[
  {
    "type": "function",
    "name": "getBitcoinHeader",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getBlockHash",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getCoinbaseAddress",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getCumulativeWork",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getDifficulty",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getDifficultyWithUncles",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getGasLimit",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getGasUsed",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getMergedMiningTags",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getMinGasPrice",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  },
  {
    "type": "function",
    "name": "getUncleCoinbaseAddress",
    "stateMutability": "view",
    "payable": false,
    "inputs": [
      { "name": "blockDepth", "type": "int256" },
      { "name": "uncleIndex", "type": "int256" }
    ],
    "outputs": [
      { "name": "", "type": "bytes" }
    ]
  }
]