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php如何使用JSON-RPC查找以太坊中的最新块哈希hash值?

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我用PHP中开发了一个以太坊块资源管理器,并成功地与我的服务器Geth节点建立了JSON-RPC通信。然而,当我试图找出最后一个区块时,我陷入了困境。我在https://ethereum.gitbooks.io/frontier-guide/content/rpc.html中读到了很不错的内容,但是我没有任何方法去查询到以太坊节点的哪一个是最后一个块。一旦我得到了块哈希,我就可以有接口检索完整的信息块,但我不知道如何找到最新的块哈希。

API接口中eth_blockNumber应该返回最新的块号,但是如何得到哈希?

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景凌凯 2020-03-18 18:53:33 952 0
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  • 有点尴尬唉 你要寻找的东西已经被吃掉啦!
    采纳回答
    {"jsonrpc":"2.0","id":1,"result":{"difficulty":"0x31962a3fc82b",
     "extraData":"0x4477617266506f6f6c",
     "gasLimit":"0x47c3d8",
     "gasUsed":"0x0",
     "hash":"0x78bfef68fccd4507f9f4804ba5c65eb2f928ea45b3383ade88aaa720f1209cba",
     "logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
     "miner":"0x2a65aca4d5fc5b5c859090a6c34d164135398226",
     "nonce":"0xa5e8fb780cc2cd5e",
     "number":"0x1e655a",
     "parentHash":"0x8b535592eb3192017a527bbf8e3596da86b3abea51d6257898b2ced9d3a83826",
     "receiptRoot":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
     "sha3Uncles":"0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
     "size":"0x20e",
     "stateRoot":"0xdc6ed0a382e50edfedb6bd296892690eb97eb3fc88fd55088d5ea753c48253dc",
     "timestamp":"0x579f4981",
     "totalDifficulty":"0x25cff06a0d96f4bee",
     "transactions":[],
     "transactionsRoot":"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
     "uncles":[]}}
    
    用latest也可以用eth_blockNumber,来得到最新块。
    
    2020-03-18 18:53:51
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