eth_getUncleByBlockHashAndIndex - Polygon

Polygon API - Returns information about an uncle of a block by hash and uncle index position.


  • QUANTITY|TAG - A block number, or the string "earliest", "latest" or "pending", as in the
    default block parameter.
  • QUANTITY - The uncle's index position.
params: [
    "0x0", // 0


See eth_getBlockByHash

Object - A block object with the following fields, or null when no block was found:

  • number: QUANTITY - the block number. null when its pending block.
  • hash: DATA, 32 Bytes - hash of the block. null when its pending block.
  • parentHash: DATA, 32 Bytes - hash of the parent block.
  • nonce: DATA, 8 Bytes - hash of the generated proof-of-work. null when its pending block.
  • sha3Uncles: DATA, 32 Bytes - SHA3 of the uncles data in the block.
  • logsBloom: DATA, 256 Bytes - the bloom filter for the logs of the block. null when its pending block.
  • transactionsRoot: DATA, 32 Bytes - the root of the transaction trie of the block.
  • stateRoot: DATA, 32 Bytes - the root of the final state trie of the block.
  • receiptsRoot: DATA, 32 Bytes - the root of the receipts trie of the block.
  • miner: DATA, 20 Bytes - the address of the beneficiary to whom the mining rewards were given.
  • difficulty: QUANTITY - integer of the difficulty for this block.
  • totalDifficulty: QUANTITY - integer of the total difficulty of the chain until this block.
  • extraData: DATA - the "extra data" field of this block.
  • size: QUANTITY - integer the size of this block in bytes.
  • gasLimit: QUANTITY - the maximum gas allowed in this block.
  • gasUsed: QUANTITY - the total used gas by all transactions in this block.
  • timestamp: QUANTITY - the unix timestamp for when the block was collated.
  • transactions: Array - Array of transaction objects, or 32 Bytes transaction hashes depending on the last given parameter.
  • uncles: Array - Array of uncle hashes.



curl \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_getUncleByBlockHashAndIndex","params":["0x17fd2777f5f4f15912a6ea49bcb213c6991ba7ef57cdd64a572f719aa2a46c23", "0x0"],"id":0}'
RequestType: POST
    "params":["0x17fd2777f5f4f15912a6ea49bcb213c6991ba7ef57cdd64a572f719aa2a46c23", "0x0"],


    "jsonrpc": "2.0",
    "id": 0,
    "result": {
        "difficulty": "0xbf93da424b943",
        "extraData": "0x65746865726d696e652d657539",
        "gasLimit": "0x7a121d",
        "gasUsed": "0x79ea62",
        "hash": "0x824cce7c7c2ec6874b9fa9a9a898eb5f27cbaf3991dfa81084c3af60d1db618c",
        "logsBloom": "0x0948432021200401804810002000000000381001001202440000010020000080a016262050e44850268052000400100505022305a64000054004200b0c04110000080c1055c42001054b804940a0401401008a00112d80082113400c10006580140005011a40220020000010001c0a00082300434002000050840010102082801c2000148540201004491814020480080111a0300600000003800640024200109c00202010044000880000106810a1a010000028a0100000422000140011000050a2a44b3080001060800000540c108102102600d000004730404a880100600021080100403000180000062642408b440060590400080101e046f08000000430",
        "miner": "0xea674fdde714fd979de3edf0f56aa9716b898ec8",
        "mixHash": "0x0b15fe0a9aa789c167b0f5ade7b72969d9f2193014cb4e98382254f60ffb2f4a",
        "nonce": "0xa212d6400b89b3f6",
        "number": "0x5bad54",
        "parentHash": "0x05e19fb68d9ec798073808e8b3170875cb327d4b6cde7d6f60fe194677bb26fd",
        "receiptsRoot": "0x90807b32c4aa4610c57289de57fa68ba50ed53f14dd2c25f1862aa049029dcd6",
        "sha3Uncles": "0xf763576c1ea6a8c61a206e16b1a2451bec5cba1c7545d7ff733a1e8c78715569",
        "size": "0x216",
        "stateRoot": "0xebc7a1603bfffe0a14bdb89f898e2f2824abb40f04579beb7b920c56d6e273c9",
        "timestamp": "0x5b54143f",
        "transactionsRoot": "0x7562cba41e067b364b933e7b566fb2444f6954fef3964a5a487d4cd79d97a56c",
        "uncles": []
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