Merge bitcoin/bitcoin#24418: Chainparams update for 23.x

dca693e Update nMinimumChainWork, defaultAssumeValid for 23.x (laanwj)
85e71a3 Update chainTxData for 23.x (laanwj)
37282dc Update m_assumed_* chain parameters for 23.x (laanwj)

Pull request description:

  Update chain parameters for upcoming major release. See [doc/release-process.md](https://github.com/bitcoin/bitcoin/blob/master/doc/release-process.md) for review instructions.

  - `m_assumed_blockchain_size`, `m_assumed_chain_state_size`:

  ```
  bitcoin$ du -h .
  105M    ./blocks/index
  415G    ./blocks
  4.5G    ./chainstate
  420G    .
  bitcoin$ python3
  Python 3.9.10 (main, Jan 16 2022, 17:12:18)
  [GCC 11.2.0] on linux
  Type "help", "copyright", "credits" or "license" for more information.
  >>> 420 * 1.1
  462.00000000000006
  >>> 5 * 1.1
  5.5
  ```

  - `chainTxData`:
  ```
  cli getchaintxstats 4096 000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091
  {
    "time": 1645542140,
    "txcount": 712531200,
    "window_final_block_hash": "000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091",
    "window_final_block_height": 724466,
    "window_block_count": 4096,
    "window_tx_count": 6950257,
    "window_interval": 2404071,
    "txrate": 2.891036496010309
  }
  ```

  - `nMinimumChainWork`, `defaultAssumeValid`:

  ```
  $ cli getblockhash 724466 # was two from the tip at the time
  000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091
  $ cli getblockheader 000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091
  {
    "hash": "000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091",
    "confirmations": 3,
    "height": 724466,
    "version": 939515908,
    "versionHex": "37ffe004",
    "merkleroot": "35a08d9647972e7c3ec39ee7f4ab434f03445de7c446a4d1acc1254b4546bbbe",
    "time": 1645542140,
    "mediantime": 1645539567,
    "nonce": 188699556,
    "bits": "170a1078",
    "difficulty": 27967152532434.23,
    "chainwork": "00000000000000000000000000000000000000002927cdceccbd5209e81e80db",
    "nTx": 1948,
    "previousblockhash": "000000000000000000075e26c23c2ecec4e34699411ccd712ff6f2d252f65a78",
    "nextblockhash": "0000000000000000000905369cd69f68323e3e8da2933a78bea0b2cdb8baa89f"
  }
  ```

ACKs for top commit:
  Sjors:
    ACK dca693e
  achow101:
    ACK dca693e
  prayank23:
    ACK bitcoin/bitcoin@dca693e
  darosior:
    ACK dca693e -- only checked mainnet (on muliple nodes). Didn't do a reindex.

Tree-SHA512: 6d5d59f00717fce5f7ce10ec8d59f806ef11b0af21440cec112f70c8e13ebb884ba6c70e744e691fcc31fe7aec7aae968268c9207ccc820d64fdf7e7f98f0cff

Author: MarcoFalke

src/chainparams.cpp

@@ -91,8 +91,8 @@ 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("0x00000000000000000000000000000000000000001fa4663bbbe19f82de910280");
-        consensus.defaultAssumeValid = uint256S("0x00000000000000000008a89e854d57e5667df88f1cdef6fde2fbca1de5b639ad"); // 691719
+        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000002927cdceccbd5209e81e80db");
+        consensus.defaultAssumeValid = uint256S("0x000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091"); // 724466
 
         /**
          * The message start string is designed to be unlikely to occur in normal data.
@@ -105,7 +105,7 @@ class CMainParams : public CChainParams {
         pchMessageStart[3] = 0xd9;
         nDefaultPort = 8333;
         nPruneAfterHeight = 100000;
-        m_assumed_blockchain_size = 420;
+        m_assumed_blockchain_size = 460;
         m_assumed_chain_state_size = 6;
 
         genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
@@ -166,10 +166,10 @@ class CMainParams : public CChainParams {
         };
 
         chainTxData = ChainTxData{
-            // Data from RPC: getchaintxstats 4096 00000000000000000008a89e854d57e5667df88f1cdef6fde2fbca1de5b639ad
-            /* nTime    */ 1626697539,
-            /* nTxCount */ 656509474,
-            /* dTxRate  */ 2.424920418708139,
+            // Data from RPC: getchaintxstats 4096 000000000000000000052d314a259755ca65944e68df6b12a067ea8f1f5a7091
+            /* nTime    */ 1645542140,
+            /* nTxCount */ 712531200,
+            /* dTxRate  */ 2.891036496010309,
         };
     }
 };
@@ -210,8 +210,8 @@ 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("0x0000000000000000000000000000000000000000000005180c3bd8290da33a1a");
-        consensus.defaultAssumeValid = uint256S("0x0000000000004ae2f3896ca8ecd41c460a35bf6184e145d91558cece1c688a76"); // 2010000
+        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000064728c7be6fe4b2f961");
+        consensus.defaultAssumeValid = uint256S("0x00000000000163cfb1f97c4e4098a3692c8053ad9cab5ad9c86b338b5c00b8b7"); // 2143398
 
         pchMessageStart[0] = 0x0b;
         pchMessageStart[1] = 0x11;
@@ -261,10 +261,10 @@ class CTestNetParams : public CChainParams {
         };
 
         chainTxData = ChainTxData{
-            // Data from RPC: getchaintxstats 4096 0000000000004ae2f3896ca8ecd41c460a35bf6184e145d91558cece1c688a76
-            /* nTime    */ 1625727096,
-            /* nTxCount */ 60408943,
-            /* dTxRate  */ 0.08379062270367649,
+            // Data from RPC: getchaintxstats 4096 00000000d18cfe81cbeea665076807789bd8f831d557632e635bc6e3c003069e
+            /* nTime    */ 1645635119,
+            /* nTxCount */ 62226341,
+            /* dTxRate  */ 0.07717997442177152,
         };
     }
 };
@@ -286,15 +286,15 @@ class SigNetParams : public CChainParams {
             vSeeds.emplace_back("178.128.221.177");
             vSeeds.emplace_back("v7ajjeirttkbnt32wpy3c6w3emwnfr3fkla7hpxcfokr3ysd3kqtzmqd.onion:38333");
 
-            consensus.nMinimumChainWork = uint256S("0x0000000000000000000000000000000000000000000000000000008546553c03");
-            consensus.defaultAssumeValid = uint256S("0x000000187d4440e5bff91488b700a140441e089a8aaea707414982460edbfe54"); // 47200
+            consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000000000de26b0e471");
+            consensus.defaultAssumeValid = uint256S("0x00000112852484b5fe3451572368f93cfd2723279af3464e478aee35115256ef"); // 78788
             m_assumed_blockchain_size = 1;
             m_assumed_chain_state_size = 0;
             chainTxData = ChainTxData{
-                // Data from RPC: getchaintxstats 4096 000000187d4440e5bff91488b700a140441e089a8aaea707414982460edbfe54
-                /* nTime    */ 1626696658,
-                /* nTxCount */ 387761,
-                /* dTxRate  */ 0.04035946932424404,
+                // Data from RPC: getchaintxstats 4096 0000003d9144c56ac110ae04a0c271a0acce2f14f426b39fdf0d938c96d2eb09
+                /* nTime    */ 1645631279,
+                /* nTxCount */ 1257429,
+                /* dTxRate  */ 0.1389638742514995,
             };
         } else {
             const auto signet_challenge = args.GetArgs("-signetchallenge");