Transaction hash (TxID)
The unique ID of one crypto payment: a long string of letters and numbers.
In plain words
Every payment gets its own ID, like a receipt number. It is usually 64 characters long, sometimes starting with 0x.
Where to find it
- In a wallet app: open the payment in your history and look for "Transaction hash", "TxID" or "View on explorer".
- On an exchange: open your withdrawal history and look for "TxID".
Why it matters if you've been scammed
It is the starting point of every trace and every freeze request.