私有链配置

YANCC 9:23:40
{
        "config": {
                "chainid": 666,
                "homesteadBlock": 0,
                "eip150Block": 0,
                "eip150Hash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
                "eip155Block": 0,
                "eip158Block": 0,
                "byzantiumBlock": 0,
                "constantinopleBlock": 0,
                "petersburgBlock": 0,
                "istanbulBlock": 0,
                "ethash":{}
},
                "nonce": "0x0",
                "timestamp": "0x5ddf8f3e",
                "extraData": "0x0000000000000000000000000000000000000000000000000000000000000000",
                "gasLimit": "0x47b760",
                "difficulty": "0x00001",
                "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
                "coinbase": "0x0000000000000000000000000000000000000000",
                "alloc": { },
                "number":"0x0",

YANCC 9:24:43
 "gasUsed": "0x0",
                "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
}