What is a TxID?

The primary identifier you receive when transferring USDT from Binance to another platform is known as a Transaction ID (TxID) or transaction hash. This TxID is a unique alphanumeric string generated when your transaction is broadcast to the blockchain and included in a block. It serves as a digital fingerprint for your specific transaction, allowing both users and support teams to track, verify, and audit the transaction’s status and details using a blockchain explorer relevant to the network you selected (such as TRC20, ERC20, or BEP20)

Note: If you deposit from (or withdraw to) Binance, then you will get a only numeric TxID but with "off-chain" comment. No worries, you can still use this as a valid TxID for your deposit. Just copy and paste the numeric part of TxID.