I got a transaction that is still not confirmed for about one week, and I can see a field called "Lock Time" that says:

Lock Time Block: 419382 https://blockchain.info/en/tx/ea445ae61c2906d43f8f8d73cfef2caefe3d63ae504da31a6a829cc35527faf6

What does that mean and how long do I have to wait until my transaction gets confirmed?

3 Answers 3


A specified locktime indicates that the transaction is only valid after a given blockheight.

Since the locktime field indicated is 419382 and currently the latest blockheight as of 12th July 2016 1108 (AEST) is 420352 the transaction is now valid and can be included in a block by any miner that chooses to do so.

  • 2
    This is incorrect. The nLockTime field (for height based logic) gives the largest height that cannot include the transaction. Mar 9, 2021 at 0:11
  • 1
    If i changed it to "A specified locktime indicates that the transaction is only valid after a given blockheight", is that correct?
    – rny
    Mar 12, 2021 at 10:22
  • In that sense, a transaction with "locktime": 3983071408 maybe not "unlock" in our lifetime!?! xref: the coinbase transaction of the block with height 714460. Dec 27, 2021 at 17:56

Lock Time refers to at which block height the transaction can be included by a miner. In this case 419382 has well passed, so it can be included in any block at this point. Your transaction is currently not confirmed since you have 5 inputs, and it was sent with zero fee. It may take a little while. Not sure where you are coming up with the 1 week part, this transaction was created today.

  • I'm guessing the user sent the transaction a second time after 419382, since otherwise nodes would not relay it. That's why the "Received Time" on blockchain.info is 7/11/2016.
    – Jestin
    Jul 12, 2016 at 13:00


Part of a transaction which indicates the earliest time or earliest block when that transaction may be added to the block chain.

Bitcoin.org glossary

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