Replace-By-Fee (RBF) is a node policy that allows an unconfirmed transaction in a mempool to be replaced with a different transaction that spends at least one of the same inputs and which pays a higher transaction fee.| Bitcoin Optech
Child Pays For Parent (CPFP) is a fee bumping technique where a user spends an output from a low-feerate unconfirmed transaction in a child transaction with a high feerate in order to encourage miners to include both transactions in a block.| Bitcoin Optech
Wondering what bitcoin addresses are; how to find or change them in your wallet or exchange; the differences between prefixes like 1, 3, or bc1; etc.?| Bitcoin Briefly