Topic Hash Desk

Paste an event signature, get its topic0, or paste a log and see which event it matches.

1 · Signature → topic0

Event signatures (one per line; names and “indexed” allowed)

Uses the first signature line. Leave an indexed field empty for a wildcard.

Contract address

Look back (blocks, max 999)

Fetched logs appear here, decoded against the first signature. Or paste a log below.

Paste a log (JSON with topics and data)