Child Pays For Parent (CPFP) is a transaction fee mechanism in Bitcoin and other blockchain networks where a new transaction, called the “child,” includes a higher fee to expedite the confirmation of a previous unconfirmed transaction, referred to as the “parent.”
This method incentivizes miners to process both transactions together, overcoming delays caused by low transaction fees in the parent transaction.
CPFP is often used during periods of high network congestion or when users accidentally set insufficient fees for their initial transactions.
The cost of executing and verifying a transaction on a blockchain network is known as a transaction fee. Users frequently have to pay miners or validators a fee in order for them to prioritize and add their transactions to the blockchain.
Bitcoin, often referred to as "digital gold," is the first decentralized cryptocurrency created by a person or group of people known as Satoshi Nakamoto. Operating on a peer-to-peer network without the need for intermediaries, Bitcoin enables secure and transparent transactions that are recorded on a public ledger known as the blockchain.