Outputs an Ethereum genesis block given a Geth genesis config.
Example:
$ cat genesis.json
{
"config": {
"chainId": 1212,
"homesteadBlock": 0,
"eip150Block": 0,
"eip155Block": 0,
"eip158Block": 0,
"byzantiumBlock": 0,
"constantinopleBlock": 0,
"petersburgBlock": 0,
"istanbulBlock": 0,
"berlinBlock": 0,
"londonBlock": 0,
"mergeForkBlock": 0,
"terminalTotalDifficulty": 0,
"terminalTotalDifficultyPassed": true,
"mergeNetsplitBlock": 0
},
"alloc": {},
"coinbase": "0x0000000000000000000000000000000000000000",
"difficulty": "0x01",
"extraData": "",
"gasLimit": "0x400000",
"nonce": "0x1234",
"mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"timestamp": "0"
}
$ eth-dump-genblock genesis.json
{
"baseFeePerGas": "0x3b9aca00",
"difficulty": "0x1",
"extraData": "0x",
"gasLimit": "0x400000",
"gasUsed": "0x0",
"hash": "0x2a2aa96ee3f1db21c9eab8348cfe5f6c5e3179c03b2a7c618461edd63821dbb6",
"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"miner": "0x0000000000000000000000000000000000000000",
"mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"nonce": "0x0000000000001234",
"number": "0x0",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
"size": "0x1fd",
"stateRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"timestamp": "0x0",
"transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
"uncles": []
}