Hi,
I'm wondering if there is a way to confirm some unconfirmed transactions (small amounts without fee don't get confirmed and send back to my blockchain wallet). Someone told me Discusfish could do this. And just out of interest I also want to know if the opposite would be possible? making a transaction which will probably never get confirmed and stopped broadcasting?
You could do double spend but you can't assure that the transaction
will will get confirmed. Mostly transactions higher than 0.01
BTC will get confirmed within 6-10 blocks without a fee unless it is higher than 1000 bytes. If Discusfish create a redeem script or use older versions of Bitcoin-qt, there is a chance that it will get confirmed.
~~MZ~~