getBlockHashByNumber

返回根据区块高度查询的区块哈希

参数

• groupID: unsigned int - 群组ID
• blockNumber: string - 区块高度(十进制字符串或0x开头的十六进制字符串)

返回值

• blockHash: string - 区块哈希
• 示例

// Request
curl -X POST --data '{"jsonrpc":"2.0","method":"getBlockHashByNumber","params":[1,"0x1"],"id":1}' http://127.0.0.1:8545 |jq
// Result
{
    "id": 1,
    "jsonrpc": "2.0",
    "result": "0x10bfdc1e97901ed22cc18a126d3ebb8125717c2438f61d84602f997959c631fa"
}