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Author Topic: Beginner here with unconfirmed transaction. Please help  (Read 219 times)
mocacinno
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April 05, 2019, 09:41:53 AM
 #21

Seems like your transaction confirmed  Smiley

In case you ever want to do a cpfp with bitcoin core qt the next time you run into problems:
*warning*: I don't use the QT wallet, and i don't wanted to stop my daemon, so i used an altcoin wallet for this semi-walktrough... I hope their QT gui layout is the same as bitcoin core's. I also didn't have any unspent outputs i could work with...
- go to settings
- open options
- go to the wallet-tab
- enable: "coin control features" and "spend unconfirmed change"
- click on the send tab
- click on the button under the title "coin controll features" that lets you select your inputs
- select the unconfirmed unspent output you received as change from the hanging transaction and one second confirmed unspent output (you'll need this second unspent output to have sufficient funds for a big enough fee... If the change is/was sufficient, you could have done a rbf instead of a cpfp)
- it doesn't matter which address you fund with this CPFP transaction, as long as you manually pick a fee that's calculated with the following formula: (new fee) >= (((fee for fast confirmation of hanging tx) + (fee for fast confirmation of CPFP transaction) ) - (fee already payed for the hanging transaction))

You can use this tool for a fee estimation of both the hanging and the cpfp tx: https://coinb.in/#fees

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April 05, 2019, 10:25:27 AM
 #22

In case you ever want to do a cpfp with bitcoin core qt the next time you run into problems:
*warning*: I don't use the QT wallet, and i don't wanted to stop my daemon, so i used an altcoin wallet for this semi-walktrough... I hope their QT gui layout is the same as bitcoin core's. I also didn't have any unspent outputs i could work with...
That seems to be a fairly accurate representation of how Bitcoin Core is currently setup... and should work.

Obviously, the tricky part is calculating the correct fee Wink You really want to make sure you calculate it properly. If you're very desperate and you need a fast confirmation, overestimating is definitely better than underestimating... otherwise you might end up with TWO unconfirmed transactions left hanging! Shocked

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April 05, 2019, 09:33:08 PM
 #23

In case you ever want to do a cpfp with bitcoin core qt the next time you run into problems:
*warning*: I don't use the QT wallet, and i don't wanted to stop my daemon, so i used an altcoin wallet for this semi-walktrough... I hope their QT gui layout is the same as bitcoin core's. I also didn't have any unspent outputs i could work with...
That seems to be a fairly accurate representation of how Bitcoin Core is currently setup... and should work.

Obviously, the tricky part is calculating the correct fee Wink You really want to make sure you calculate it properly. If you're very desperate and you need a fast confirmation, overestimating is definitely better than underestimating... otherwise you might end up with TWO unconfirmed transactions left hanging! Shocked

Thats correct since the price of tx are depend on the status of the mempool and I believe it will be better if Bitcoin core tx fee can have the same features like electrum. However, the transaction was confirmed 15 hours ago.



I believe the above transaction accelerator or confirmtx which will allow the OP to pay some certain fee to miners if the previous is too small are the option the OP had since mocacinno believe rebroadcasting the transaction is not the best option.
Damn... ConfirmTx? Really?

They were confirmed as a scam months ago (maybe even a year ago). I’m not even sure if they are still up.

Rebroadcasting is usually totally useless. All it does is add the tx to specific nodes mempool. If the tx is already there, it doesn’t do anything. The tx with higher fee will always get confirmed first. That’s is no way an “acceleration”.
Wasn't aware of the situation. I mentioned the site because I used it last year with the viabtc and my transaction went through.

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nc50lc
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April 06, 2019, 04:06:38 AM
 #24

Seems like your transaction confirmed  Smiley
-snip-
He just got lucky, the average mempool size suddenly dropped to 10+mb that made his 1sat/byte tx possible for a 12-24hours-confirmation just as I mentioned earlier.

@maxttilt You can now lock the topic (lower-left button) after editing the title like "[SOLVED] Title".

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