txid (transaction hash)
TON transaction hash: SHA-256 of the serialised transaction body. The unique identifier used by explorers and APIs; format is 64 hex chars or a 44-char base64-url string.
Aliases: tx-id, tx hash, transaction hash
txid (transaction hash) is the SHA-256 hash of a TON transaction’s serialised content, uniquely identifying it across the whole network. Format: 64 hex characters (abc123...) or a 44-char base64-url string (AbC...=).
Where to find it
- Tonviewer:
https://tonviewer.com/transaction/<txid>— every phase (compute, action, storage) and the final operation semantics. - Tonscan:
https://tonscan.org/tx/<txid>— the same, in a more raw view. - APIs (toncenter, tonapi) return txid alongside lt and utime.
txid vs message hash
These often get confused: message hash ≠ transaction hash. A transaction has an inbound message, an execution, and produces outbound messages. Each has its own hash. To trace a user-facing operation you usually need the txid + lt of the account that started the chain.