eth_getTransactionByBlockNumberAndIndex - Optimistic Sepolia
Summary
Returns information about a transaction by block number and transaction index position.Parameters
1. Block Number Quantity or Tag
Hex block number, or the string 
latest, earliest or pendingExample: 
i.e. latest or pending2. Index Hex
Hex of tx position in the block
Example: 
i.e. 0x0, 0x1, 0x2...