Cross-Chain Verifiers
Cross-Chain Verifiers (CCVs) are CCIP's pluggable verification layer. Each CCV attests that a source-chain message is valid before the destination chain executes it.
Most integrations use CCIP's default Committee Verifier without additional configuration. The pages below cover the verification models, interfaces and guarantees, and the trust and responsibility model for CCVs.
Pages
Cross-Chain Verifiers Overview
What CCVs are, how they fit into the message lifecycle, when to add custom or third-party verifiers, and how CCV requirements combine.
Verification Models
The CommitteeVerifier, CCTPVerifier, and LombardVerifier attestation flows, custom CCVs, and how the models
compare.
CCV Interfaces & Guarantees
The versioned resolver pattern, onchain and offchain interface requirements, optional access controls, and protocol guarantees.
Trust & Responsibility Model
Trust boundaries and responsibilities for default vs external CCV operators and integrators.