{
  "currentCoinbase": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
  "currentDifficulty": "0x20000",
  "currentGasLimit": "0x750a163df65e8a",
  "currentNumber": "1",
  "currentTimestamp": "1000",
  "ommers": [
    {"delta":  1, "address": "0xbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" },
    {"delta":  2, "address": "0xcccccccccccccccccccccccccccccccccccccccc" }
  ]
}