genesis.json

{
    "config":{
        "chainId":21,
        "homesteadBlock":0,
        "daoForkBlock":0,
        "eip150Block":0,
        "eip150Hash":"0x0000000000000000000000000000000000000000000000000000000000000000",
        "eip155Block":0,
        "eip158Block":0,
        "byzantiumBlock":0,
        "constantinopleBlock":0,
        "petersburgBlock":0,
        "cuckoo":{
        }
    },
    "nonce":"0x21",
    "timestamp":"0x0",
    "extraData":"0x313732323a206e756d65726f20706f6e64657265206574206d656e737572612e",
    "gasLimit":"0x7a1200",
    "difficulty":"0x200",
    "mixHash":"0x0000000000000000000000000000000000000000000000000000000000000000",
    "coinbase":"0x0000000000000000000000000000000000000000",
    "alloc":{
        "b84041d064397bd8a1037220d996c16410c20f11":{
            "balance":"0x7be7c96b55bfe0ece80000",
            "blocknum":null
        }
    },
    "number":"0x0",
    "gasUsed":"0x0",
    "parentHash":"0x0000000000000000000000000000000000000000000000000000000000000000",
    "supply":"0x7be7c96b55bfe0ece80000"
}