Blockchain.info? I don't know what possibilities they offer, but as far as I know blockchain.info would stop broadcasting a transaction after a few days. That means it should have dropped from mempool a month ago, which clearly didn't happen.

No. Unless you want to lose $150.

DON'T. you'll make it worse... as of now most nodes have dropped both of his transactions
let him re-send with higher fee and use the correct inputs (without input from unconfirmed unspent)


yes, I suggest you to continue this on your own thread. check your thread.
and at this time you just need to re-create and broadcast new tx, make sure it's high enough


For OP, you should ask the sender to re-send with higher fee, most nodes have dropped your transaction too

Still I have tried to accelerate this unconfirmed transaction with the antpool's user prioritize transaction accelerator. I am really confuse that why you find delay by reading the above sr members replies. However, this could be last try from my side. Please check that below.
https://www.antpool.com/user/prioritiseTransaction.htm?m=savePrioritiseTx

Please wait for some hours and check back that whether your transaction is getting accelerated or not. Good luck...

Loyce, is it certain the sender is rebroadcasting? That is, no chance it bounces back and forth between nodes on the network?

Assuming it's from Core, perhaps a good feature to add would be to automatically alert the user on transactions that weren't confirmed in # days (configurable), and ask whether to keep trying or abort.

Try to see if child-pays-for-parent can work. Transfer the output of the unconfirmed transaction to yourself in a new transaction, paying a higher than usual fee. Enough to cover the unconfirmed transaction, plus the new one, and maybe some more, I don't know how much but see a calculation below.

An example of executing CPFP:
https://youtu.be/dUJyfz0QQXw?t=35s

You'd need the private key for that address:
https://bitcoin.stackexchange.com/a/5933

Be careful about exposing private keys. In case of doubt, move the sums quickly to a new address.

The stuck tx is 2.5KB, your new one is going to be 0.25KB, so let's say 2.8KB both.
Check here the current fees on the network.
I'm not sure if there's a need to pay the highest, and I don't know if there's a need to pay an extra beyond that.
But assuming 120 sat/byte for a quick confirm, that's 2800*120 = 0.0033'6000 fees.

For all I know, it might work for half that much or less, just with a longer delay. You can also wait for a time when the network is less congested and the fees are lower on average. Maybe someone with actual experience with CPFP could chime in about the fees.

Are you the sender or the receiver of this transaction?
Did you try any of the things from the "stuck transactions" thread linked earlier?

No, those are outputs (34 bytes). Inputs are just over 4 (for compressed addresses) to 5 (for uncompressed addresses) times bigger.

Correct. And most wallets also aim to be in the next block with "dynamic fees". The result is that "recommended fees" go up if the next block isn't found fast enough. In the end, blocks are still full, transactions are still slow, and we all pay more.

Accelerated . Fees is really low . Hope it works .

You can add it to http://confirmtx.com/, pay $4, and either get it confirmed within 24 hours, or you get a full refund.

As for the remainder of your $25 cash: you could host a New Years contest on the forum.

Keep you money. I accelerated your transaction for free at AntPool's free accelerator.

Paying for accelerations is risky because you can't never know which people (if any) was really responsible for the transaction confirmation.
I could just come here and say "accelerated". And if your transaction gets confirmed anytime soon, you would have payed me for nothing.