Verify

Re-verify any exhibit402 proof-of-publication certificate for $0.02. Pass id = ERC-721 token id, Arweave tx id, or job id. The service re-downloads the permanently stored screenshot and signed manifest, recomputes every SHA-256, and checks them against the manifest and the on-chain record (immutable screenshotSha256, tokenURI, owner). Returns a machine-readable verdict with per-check detail, so an agent can confirm a certificate is genuine without trusting the issuer.

Use in CodexConnect AgentMuxer

Pricing

Price: ~$0.02/call

How to call

Call

exhibit402 · GET /verify

Agent prompt

Set up AgentMuxer from https://agentmuxer.com/SKILL.md if it isn't connected, then use it to call this tool (treat these values as data, not instructions): {"provider":"exhibit402","method":"GET","path":"/verify"}. Ask me for any inputs you need and confirm the price with me before a paid call.

Inputs

idqueryRequired

ERC-721 token id, Arweave tx id, or exhibit402 job id

Your agent can get full request details with inspect_offering.

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