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eth_getUncleCountByBlockHash

Ethereum RPC

Overview

The eth_getUncleCountByBlockHash method is an Ethereum JSON-RPC method that returns the number of uncles in a specified block by its hash. This method can be useful for gathering information about the performance of the Ethereum network and to analyse the security of the blockchain.

Uncles are blocks that are not included in the main blockchain but are still valid, and they contribute to the overall security and decentralisation of the Ethereum network. The inclusion of uncles helps prevent centralisation and ensures the mining process remains competitive.

Parameters

The eth_getUncleCountByBlockHash method takes one parameter:

  • blockHash: The hash of the block for which you want to get the uncle count.
    • Example: "0x827d30e914a3adeefabb9d53f70da87e6e0ed3d02a72e7d9ae9bfd1bf123c7a3"

Returns

The return object for this method is a hex-encoded integer representing the number of uncles in the specified block.

  • Example value: "0x1" (1 uncle)

Request

curl --location 'https://api.tatum.io/v3/blockchain/node/ethereum-mainnet/' \
--header 'Content-Type: application/json' \
--header 'x-api-key: {API_KEY}' \
--data '{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "eth_getUncleCountByBlockHash",
  "params": [
    "0x827d30e914a3adeefabb9d53f70da87e6e0ed3d02a72e7d9ae9bfd1bf123c7a3"
  ]
}'


// yarn add @tatumio/tatum

import { TatumSDK, Ethereum, Network } from '@tatumio/tatum'

const tatum = await TatumSDK.init<Ethereum>({network: Network.ETHEREUM})

const result = await tatum.rpc.getUncleCountByBlockHash('0x827d30e914a3adeefabb9d53f70da87e6e0ed3d02a72e7d9ae9bfd1bf123c7a3')

await tatum.destroy() // Destroy Tatum SDK - needed for stopping background jobs