github.com/halybang/go-ethereum@v1.0.5-0.20180325041310-3b262bc1367c/genesis_example/genesis_byzantium.json (about)

     1  {
     2    "config": {
     3          "chainId": 1,
     4          "byzantiumBlock": 0
     5      },
     6    "alloc"      : {},
     7    "coinbase"   : "0x2d0e7c0813a51d3bd1d08246af2a8a7a57d8922e",
     8    "difficulty" : "0x20000",
     9    "extraData"  : "",
    10    "gasLimit"   : "0x2fefd8",
    11    "nonce"      : "0x0000000000000042",
    12    "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
    13    "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
    14    "timestamp"  : "0x00"
    15  }