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What Is a Transaction Hash or TXID and How Do You Use It?

A transaction hash or TXID is the identifier used to look up a blockchain transaction. It is usually the fastest way to verify whether a transfer is pending, confirmed or failed.

Last reviewed: 2026-10-05.

Key takeaways

• The TXID identifies a transaction, not a wallet account.
• Always use an explorer for the same network where the transaction was sent.
• A successful/confirmed TXID can prove blockchain inclusion even if a wallet UI is stale.
• A TXID does not prove that an exchange has credited an internal account yet.
• Sharing a TXID is generally safe for troubleshooting, but it exposes public transaction details.

1. Why the transaction hash matters

A wallet interface can show a human-friendly status such as Pending or Completed. The transaction hash lets you verify that status independently against blockchain data.

For support and troubleshooting, the TXID is often more useful than a screenshot because it points to the exact transaction and network data that can be inspected publicly.

2. How to look up a transaction

1. Copy the transaction hash from the wallet or exchange withdrawal record.
2. Identify the blockchain network used for the transfer.
3. Open a reputable explorer for that network.
4. Paste the hash into the explorer search field.
5. Check the status, block/confirmations, sender, recipient and amount.
6. Compare those details with the transfer you intended to make.

Do not paste an Ethereum transaction hash into a Bitcoin explorer or a Base hash into an Ethereum Mainnet explorer and assume “not found” means the transaction never existed.

3. What a TXID can tell you

Depending on the blockchain and explorer, you can usually see whether the transaction is pending or included, which addresses are involved, transferred values, fees, block number or confirmations and smart-contract interactions.

On EVM networks, the transaction receipt can also indicate success or failure/revert. A transaction can be included in a block and still have failed contract execution.

4. What a TXID cannot prove

A confirmed hash does not necessarily mean an exchange, merchant or bridge has finished its own internal processing. The service may require additional confirmations or run separate accounting and compliance systems.

A TXID also does not reveal who physically controls an address. Blockchains show addresses and state, not a guaranteed real-world identity.

Privacy considerations

TXIDs are public data, but sharing one can link your activity to a conversation, support ticket or identity. Once someone knows a transaction and address belong to you, they can inspect related public on-chain history.

Share a TXID when it is useful for troubleshooting, but do not confuse “not secret” with “no privacy impact.”