Protocol & Consensus • Estimated 35m
Pay to Anchor
protocol.pay-to-anchor
Pay to Anchor is a keyless witness output pattern that leaves a compact fee-bumping hook in a transaction so a later child can improve confirmation without requiring privileged key material.
Open visual node page
• Browse the concept library
Curated resources (3)
- BIP 433: Pay to Anchor (article) Draft specification for the keyless P2A output and its standard relay behavior.
- Bitcoin Optech: Pay to Anchor (article) Optech groups P2A with ephemeral anchors and documents the fee-bumping context.
- Mastering Bitcoin (book) Background on Bitcoin outputs, transaction fees, and child-pays-for-parent fee bumping.
Direct prerequisites (1)
Direct dependents (0)
Canonical site description: Interactive Bitcoin knowledge graph with prerequisites, curated resources, and structured topic pages.