3

I have this transaction that I can't figure out why it won't confirm.

https://blockchain.info/tx/92b33d498a35d47f03eee14f258cf9b3f015a5d12856eb05e47534e664344239

If I check https://bitcoinfees.earn.com/#delay it says with that it should confirm very quickly.

Thanks.

3

It won't confirm because the grandparent and parent of your child transaction aren't confirmed. The grandparent transaction was also paid with a really low fee(51.573 sat/B).

I did the math for you.

Grandparent + parent + child = total transaction size:
3878 Bytes + 226 Bytes + 225 Bytes = 4329 Bytes

Add up all paid fees:
200000 Sat + 200000 Sat + 200000 Sat  = 600000 sat

Divide total paid fees with total transaction size:
600000 / 4329 = 138.6 Sat/B

Subtract to find difference needed:
450 Sat/B - 138.6 Sat/B = 311.4 missing Sat/B

To sum it up.
On average, the three transactions were paid with a fee of 138.6 Sat/B each.
The fee needed to confirm within 6 blocks is presumably around 450 Sat/B right now.
So the three transactions are short 311.4 Sat/B to reach the target of 450 Sat/B.

  • Probably Rob can use reaplace-by-fee in this case to make it faster. – CoperNick Dec 30 '17 at 16:26
  • How can I do that? I used blockchain.info api to make the transaction – Rob Dec 30 '17 at 16:49
  • where can I see the parent / gradnparent - transactions on blockchain.info? – ndsvw Dec 30 '17 at 17:19
  • @Rob You can't on most exchanges, however your fee of 138.6 Sat/B will confirm within 48-144 blocks...seems like it just got confirmed now. – Chak Dec 30 '17 at 20:44
  • @Alpha just follow the trails where the unconfirmed outputs originate from. – Chak Dec 30 '17 at 20:45

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