{
    "coinbase"   : "0x0000000000000000000000000000000000000001",
    "difficulty" : "0x20000",
    "extraData"  : "",
    "gasLimit"   : "0x8000000",
    "nonce"      : "0x0000000000000042",
    "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
    "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
    "timestamp"  : "0x00",
    "alloc": {},
    "config": {
          "chainId": 15,
          "homesteadBlock": 0,
          "eip155Block": 0,
          "eip158Block": 0
      }
  }