child pays for parent

Also: CPFP

A way to raise a stuck transaction's fee: spend one of its outputs in a child transaction with a high fee rate, so that miners have reason to include both. The parent must appear in the chain before the child, so a miner who wants the child's fee must confirm the parent too.

Used by: space.market

Sources #

1. Bitcoin Optech: child pays for parent (CPFP) · bitcoinops.org/en/topics/cpfp/