params: set mainnet terminal total difficulty for the merge (ethereum#25528)

* params: set mainnet ttd to 58_750_000_000_000_000_000_000

* params: set mainnet ttd to 58_750_000_000_000_000_000_000

Author: MariusVanDerWijden

params/config.go

@@ -55,26 +55,29 @@ var CheckpointOracles = map[common.Hash]*CheckpointOracleConfig{
 }
 
 var (
+	MainnetTerminalTotalDifficulty, _ = new(big.Int).SetString("58_750_000_000_000_000_000_000", 0)
+
 	// MainnetChainConfig is the chain parameters to run a node on the main network.
 	MainnetChainConfig = &ChainConfig{
-		ChainID:             big.NewInt(1),
-		HomesteadBlock:      big.NewInt(1_150_000),
-		DAOForkBlock:        big.NewInt(1_920_000),
-		DAOForkSupport:      true,
-		EIP150Block:         big.NewInt(2_463_000),
-		EIP150Hash:          common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
-		EIP155Block:         big.NewInt(2_675_000),
-		EIP158Block:         big.NewInt(2_675_000),
-		ByzantiumBlock:      big.NewInt(4_370_000),
-		ConstantinopleBlock: big.NewInt(7_280_000),
-		PetersburgBlock:     big.NewInt(7_280_000),
-		IstanbulBlock:       big.NewInt(9_069_000),
-		MuirGlacierBlock:    big.NewInt(9_200_000),
-		BerlinBlock:         big.NewInt(12_244_000),
-		LondonBlock:         big.NewInt(12_965_000),
-		ArrowGlacierBlock:   big.NewInt(13_773_000),
-		GrayGlacierBlock:    big.NewInt(15_050_000),
-		Ethash:              new(EthashConfig),
+		ChainID:                 big.NewInt(1),
+		HomesteadBlock:          big.NewInt(1_150_000),
+		DAOForkBlock:            big.NewInt(1_920_000),
+		DAOForkSupport:          true,
+		EIP150Block:             big.NewInt(2_463_000),
+		EIP150Hash:              common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
+		EIP155Block:             big.NewInt(2_675_000),
+		EIP158Block:             big.NewInt(2_675_000),
+		ByzantiumBlock:          big.NewInt(4_370_000),
+		ConstantinopleBlock:     big.NewInt(7_280_000),
+		PetersburgBlock:         big.NewInt(7_280_000),
+		IstanbulBlock:           big.NewInt(9_069_000),
+		MuirGlacierBlock:        big.NewInt(9_200_000),
+		BerlinBlock:             big.NewInt(12_244_000),
+		LondonBlock:             big.NewInt(12_965_000),
+		ArrowGlacierBlock:       big.NewInt(13_773_000),
+		GrayGlacierBlock:        big.NewInt(15_050_000),
+		TerminalTotalDifficulty: MainnetTerminalTotalDifficulty, // 58_750_000_000_000_000_000_000
+		Ethash:                  new(EthashConfig),
 	}
 
 	// MainnetTrustedCheckpoint contains the light client trusted checkpoint for the main network.
@@ -471,10 +474,10 @@ func (c *ChainConfig) String() string {
 	// Add a special section for the merge as it's non-obvious
 	if c.TerminalTotalDifficulty == nil {
 		banner += "The Merge is not yet available for this network!\n"
-		banner += " - Hard-fork specification: https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md)"
+		banner += " - Hard-fork specification: https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md"
 	} else {
 		banner += "Merge configured:\n"
-		banner += " - Hard-fork specification:    https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md)\n"
+		banner += " - Hard-fork specification:    https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md\n"
 		banner += fmt.Sprintf(" - Network known to be merged: %v\n", c.TerminalTotalDifficultyPassed)
 		banner += fmt.Sprintf(" - Total terminal difficulty:  %v\n", c.TerminalTotalDifficulty)
 		banner += fmt.Sprintf(" - Merge netsplit block:       %-8v", c.MergeNetsplitBlock)