Decoded log

A decoded log is an event log that has been interpreted against the emitting contract's ABI, turning its raw topics and data bytes into named parameters with their proper types.

A raw log is hex topics and a data blob; on its own it is unreadable. Decoding applies the contract ABI to resolve topic0 to an event name and unpack the remaining topics and data into named arguments — for a Transfer that means from, to and value. Building this yourself means collecting ABIs and handling edge cases. Our API returns decoded logs alongside the raw entry from the archive RPC, so you get named fields directly while retaining the original for verification.