Network, Relay & Client Sync • Estimated 55m

Child Pays for Parent (CPFP)

protocol.cpfp

Fee-bumping strategy where a child transaction incentivizes confirmation of a low-fee parent.

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Curated resources (3)

• Bitcoin Optech Topic: Child Pays For Parent (article) Operational use-cases and tradeoffs.
• Bitcoin Developer Guide: Transactions (article) Transaction chaining and fee dynamics.
• Bitcoin Optech Topic: Package Relay (article) Policy and relay mechanics relevant to ancestor/descendant fee package handling.

Direct prerequisites (1)

• Fee Market

Direct dependents (4)

• CPFP Carve-Out Policy
• Fee Sponsorship
• Lightning Anchor Outputs
• Package Relay

Canonical site description: Interactive Bitcoin knowledge graph with prerequisites, curated resources, and structured topic pages.