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eth_getUncleByBlockNumberAndIndex
Returns information about an uncle of a block by number and uncle index position.

Parameters

    QUANTITY|TAG - a block number, or the string "earliest", "latest" or "pending", as in the default block parameter.
    QUANTITY - the uncle's index position.
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params: [
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'0x29c', // 668
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'0x0' // 0
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]
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Returns

NOTE: The return does not contain a list of transactions in the uncle block, to get this, make another request to eth_getBlockByHash or eth_getBlockByNumber​

​Example​

Request
Curl
Postman
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curl https://eth-mainnet.alchemyapi.io/v2/your-api-key \
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-X POST \
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-H "Content-Type: application/json" \
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-d '{"jsonrpc":"2.0","method":"eth_getUncleByBlockNumberAndIndex","params":["0x29c", "0x0"],"id":0}'
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URL: https://eth-mainnet.alchemyapi.io/v2/your-api-key
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RequestType: POST
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Body:
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{
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"jsonrpc":"2.0",
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"method":"eth_getUncleByBlockNumberAndIndex",
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"params":["0x29c", "0x0"],
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"id":0
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}
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Result
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{
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"jsonrpc": "2.0",
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"id": 0,
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"result": {
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"difficulty": "0x57f117f5c",
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"extraData": "0x476574682f76312e302e302f77696e646f77732f676f312e342e32",
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"gasLimit": "0x1388",
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"gasUsed": "0x0",
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"hash": "0x932bdf904546a2287a2c9b2ede37925f698a7657484b172d4e5184f80bdd464d",
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"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
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"miner": "0x5bf5e9cf9b456d6591073513de7fd69a9bef04bc",
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"mixHash": "0x4500aa4ee2b3044a155252e35273770edeb2ab6f8cb19ca8e732771484462169",
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"nonce": "0x24732773618192ac",
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"number": "0x299",
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"parentHash": "0xa779859b1ee558258b7008bbabff272280136c5dd3eb3ea3bfa8f6ae03bf91e5",
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"receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
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"sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
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"size": "0x21d",
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"stateRoot": "0x2604fbf5183f5360da249b51f1b9f1e0f315d2ff3ffa1a4143ff221ad9ca1fec",
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"timestamp": "0x55ba4827",
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"transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
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"uncles": []
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}
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}
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​

Last modified 2mo ago
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