{};
472 : 1639 : consensus.BIP65Height = 1;
473 : 1639 : consensus.BIP66Height = 1;
474 : 1639 : consensus.CSVHeight = 1;
475 : 1639 : consensus.SegwitHeight = 1;
476 : 1639 : consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
477 : 1639 : consensus.nPowTargetSpacing = 10 * 60;
478 : 1639 : consensus.fPowAllowMinDifficultyBlocks = false;
479 : 1639 : consensus.enforce_BIP94 = false;
480 : 1639 : consensus.fPowNoRetargeting = false;
481 : 1639 : consensus.MinBIP9WarningHeight = 0;
482 : 1639 : consensus.powLimit = uint256{"00000377ae000000000000000000000000000000000000000000000000000000"};
483 [ + - ]: 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
484 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
485 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
486 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
487 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1815; // 90%
488 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
489 : :
490 : : // Activation of Taproot (BIPs 340-342)
491 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
492 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
493 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
494 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
495 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90%
496 : 1639 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016;
497 : :
498 : : // message start is defined as the first 4 bytes of the sha256d of the block script
499 [ + - ]: 1639 : HashWriter h{};
500 [ + - ]: 1639 : h << consensus.signet_challenge;
501 [ + - ]: 1639 : uint256 hash = h.GetHash();
502 : 1639 : std::copy_n(hash.begin(), 4, pchMessageStart.begin());
503 : :
504 : 1639 : nDefaultPort = 38333;
505 : 1639 : nPruneAfterHeight = 1000;
506 : :
507 [ + - ]: 1639 : genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
508 [ + - ]: 1639 : consensus.hashGenesisBlock = genesis.GetHash();
509 [ - + ]: 1639 : assert(consensus.hashGenesisBlock == uint256{"00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"});
510 [ - + ]: 1639 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
511 : :
512 : 1639 : m_assumeutxo_data = {
513 : : {
514 : : .height = 160'000,
515 : 1639 : .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}},
516 : : .m_chain_tx_count = 2289496,
517 : : .blockhash = consteval_ctor(uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"}),
518 : : }
519 [ + - ]: 1639 : };
520 : :
521 [ + - + - ]: 1639 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
522 [ + - + - ]: 1639 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
523 [ + - + - ]: 1639 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
524 [ + - ]: 1639 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
525 [ + - ]: 1639 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
526 : :
527 [ + - ]: 1639 : bech32_hrp = "tb";
528 : :
529 : 1639 : fDefaultConsistencyChecks = false;
530 : 1639 : m_is_mockable_chain = false;
531 : :
532 : : // Generated by headerssync-params.py on 2025-09-03.
533 : 1639 : m_headers_sync_params = HeadersSyncParams{
534 : : .commitment_period = 390,
535 : : .redownload_buffer_size = 9584, // 9584/390 = ~24.6 commitments
536 : : };
537 : 1639 : }
538 : : };
539 : :
540 : : /**
541 : : * Regression test: intended for private networks only. Has minimal difficulty to ensure that
542 : : * blocks can be found instantly.
543 : : */
544 : 0 : class CRegTestParams : public CChainParams
545 : : {
546 : : public:
547 : 3122 : explicit CRegTestParams(const RegTestOptions& opts)
548 : 3122 : {
549 : 3122 : m_chain_type = ChainType::REGTEST;
550 : 3122 : consensus.signet_blocks = false;
551 [ - + ]: 3122 : consensus.signet_challenge.clear();
552 : 3122 : consensus.nSubsidyHalvingInterval = 150;
553 : 3122 : consensus.BIP34Height = 1; // Always active unless overridden
554 : 3122 : consensus.BIP34Hash = uint256();
555 : 3122 : consensus.BIP65Height = 1; // Always active unless overridden
556 : 3122 : consensus.BIP66Height = 1; // Always active unless overridden
557 : 3122 : consensus.CSVHeight = 1; // Always active unless overridden
558 : 3122 : consensus.SegwitHeight = 0; // Always active unless overridden
559 : 3122 : consensus.MinBIP9WarningHeight = 0;
560 : 3122 : consensus.powLimit = uint256{"7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
561 : 3122 : consensus.nPowTargetTimespan = 24 * 60 * 60; // one day
562 : 3122 : consensus.nPowTargetSpacing = 10 * 60;
563 : 3122 : consensus.fPowAllowMinDifficultyBlocks = true;
564 : 3122 : consensus.enforce_BIP94 = opts.enforce_bip94;
565 : 3122 : consensus.fPowNoRetargeting = true;
566 : :
567 [ + - ]: 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
568 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
569 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
570 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
571 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 108; // 75%
572 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 144; // Faster than normal for regtest (144 instead of 2016)
573 : :
574 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
575 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
576 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
577 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
578 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 108; // 75%
579 : 3122 : consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 144;
580 : :
581 : 3122 : consensus.nMinimumChainWork = uint256{};
582 : 3122 : consensus.defaultAssumeValid = uint256{};
583 : :
584 : 3122 : pchMessageStart[0] = 0xfa;
585 : 3122 : pchMessageStart[1] = 0xbf;
586 : 3122 : pchMessageStart[2] = 0xb5;
587 : 3122 : pchMessageStart[3] = 0xda;
588 : 3122 : nDefaultPort = 18444;
589 [ + - ]: 3122 : nPruneAfterHeight = opts.fastprune ? 100 : 1000;
590 : 3122 : m_assumed_blockchain_size = 0;
591 : 3122 : m_assumed_chain_state_size = 0;
592 : :
593 [ + + - + : 4509 : for (const auto& [dep, height] : opts.activation_heights) {
- - - - ]
594 [ - + - - : 1387 : switch (dep) {
- - ]
595 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_SEGWIT:
596 : 0 : consensus.SegwitHeight = int{height};
597 : 0 : break;
598 : 1387 : case Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB:
599 : 1387 : consensus.BIP34Height = int{height};
600 : 1387 : break;
601 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_DERSIG:
602 : 0 : consensus.BIP66Height = int{height};
603 : 0 : break;
604 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CLTV:
605 : 0 : consensus.BIP65Height = int{height};
606 : 0 : break;
607 : 0 : case Consensus::BuriedDeployment::DEPLOYMENT_CSV:
608 : 0 : consensus.CSVHeight = int{height};
609 : 0 : break;
610 : : }
611 : : }
612 : :
613 [ - + ]: 3122 : for (const auto& [deployment_pos, version_bits_params] : opts.version_bits_parameters) {
614 : 0 : consensus.vDeployments[deployment_pos].nStartTime = version_bits_params.start_time;
615 : 0 : consensus.vDeployments[deployment_pos].nTimeout = version_bits_params.timeout;
616 : 0 : consensus.vDeployments[deployment_pos].min_activation_height = version_bits_params.min_activation_height;
617 : : }
618 : :
619 [ + - ]: 3122 : genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
620 [ + - ]: 3122 : consensus.hashGenesisBlock = genesis.GetHash();
621 [ - + ]: 3122 : assert(consensus.hashGenesisBlock == uint256{"0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"});
622 [ - + ]: 3122 : assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
623 : :
624 [ - + ]: 3122 : vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
625 : 3122 : vSeeds.clear();
626 [ + - ]: 3122 : vSeeds.emplace_back("dummySeed.invalid.");
627 : :
628 : 3122 : fDefaultConsistencyChecks = true;
629 : 3122 : m_is_mockable_chain = true;
630 : :
631 : 3122 : m_assumeutxo_data = {
632 : : { // For use by unit tests
633 : : .height = 110,
634 : 3122 : .hash_serialized = AssumeutxoHash{uint256{"b952555c8ab81fec46f3d4253b7af256d766ceb39fb7752b9d18cdf4a0141327"}},
635 : : .m_chain_tx_count = 111,
636 : : .blockhash = consteval_ctor(uint256{"6affe030b7965ab538f820a56ef56c8149b7dc1d1c144af57113be080db7c397"}),
637 : : },
638 : : {
639 : : // For use by fuzz target src/test/fuzz/utxo_snapshot.cpp
640 : : .height = 200,
641 : 3122 : .hash_serialized = AssumeutxoHash{uint256{"17dcc016d188d16068907cdeb38b75691a118d43053b8cd6a25969419381d13a"}},
642 : : .m_chain_tx_count = 201,
643 : : .blockhash = consteval_ctor(uint256{"385901ccbd69dff6bbd00065d01fb8a9e464dede7cfe0372443884f9b1dcf6b9"}),
644 : : },
645 : : {
646 : : // For use by test/functional/feature_assumeutxo.py and test/functional/tool_bitcoin_chainstate.py
647 : : .height = 299,
648 [ + - ]: 3122 : .hash_serialized = AssumeutxoHash{uint256{"d2b051ff5e8eef46520350776f4100dd710a63447a8e01d917e92e79751a63e2"}},
649 : : .m_chain_tx_count = 334,
650 : : .blockhash = consteval_ctor(uint256{"7cc695046fec709f8c9394b6f928f81e81fd3ac20977bb68760fa1faa7916ea2"}),
651 : : },
652 [ + - ]: 3122 : };
653 : :
654 : 3122 : chainTxData = ChainTxData{
655 : : .nTime = 0,
656 : : .tx_count = 0,
657 : : .dTxRate = 0.001, // Set a non-zero rate to make it testable
658 : : };
659 : :
660 [ + - + - ]: 3122 : base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
661 [ + - + - ]: 3122 : base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
662 [ + - + - ]: 3122 : base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
663 [ + - ]: 3122 : base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
664 [ + - ]: 3122 : base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
665 : :
666 [ + - ]: 3122 : bech32_hrp = "bcrt";
667 : :
668 : : // Copied from Testnet4.
669 : 3122 : m_headers_sync_params = HeadersSyncParams{
670 : : .commitment_period = 275,
671 : : .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments
672 : : };
673 : 3122 : }
674 : : };
675 : :
676 : 1639 : std::unique_ptr<const CChainParams> CChainParams::SigNet(const SigNetOptions& options)
677 : : {
678 : 1639 : return std::make_unique<const SigNetParams>(options);
679 : : }
680 : :
681 : 3122 : std::unique_ptr<const CChainParams> CChainParams::RegTest(const RegTestOptions& options)
682 : : {
683 : 3122 : return std::make_unique<const CRegTestParams>(options);
684 : : }
685 : :
686 : 1652 : std::unique_ptr<const CChainParams> CChainParams::Main()
687 : : {
688 : 1652 : return std::make_unique<const CMainParams>();
689 : : }
690 : :
691 : 1638 : std::unique_ptr<const CChainParams> CChainParams::TestNet()
692 : : {
693 : 1638 : return std::make_unique<const CTestNetParams>();
694 : : }
695 : :
696 : 1638 : std::unique_ptr<const CChainParams> CChainParams::TestNet4()
697 : : {
698 : 1638 : return std::make_unique<const CTestNet4Params>();
699 : : }
700 : :
701 : 254 : std::vector<int> CChainParams::GetAvailableSnapshotHeights() const
702 : : {
703 : 254 : std::vector<int> heights;
704 [ - + + - ]: 254 : heights.reserve(m_assumeutxo_data.size());
705 : :
706 [ + + ]: 1016 : for (const auto& data : m_assumeutxo_data) {
707 [ + - ]: 762 : heights.emplace_back(data.height);
708 : : }
709 : 254 : return heights;
710 : 0 : }
711 : :
712 : 164 : std::optional<ChainType> GetNetworkForMagic(const MessageStartChars& message)
713 : : {
714 : 164 : const auto mainnet_msg = CChainParams::Main()->MessageStart();
715 : 164 : const auto testnet_msg = CChainParams::TestNet()->MessageStart();
716 : 164 : const auto testnet4_msg = CChainParams::TestNet4()->MessageStart();
717 : 164 : const auto regtest_msg = CChainParams::RegTest({})->MessageStart();
718 [ + - ]: 164 : const auto signet_msg = CChainParams::SigNet({})->MessageStart();
719 : :
720 [ + + ]: 164 : if (std::ranges::equal(message, mainnet_msg)) {
721 : 21 : return ChainType::MAIN;
722 [ + + ]: 143 : } else if (std::ranges::equal(message, testnet_msg)) {
723 : 13 : return ChainType::TESTNET;
724 [ + + ]: 130 : } else if (std::ranges::equal(message, testnet4_msg)) {
725 : 19 : return ChainType::TESTNET4;
726 [ + + ]: 111 : } else if (std::ranges::equal(message, regtest_msg)) {
727 : 66 : return ChainType::REGTEST;
728 [ + + ]: 45 : } else if (std::ranges::equal(message, signet_msg)) {
729 : 13 : return ChainType::SIGNET;
730 : : }
731 : 32 : return std::nullopt;
732 [ + - ]: 164 : }
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