> For the complete documentation index, see [llms.txt](https://docs.usdfi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.usdfi.com/getting-started/understanding-transaction-hashes.md).

# Understanding transaction hashes

A transaction hash, also known as a transaction ID, is a **unique string of characters** that is assigned to every transaction that occurs on the blockchain. This hash can be used to track and verify the status of a particular transaction. To view the details of a transaction, users can use a tool called a block explorer, such as [etherscan.io](https://etherscan.io/) or [bscscan.com](https://bscscan.com/). 

These tools allow users to enter the transaction hash and view information about the transaction, including the amount, the sender and recipient addresses, and the status of the transaction.