{"schema_version":1,"snapshot_id":"bfb936f5ceae4a7427f93961201723779c3021545a3c4222395e8678314c3e55","generated_at":"2026-10-17T21:51:24.907033+00:00","notice":"Potential GTM matches from directory metadata and model triage. Discovered does not mean vendor-verified or tested. Pending records remain under review; pricing and install details require primary sources.","canonical_url":"https://gtmmcps.com/discoveries/637cf602d9e1b68c0acf","record":{"id":"637cf602d9e1b68c0acf","name":"exhibit402-mcp","aliases":["exhibit402-mcp"],"description":"Pay with x402 (USDC on Base) to certify what a URL serves right now, and to re-verify existing certificates.\n\n**certify_url** ($1.00 fullpage / $0.50 viewport): two independent observers capture the URL at one frozen timestamp. Matching captures are tier CERTIFIED, differing ones are WITNESSED with a pixel-agreement percent and diff map. Evidence is stored permanently on Arweave and an ERC-721 certificate is minted on Base to the paying wallet.\n\n**verify_certificate** ($0.02): re-verifies any exhibit402 certificate by token id, Arweave manifest tx id, or job id, recomputing hashes from the act","repository_url":"https://github.com/dylancaponi/exhibit402-mcp","sources":[{"source_id":"smithery","url":"https://api.smithery.ai/servers","observed_at":"2026-10-17T21:40:22.481400+00:00","source_record_id":"ccf16174-88aa-4205-8813-241f5bef98ba","source_record_name":"dylan-caponi/exhibit402-mcp"}],"relevance_signals":["payment"],"classification":{"label":"pending","method":"not-yet-classified"},"catalog_ids":[],"verification_status":"discovered","vendor_ownership":"not-verified","execution_tested":false,"pricing_status":"not-verified","documentation_status":"not-verified"}}