HOW TO READ TRANSACTION HASHES - A GUIDEA TXID is a cryptographic hash of a blockchain transaction’s raw data. This produces a unique identifier that can be used to identify, track, and prove the existence of a transaction.When given a TXID, Arkham will provide various information about the status of a transaction, who it was sent from, and who it was sent to. Check out our whole article on TXIDs below: ...