What Is TXID (Transaction ID)

TXID (Transaction ID) is a unique identifier assigned to every transaction in a blockchain network. It allows users to track, verify, and confirm cryptocurrency transfers in a transparent and immutable way. TXID is essential for checking transaction status, confirming payments, and resolving disputes in crypto transactions.

Table of Contents:

What Is TXID in Simple Terms

Simply put, TXID is a transaction number in the blockchain.

It works like:

• a receipt number
• a bank transfer reference
• or a payment confirmation code.

Every crypto transaction receives a unique TXID that cannot be changed or duplicated. Anyone can use it to verify that a transaction exists and has been processed by the network.

What Does a TXID look like?

A TXID is a long string of letters and numbers, for example:

4e9b2a8f3c9d7b1e6a5f4c2d9e8b7a6c5d4e3f2a1b0c9d8e7f6a5b4c3d2e1f0….. Example TXID format only (not a real transaction)

Key characteristics:

• usually 64 characters long
• generated automatically when a transaction is broadcast
• unique for every transaction, even if the amount and address are the same.

Why TXID Is Important

TXID plays a critical role in blockchain transparency and security.
TXID is used for:

• Checking transaction status — TXID allows users to see whether a transaction is pending, confirmed, or failed, as well as how many confirmations it has received.
• Confirming crypto payments — TXID serves as proof that a payment was sent and recorded on the blockchain, independent of wallets or platforms.
• Tracking transactions in a blockchain explorer — By entering a TXID into a blockchain explorer, users can view all transaction details, including sender, recipient, amount, fees, and timestamps.
• Resolving disputes — TXID is the primary reference used to investigate missing, delayed, or disputed transactions by verifying on-chain data.
• Communicating with customer support or payment providers — Support teams use TXID to quickly locate and analyze a specific transaction, reducing investigation time and errors.
• Accounting and financial reporting — TXID provides an immutable transaction reference for reconciliation, audits, and linking blockchain payments to internal accounting records.

Without a TXID, a crypto payment cannot be independently verified.

Where to Find a TXID

In a Crypto Wallet

Most wallets display TXID:

• in transaction history
• in transaction details
• after clicking on a specific transfer.

In a Payment Service Dashboard

Crypto payment providers usually show TXID:

• in payment details
• in transaction logs
• in downloadable reports.

In a Blockchain Explorer

If you know the wallet address, you can locate the transaction and copy its TXID directly from the explorer.

How to Check a Transaction Using TXID

Checking a TXID takes only a few steps:

1. Copy the TXID
2. Open a blockchain explorer for the correct network
3. Paste the TXID into the search bar
4. Review the transaction status and details

Once confirmed, a blockchain transaction is final and irreversible.

What Information Does a TXID Show?

What Information Does a TXID Show?
By searching a TXID in a blockchain explorer, you can view the complete on-chain details of a transaction recorded on a public blockchain:

1. Transaction status — shows whether the transaction is unconfirmed (pending), confirmed, failed, or replaced, depending on the blockchain network and transaction type.
2. Number of confirmations — indicates how many blocks have been added after the block containing the transaction, reflecting its level of finality and security.
3. Sender address(es) — displays the address or addresses from which the funds were sent. In UTXO-based blockchains (e.g., Bitcoin), a transaction may include multiple input addresses or none in the case of coinbase transactions.
4. Recipient address(es) — shows the address or addresses that received the funds, including change addresses or smart contracts where applicable.
5. Transferred amount — specifies the amount of cryptocurrency transferred to each recipient as part of the transaction.
6. Network fee — shows the transaction fee paid to network participants (miners or validators) for processing and including the transaction in a block.
7. Date and time — indicates when the transaction was first broadcast to the network and/or when it was included in a block, depending on the data provided by the blockchain explorer.
8. Block number (block height) — identifies the specific block in which the transaction was recorded, serving as a permanent reference in the blockchain ledger.

All TXID data is public, transparent, and independently verifiable on public blockchains.

This information applies to transactions conducted on public blockchain networks, including but not limited to Bitcoin, Ethereum, and Tron, where transaction data is publicly accessible and independently verifiable.

For privacy-focused blockchains or transactions utilizing shielding or anonymization mechanisms (such as Monero or shielded pools in Zcash), transaction visibility may be restricted or limited in accordance with the protocol design. As a result, certain transaction details may not be publicly available or verifiable through standard blockchain explorers.

TXID in Different Blockchains

TXID in Bitcoin

In Bitcoin, TXID is used to verify:

• BTC transfers
• confirmation count (commonly 3–6 confirmations, depending on the service).

Transaction id examples. Example TXID format only (not a real transaction)

Bitcoin txid (64 hex characters):

4b8e1f0c9c7a6a2d3f4e5a1187c9b1d0a2f4c4e5b6a8d8c9e0a1a2b7c4d5e6f7

TXID in Ethereum

In Ethereum, TXID shows:

• ETH transfers
• smart contract interactions
• gas fees and execution status.

Transaction id examples. Example TXID format only (not a real transaction)

Ethereum transaction hash (0x + 64 hex):

0x2a1f9b7cd2e8f1a0b4c5d6e7f5ab50c1d253f5a0b0c9d4e3f2a9b6c5d4e5f3a6

TXID in USDT Transactions

USDT operates on multiple blockchains. TXID depends on the selected network:

• ERC-20 (Ethereum)
• TRC-20 (Tron)
• other supported networks.

Important Note for USDT TXIDs

• A TXID is valid only within the blockchain network where the transaction was made.
• An ERC-20 TXID cannot be found on Tronscan.org
• A TRC-20 TXID cannot be found on Etherscan.io
• Always verify the network first before searching for a USDT transaction.

USDT on Ethereum (ERC-20)
Example TXID (Ethereum transaction hash):
0x8f3a2b9d7e4c1a6f5e0b2c9d4a7e1f6b8c0d3e9a2f5b7c4d6e8a1b9f3c2d

What you will see in the explorer:

• Transaction status (Success / Pending / Failed)
• Block number and confirmations
• Sender address (from)
• Recipient address (to – often a smart contract)
• USDT token transfer details
• Gas fee paid in ETH
• Timestamp of the transaction

In ERC-20 transactions, USDT transfers are recorded as token transfer events within an Ethereum transaction.

TXID vs Transaction Hash: Is There a Difference?

There is no difference.
TXID and transaction hash refer to the same identifier.
The term “transaction hash” is more technical, while “TXID” is commonly used in user interfaces and support communications.

Conclusion

TXID is a fundamental element of every cryptocurrency transaction. It ensures transparency, traceability, and trust within blockchain systems.
Understanding what TXID is and how to use it allows users and businesses to:

• verify crypto payments independently;
• confirm transfers;
• resolve disputes faster;
• operate securely in the crypto ecosystem.

TXID is the backbone of blockchain transparency and reliability.