What is a transaction hash ID (TxID)?

Tx Hash means Transaction Hash and is also known as Transaction ID (TxID). It consists of alphanumeric characters and is basically an identification number given for a blockchain transaction. Each and every single transaction that is conducted on a blockchain has this unique identifier. A transaction hash of Ethereum, for example, looks like this:

0xb4bc263278d3f77a652a8d73a6bfd8ec0ba1a63923bbb4f38147fb8a943da26d