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Returns information about the 'Uncle' of a block by number and the Uncle index position.
While this method is supported, the BSC network uses the Proof of Staked Authority ( PoSA ) consensus mechanism which doesn't involve 'Uncle' blocks.
Hence all results from eth_getUncleByBlockNumberAndIndex will always return 0x0.


Command Shell
curl https://bsc-<network>
-H "Content-Type: application/json"
-d "{\"jsonrpc\":\"2.0\",\"method\":\"eth_getUncleByBlockNumberAndIndex\",\"params\": [\"0x29c\",\"0x0\"],\"id\":1}"
curl -X POST 'https://bsc-<network>' \
-H 'Content-Type: application/json' \
--data-raw '{"jsonrpc":"2.0","method":"eth_getUncleByBlockHashAndIndex","params": ["0xb3b20624f8f0f86eb50dd04688409e5cea4bd02d700bf6e79e9384d47d6a5a35","0x0"],"id":1}'
Request Parameters
  1. 1.
    BLOCK PARAMETER - An int block number in the form of hex, appended with 0x such as 0x6D7FE0, or pre-defined strings latest, earliest, pending.
  2. 2.
    UNCLE INDEX POSITION - a hex of the integer representing the uncle's index position in the block, appended with 0x such as 0x0.
Web3API's Composer accepts int block numbers, which will be auto-converted to a hex representation before being sent to a node.
Result Fields
BLOCK - A block object, or null when no block was found with the hash specified.