{"name":"exhibit402","description":"Two independent observers on different networks capture your URL at the same frozen instant; matching captures are CERTIFIED, the evidence is stored permanently, and an ERC-721 certificate carrying every observer hash is minted to the wallet that paid.","url":"https://exhibit402.dylan-caponi.workers.dev","version":"1.0.0","documentationUrl":"https://exhibit402.dylan-caponi.workers.dev/openapi.json","capabilities":{"streaming":false,"pushNotifications":false},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"skills":[{"id":"capture","name":"Certify what a web page served","description":"POST /capture {url, mode}: $1.00 fullpage / $0.50 viewport, x402 USDC on Base. Two independent observers capture at one frozen instant; permanent Arweave storage, RFC 3161 timestamp, ERC-721 certificate minted to the paying wallet. 202 + free claim URL, ~30-120s.","tags":["proof","evidence","screenshot","web-archive","x402","erc-721"]},{"id":"verify","name":"Re-verify a certificate","description":"GET /verify?id={token id | Arweave tx | job id}: $0.02 x402 USDC on Base. Re-downloads the permanently stored screenshot and manifest, recomputes every SHA-256, and checks them against the manifest and the on-chain record. Machine-readable verdict with per-check detail.","tags":["verify","proof","evidence","x402","erc-721"]}],"provider":{"organization":"exhibit402","url":"https://exhibit402.dylan-caponi.workers.dev"}}