Verification Contract

Canonical registry for verifying project NFTs. Other contracts and off-chain services can query verification status.

State & Configuration

• isVerified[tokenContract][tokenId] → bool.
• Authorized verifiers: AccessControl role VERIFIER_ROLE; admin can add/remove verifiers.
• Optional immutability flag to freeze verification after set, or versioned reasons for audits.

External Interfaces

• setVerified(tokenContract, tokenId, status, reason) (verifier/admin).
• isVerified(tokenContract, tokenId) view function for integration.

Verification Methods

• On-chain: Integrators call isVerified directly.
• API: An internal API endpoint returns verification status for UI and services.
• Dedicated Page: A web page lets users paste contract/token IDs and check verification status.

Events & Security

• VerificationChanged(tokenContract, tokenId, status, reason, msg.sender).
• Strict role gating; optional timelock for revocations; emit events for full auditability.