diff --git a/contrib/devtools/headerssync-params.py b/contrib/devtools/headerssync-params.py index 82bdaadb233..886ea583d71 100755 --- a/contrib/devtools/headerssync-params.py +++ b/contrib/devtools/headerssync-params.py @@ -12,13 +12,13 @@ import random # Parameters: # Aim for still working fine at some point in the future. [datetime] -TIME = datetime(2028, 4, 2) +TIME = datetime(2028, 10, 10) # Expected block interval. [timedelta] BLOCK_INTERVAL = timedelta(seconds=600) # The number of headers corresponding to the minchainwork parameter. [headers] -MINCHAINWORK_HEADERS = 912683 +MINCHAINWORK_HEADERS = 938343 # Combined processing bandwidth from all attackers to one victim. [bit/s] # 6 Gbit/s is approximately the speed at which a single thread of a Ryzen 5950X CPU thread can hash diff --git a/src/kernel/chainparams.cpp b/src/kernel/chainparams.cpp index af2a15aca01..64809a75911 100644 --- a/src/kernel/chainparams.cpp +++ b/src/kernel/chainparams.cpp @@ -114,8 +114,8 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1815; // 90% consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016; - consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000dee8e2a309ad8a9820433c68"}; - consensus.defaultAssumeValid = uint256{"00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb"}; // 912683 + consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000001128750f82f4c366153a3a030"}; + consensus.defaultAssumeValid = uint256{"00000000000000000000ccebd6d74d9194d8dcdc1d177c478e094bfad51ba5ac"}; // 938343 /** * The message start string is designed to be unlikely to occur in normal data. @@ -128,7 +128,7 @@ public: pchMessageStart[3] = 0xd9; nDefaultPort = 8333; nPruneAfterHeight = 100000; - m_assumed_blockchain_size = 810; + m_assumed_blockchain_size = 856; m_assumed_chain_state_size = 14; genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN); @@ -181,20 +181,26 @@ public: .hash_serialized = AssumeutxoHash{uint256{"4daf8a17b4902498c5787966a2b51c613acdab5df5db73f196fa59a4da2f1568"}}, .m_chain_tx_count = 1226586151, .blockhash = uint256{"0000000000000000000108970acb9522ffd516eae17acddcb1bd16469194a821"}, + }, + { + .height = 935'000, + .hash_serialized = AssumeutxoHash{uint256{"e4b90ef9eae834f56c4b64d2d50143cee10ad87994c614d7d04125e2a6025050"}}, + .m_chain_tx_count = 1305397408, + .blockhash = uint256{"0000000000000000000147034958af1652b2b91bba607beacc5e72a56f0fb5ee"}, } }; chainTxData = ChainTxData{ - // Data from RPC: getchaintxstats 4096 00000000000000000000611fd22f2df7c8fbd0688745c3a6c3bb5109cc2a12cb - .nTime = 1756722903, - .tx_count = 1235299397, - .dTxRate = 5.456290459519495, + // Data from RPC: getchaintxstats 4096 00000000000000000000ccebd6d74d9194d8dcdc1d177c478e094bfad51ba5ac + .nTime = 1772055173, + .tx_count = 1315805869, + .dTxRate = 5.40111006496122, }; - // Generated by headerssync-params.py on 2025-09-01. + // Generated by headerssync-params.py on 2026-02-25. m_headers_sync_params = HeadersSyncParams{ - .commitment_period = 632, - .redownload_buffer_size = 15009, // 15009/632 = ~23.7 commitments + .commitment_period = 641, + .redownload_buffer_size = 15218, // 15218/641 = ~23.7 commitments }; } }; @@ -239,8 +245,8 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75% consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016; - consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000016dd270dd94fac1d7632"}; - consensus.defaultAssumeValid = uint256{"0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34"}; // 4550000 + consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000017dde1c649f3708d14b6"}; + consensus.defaultAssumeValid = uint256{"000000007a61e4230b28ac5cb6b5e5a0130de37ac1faf2f8987d2fa6505b67f4"}; // 4842348 pchMessageStart[0] = 0x0b; pchMessageStart[1] = 0x11; @@ -248,7 +254,7 @@ public: pchMessageStart[3] = 0x07; nDefaultPort = 18333; nPruneAfterHeight = 1000; - m_assumed_blockchain_size = 240; + m_assumed_blockchain_size = 245; m_assumed_chain_state_size = 19; genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN); @@ -284,20 +290,26 @@ public: .hash_serialized = AssumeutxoHash{uint256{"f841584909f68e47897952345234e37fcd9128cd818f41ee6c3ca68db8071be7"}}, .m_chain_tx_count = 66484552, .blockhash = uint256{"0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"}, + }, + { + .height = 4'840'000, + .hash_serialized = AssumeutxoHash{uint256{"ce6bb677bb2ee9789c4a1c9d73e6683c53fc20e8fdbedbdaaf468982a0c8db2a"}}, + .m_chain_tx_count = 536078574, + .blockhash = uint256{"00000000000000f4971a7fb37fbdff89315b69a2e1920c467654a382f0d64786"}, } }; chainTxData = ChainTxData{ - // Data from RPC: getchaintxstats 4096 0000000000000065c6c38258e201971a3fdfcc2ceee0dd6e85a6c022d45dee34 - .nTime = 1751816758, - .tx_count = 508468699, - .dTxRate = 7.172978845985714, + // Data from RPC: getchaintxstats 4096 000000007a61e4230b28ac5cb6b5e5a0130de37ac1faf2f8987d2fa6505b67f4 + .nTime = 1772051651, + .tx_count = 536108416, + .dTxRate = 0.02691479016257117, }; - // Generated by headerssync-params.py on 2025-09-03. + // Generated by headerssync-params.py on 2026-02-25. m_headers_sync_params = HeadersSyncParams{ - .commitment_period = 628, - .redownload_buffer_size = 13460, // 13460/628 = ~21.4 commitments + .commitment_period = 673, + .redownload_buffer_size = 14460, // 14460/673 = ~21.5 commitments }; } }; @@ -341,8 +353,8 @@ public: consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].threshold = 1512; // 75% consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].period = 2016; - consensus.nMinimumChainWork = uint256{"00000000000000000000000000000000000000000000034a4690fe592dc49c7c"}; - consensus.defaultAssumeValid = uint256{"000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b"}; // 91000 + consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000009a0fe15d0177d086304"}; + consensus.defaultAssumeValid = uint256{"0000000002368b1e4ee27e2e85676ae6f9f9e69579b29093e9a82c170bf7cf8a"}; // 123613 pchMessageStart[0] = 0x1c; pchMessageStart[1] = 0x16; @@ -350,7 +362,7 @@ public: pchMessageStart[3] = 0x28; nDefaultPort = 48333; nPruneAfterHeight = 1000; - m_assumed_blockchain_size = 22; + m_assumed_blockchain_size = 31; m_assumed_chain_state_size = 2; const char* testnet4_genesis_msg = "03/May/2024 000000000000000000001ebd58c244970b3aa9d783bb001011fbe8ea8e98e00e"; @@ -391,20 +403,26 @@ public: .hash_serialized = AssumeutxoHash{uint256{"784fb5e98241de66fdd429f4392155c9e7db5c017148e66e8fdbc95746f8b9b5"}}, .m_chain_tx_count = 11347043, .blockhash = uint256{"0000000002ebe8bcda020e0dd6ccfbdfac531d2f6a81457191b99fc2df2dbe3b"}, + }, + { + .height = 120'000, + .hash_serialized = AssumeutxoHash{uint256{"10b05d05ad468d0971162e1b222a4aa66caca89da2bb2a93f8f37fb29c4794b0"}}, + .m_chain_tx_count = 14141057, + .blockhash = uint256{"000000000bd2317e51b3c5794981c35ba894ce27d3e772d5c39ecd9cbce01dc8"}, } }; chainTxData = ChainTxData{ - // Data from RPC: getchaintxstats 4096 000000000000000180a58e7fa3b0db84b5ea76377524894f53660d93ac839d9b - .nTime = 1752470331, - .tx_count = 11414302, - .dTxRate = 0.2842619757327476, + // Data from RPC: getchaintxstats 4096 0000000002368b1e4ee27e2e85676ae6f9f9e69579b29093e9a82c170bf7cf8a + .nTime = 1772013387, + .tx_count = 14191421, + .dTxRate = 0.01848579579528412, }; - // Generated by headerssync-params.py on 2025-09-03. + // Generated by headerssync-params.py on 2026-02-25. m_headers_sync_params = HeadersSyncParams{ - .commitment_period = 275, - .redownload_buffer_size = 7017, // 7017/275 = ~25.5 commitments + .commitment_period = 606, + .redownload_buffer_size = 16092, // 16092/606 = ~26.6 commitments }; } }; @@ -426,15 +444,15 @@ public: vSeeds.emplace_back("seed.signet.bitcoin.sprovoost.nl."); 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 - consensus.nMinimumChainWork = uint256{"0000000000000000000000000000000000000000000000000000067d328e681a"}; - consensus.defaultAssumeValid = uint256{"000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e"}; // 267665 - m_assumed_blockchain_size = 20; + consensus.nMinimumChainWork = uint256{"00000000000000000000000000000000000000000000000000000b463ea0a4b8"}; + consensus.defaultAssumeValid = uint256{"00000008414aab61092ef93f1aacc54cf9e9f16af29ddad493b908a01ff5c329"}; // 293175 + m_assumed_blockchain_size = 24; m_assumed_chain_state_size = 4; chainTxData = ChainTxData{ - // Data from RPC: getchaintxstats 4096 000000128586e26813922680309f04e1de713c7542fee86ed908f56368aefe2e - .nTime = 1756723017, - .tx_count = 26185472, - .dTxRate = 0.7452721495389969, + // Data from RPC: getchaintxstats 4096 00000008414aab61092ef93f1aacc54cf9e9f16af29ddad493b908a01ff5c329 + .nTime = 1772055248, + .tx_count = 28676833, + .dTxRate = 0.06736623436338929, }; } else { bin = *options.challenge; @@ -506,6 +524,12 @@ public: .hash_serialized = AssumeutxoHash{uint256{"fe0a44309b74d6b5883d246cb419c6221bcccf0b308c9b59b7d70783dbdf928a"}}, .m_chain_tx_count = 2289496, .blockhash = uint256{"0000003ca3c99aff040f2563c2ad8f8ec88bd0fd6b8f0895cfaf1ef90353a62c"}, + }, + { + .height = 290'000, + .hash_serialized = AssumeutxoHash{uint256{"97267e000b4b876800167e71b9123f1529d13b14308abec2888bbd2160d14545"}}, + .m_chain_tx_count = 28547497, + .blockhash = uint256{"0000000577f2741bb30cd9d39d6d71b023afbeb9764f6260786a97969d5c9ac0"}, } }; @@ -520,10 +544,10 @@ public: fDefaultConsistencyChecks = false; m_is_mockable_chain = false; - // Generated by headerssync-params.py on 2025-09-03. + // Generated by headerssync-params.py on 2026-02-25. m_headers_sync_params = HeadersSyncParams{ - .commitment_period = 390, - .redownload_buffer_size = 9584, // 9584/390 = ~24.6 commitments + .commitment_period = 620, + .redownload_buffer_size = 15724, // 15724/620 = ~25.4 commitments }; } };