In the blockchain, every transaction has a transactionId where does this come from?


TXID is the sha256 hash of the signed transaction, used to uniquely identify a particular transaction.

When you create/sign a transaction that hash will be generated with your transaction.

| improve this answer | |
  • So it's the digital signature? Is there a comprehensive website that I can use to read up on bitcoin? From a programmers point of view. – Kyle Graham Mar 15 '18 at 20:28
  • Yeah, There's a book called Mastering Bitcoin by Andreas Antonopoulos , Best book ever. – Adam Mar 15 '18 at 20:29

The TXID is the hash of the transaction.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.