Decoded transaction

A decoded transaction is a blockchain transaction whose raw input data and event logs have been translated into structured, human-readable fields using the relevant contract ABI.

Raw transactions are opaque hex. Decoding applies the contract ABI to turn calldata and logs into named methods and parameters (e.g. a 'Transfer' event with from, to, amount). Decoded transactions and logs save developers from maintaining ABIs and parsers themselves, and are the basis for accurate wallet history, analytics and event-driven systems.