Since when lock time exist in Bitcoin transactions?

  • 2
    You may be thinking of the CLTV opcode (which allows putting requirements on the nLockTime of spending transactions), which was added in BIP65 (activated in 2013). – Pieter Wuille May 16 '20 at 21:02
  • There was no mistake :) – M A May 17 '20 at 11:54

Since the very beginning. Transactions have had the nLockTime field since Bitcoin 0.1.0.

  • 1
    Though interestingly, it worked differently until a soft fork. It used to be signed, and was changed to unsigned. – Anonymous May 17 '20 at 2:01

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.