What is a hash (TXID) of a transaction?

TXID (Transaction ID, transaction hash) is a unique identifier of a cryptocurrency transaction — a kind of “passport” of the transfer that allows it to be accurately identified and verified on the blockchain of a specific cryptocurrency.

What a TXID is:

a unique sequence of alphanumeric characters;
automatically assigned to every cryptocurrency transaction;
cannot be changed or forged once recorded on the blockchain;
allows tracking the transaction status in a public ledger.

When a TXID is used:

when a transaction confirmation is delayed;
if funds have not been credited to the recipient’s wallet;
to check the number of network confirmations;
when contacting the support service of an exchange or platform.

Why you should check a transaction status:

to verify whether the transaction was broadcast to the network;
to confirm if it has been validated by miners or validators;
to determine the current processing stage of the transfer;
to rule out technical issues or network delays.

How to check a TXID:
To track the transaction status, use dedicated blockchain explorers that display full transaction details, including the amount, sender and recipient addresses, number of confirmations, and the current status of the transaction.