How to find TXID and track transactions on-chain

Methods to Obtain Transaction ID

When you send cryptocurrency from a centralized exchange, the system automatically generates a unique identifier for this operation. On platforms like major cryptocurrency exchanges, this number (TXID) is displayed in the payment history section. By copying the obtained hash into a blockchain scanner — block explorer — you will be able to view all the details of the payment in real time.

You can also get information about the TXID in another way: if the funds are already on their way, the transfer data is available in the open blockchain registry. This means that anyone can check the payment status using a specialized block explorer.

What is a transaction identifier

TXID, also known as a transaction hash, is a cryptographic code that uniquely identifies each operation on the blockchain network. The system assigns it automatically when a payment is added to the distributed ledger.

To create this unique code, the SHA-256 algorithm is used. It takes all payment parameters — the sender's address, the recipient's address, and the amount of the transfer — and converts them into a 64-character hexadecimal number. This set of characters serves as the identifier.

Historical Examples of Famous TXIDs

The first operation in history on Bitcoin, performed by Satoshi Nakamoto for Hal Finney, received the following hash: F4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16

No less legendary is the pizza transaction, when two pizzas were paid for with bitcoins. Its TXID: Cca7507897abc89628f450e8b1e0c6fca4ec3f7b34cccf55f3f531c659ff4d79

Where to Find and Verify TXID

On centralized exchanges, the information about the code is located in the user's personal account under the withdrawal history section. By clicking on the identifier, the system will automatically open the record of this transaction in the blockchain explorer.

Block explorers such as blockchain.com or blockchair.com contain a complete archive of all payments ever made. By entering the TXID in the search bar of any of these services, you will receive complete information about the payment: status, number of confirmations, fees, and timestamps.

Practical Application of TXID

If you accidentally sent cryptocurrency to the wrong address or selected the wrong blockchain, the transaction code becomes the key to solving the problem. With it, the platform's support service can track the funds and attempt to recover them. While success is not guaranteed, having the TXID significantly increases the chances of retrieval.

The openness of the blockchain means that each transaction number leads to a complete payment history, including the addresses of the participants. This ensures the transparency of the system, although it does not directly disclose users' personal data.