exhibit402

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.

Skills

• Certify what a web page served
  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.
  proofevidencescreenshotweb-archivex402erc-721
• Re-verify a certificate
  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.
  verifyproofevidencex402erc-721

How to call

https://exhibit402.dylan-caponi.workers.dev

Listed in

Directories this entry was found in.