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hub / github.com/bitcoin/bitcoin / CTestNetParams

Method CTestNetParams

src/kernel/chainparams.cpp:237–332  ·  view source on GitHub ↗

Source from the content-addressed store, hash-verified

235class CTestNetParams : public CChainParams {
236public:
237 CTestNetParams(const TestNetOptions& opts) {
238 m_chain_type = ChainType::TESTNET;
239 consensus.signet_blocks = false;
240 consensus.signet_challenge.clear();
241 consensus.nSubsidyHalvingInterval = 210000;
242 consensus.script_flag_exceptions.emplace( // BIP16 exception
243 uint256{"00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105"}, SCRIPT_VERIFY_NONE);
244 consensus.BIP34Height = 21111;
245 consensus.BIP34Hash = uint256{"0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"};
246 consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
247 consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
248 consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
249 consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
250 consensus.MinBIP9WarningHeight = 2013984; // taproot activation height + miner confirmation window
251 consensus.powLimit = uint256{"00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"};
252 consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
253 consensus.nPowTargetSpacing = 10 * 60;
254 consensus.fPowAllowMinDifficultyBlocks = true;
255 consensus.enforce_BIP94 = false;
256 consensus.fPowNoRetargeting = false;
257 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
258 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
259 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
260 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
261 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].threshold = 1512; // 75%
262 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].period = 2016;
263
264 ApplyDeploymentOptions(opts.dep_opts);
265
266 consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000017dde1c649f3708d14b6"};
267 consensus.defaultAssumeValid = uint256{"000000007a61e4230b28ac5cb6b5e5a0130de37ac1faf2f8987d2fa6505b67f4"}; // 4842348
268
269 pchMessageStart[0] = 0x0b;
270 pchMessageStart[1] = 0x11;
271 pchMessageStart[2] = 0x09;
272 pchMessageStart[3] = 0x07;
273 nDefaultPort = 18333;
274 nPruneAfterHeight = 1000;
275 m_assumed_blockchain_size = 245;
276 m_assumed_chain_state_size = 19;
277
278 genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
279 consensus.hashGenesisBlock = genesis.GetHash();
280 assert(consensus.hashGenesisBlock == uint256{"000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"});
281 assert(genesis.hashMerkleRoot == uint256{"4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"});
282
283 vFixedSeeds.clear();
284 vSeeds.clear();
285 // nodes with support for servicebits filtering should be at the top
286 vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch.");
287 vSeeds.emplace_back("seed.tbtc.petertodd.net.");
288 vSeeds.emplace_back("seed.testnet.bitcoin.sprovoost.nl.");
289 vSeeds.emplace_back("testnet-seed.bluematt.me."); // Just a static list of stable node(s), only supports x9
290 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
291
292 base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
293 base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
294 base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);

Callers

nothing calls this directly

Calls 7

CreateGenesisBlockFunction · 0.85
beginFunction · 0.85
endFunction · 0.85
emplaceMethod · 0.80
clearMethod · 0.45
GetHashMethod · 0.45
emplace_backMethod · 0.45

Tested by

no test coverage detected