тут поможет только standalone-кошелек, запущенный с опцией
а приватный ключ можно дернуть из блокчейн.инфо
What can I do to speed-up the transaction’s confirmation?Nothing. The next best thing is to cancel and resend the transaction.
Make a note of the individual bitcoin address(es) that the unconfirmed transaction was sent from.
Run Bitcoin Core with the
-zapwallettxes option (or wait a few days until your wallet stops broadcasting the transaction and it falls out of the global transaction mempool)
Send all your bitcoins from the addresses recorded in step 1 to a new address with the recommended or higher than recommended fee.
Make original transaction again using the recommended fee.
What to watch out forSites that claim to "speed up your unconfirmed bitcoin transaction". From personal experience, these sites are either scams or just don't work.
DOUBLE PAYMENTS. If the addresses used in the original transaction have sufficient bitcoin in them to cover the transaction, it can always be completed at a later date. To avoid this, follow step 3 to empty the associated addresses and do not reuse them.
What is the recommended fee?
Transaction fees vary by the size of your transaction, and not all transactions are the same size. The fee for same sized transactions also depends on how busy the bitcoin network is at the moment. An estimate (at the time of original post) was between 11-20 satoshi/byte (0.00011-0.00020BTC/kB) but now can be much higher. Personally, I use the 3rd fastest setting on Bitcoin Core which dynamically updates the rate based on network congestion.
See
http://bitcoinfees.21.co/ for a live chart of suggested transaction fees