kernel: update nMinimumChainWork & defaultAssumeValid for 27.x

Author: fanquake

src/kernel/chainparams.cpp

@@ -104,8 +104,8 @@ class CMainParams : public CChainParams {
         consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
         consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
 
-        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000052b2559353df4117b7348b64");
-        consensus.defaultAssumeValid = uint256S("0x00000000000000000001a0a448d6cf2546b06801389cc030b2b18c6491266815"); // 804000
+        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000063c4ebd298db40af57541800");
+        consensus.defaultAssumeValid = uint256S("0x000000000000000000026811d149d4d261995ec5b3f64f439a0a10e1a464af9a"); // 824000
 
         /**
          * The message start string is designed to be unlikely to occur in normal data.
@@ -222,8 +222,8 @@ class CTestNetParams : public CChainParams {
         consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
         consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
 
-        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000b6a51f415a67c0da307");
-        consensus.defaultAssumeValid = uint256S("0x0000000000000093bcb68c03a9a168ae252572d348a2eaeba2cdf9231d73206f"); // 2500000
+        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000c59b14e264ba6c15db9");
+        consensus.defaultAssumeValid = uint256S("0x000000000001323071f38f21ea5aae529ece491eadaccce506a59bcc2d968917"); // 2550000
 
         pchMessageStart[0] = 0x0b;
         pchMessageStart[1] = 0x11;
@@ -302,8 +302,8 @@ class SigNetParams : public CChainParams {
             vSeeds.emplace_back("178.128.221.177");
             vSeeds.emplace_back("v7ajjeirttkbnt32wpy3c6w3emwnfr3fkla7hpxcfokr3ysd3kqtzmqd.onion:38333");
 
-            consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000000001ad46be4862");
-            consensus.defaultAssumeValid = uint256S("0x0000013d778ba3f914530f11f6b69869c9fab54acff85acd7b8201d111f19b7f"); // 150000
+            consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000000000206e86f08e8");
+            consensus.defaultAssumeValid = uint256S("0x0000000870f15246ba23c16e370a7ffb1fc8a3dcf8cb4492882ed4b0e3d4cd26"); // 180000
             m_assumed_blockchain_size = 1;
             m_assumed_chain_state_size = 0;
             chainTxData = ChainTxData{