Chainlink CCIP 2.0 Introduces Cross-Chain Verifiers and Potential Delivery Stalls

Chainlink's CCIP 2.0 has introduced optional Cross-Chain Verifiers (CCVs), allowing token issuers to require third-party attestations before tokens are released on a destination chain. This mechanism, announced on September 28, places the verification step after tokens are locked or burned on the source chain but before they are minted or released at the destination. Chainlink warns that an unresponsive verifier could potentially stall the execution of a transfer.