genesis.json

{
  "config": {
    "chainId": 42,
    "homesteadBlock": 0,
    "eip150Block": 0,
    "eip155Block": 0,
    "eip158Block": 0,
    "byzantiumBlock": 0,
    "constantinopleBlock": 0,
    "petersburgBlock": 0,
    "istanbulBlock": 0,
    "muirGlacierBlock": 0,
    "berlinBlock": 0,
    "londonBlock": 0,
    "arrowGlacierBlock": 0,
    "grayGlacierBlock": 0,
    "mergeNetsplitBlock": 0,
    "shanghaiTime": 0,
    "cancunTime": 0,
    "pragueTime": 0,
    "bedrockBlock": 0,
    "regolithTime": 0,
    "canyonTime": 0,
    "ecotoneTime": 0,
    "fjordTime": 0,
    "graniteTime": 0,
    "holoceneTime": 0,
    "isthmusTime": 0,
    "terminalTotalDifficulty": 0,
    "depositContractAddress": "0x0000000000000000000000000000000000000000",
    "optimism": {
      "eip1559Elasticity": 6,
      "eip1559Denominator": 50,
      "eip1559DenominatorCanyon": 250
    }
  },
  "nonce": "0x0",
  "timestamp": "0x6878d4d4",
  "extraData": "0x00000000fa00000006",
  "gasLimit": "0x3938700",
  "difficulty": "0x0",
  "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "coinbase": "0x4200000000000000000000000000000000000011",
  "number": "0x0",
  "gasUsed": "0x0",
  "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
  "baseFeePerGas": "0x3b9aca00",
  "excessBlobGas": "0x0",
  "blobGasUsed": "0x0"
}