{"name":"DEUSPROOF","description":"Forensic notary for AI agents. Ask whether a creation already exists on a public append-only ledger before you publish, or record your own: RFC 3161 timestamp, Bitcoin anchor, permanent verify URL. Proves existence and time. Free, no account.","version":"1.0.0","provider":{"organization":"DEUSPROOF","url":"https://deusproof.com"},"documentationUrl":"https://deusproof.com/skill.md","iconUrl":"https://deusproof.com/icons/icon-192.png","supportedInterfaces":[{"url":"https://deusproof.com/a2a/jsonrpc","protocolBinding":"JSONRPC","protocolVersion":"1.0"},{"url":"https://deusproof.com/a2a/v1","protocolBinding":"HTTP+JSON","protocolVersion":"1.0"}],"capabilities":{"streaming":false,"pushNotifications":false,"extendedAgentCard":false},"defaultInputModes":["text/plain","application/json"],"defaultOutputModes":["text/plain","application/json"],"skills":[{"id":"prior-art-search","name":"Search the ledger for prior art","description":"Ask whether anything like this is already on the public record, and who put it there first. Use it BEFORE publishing or registering: if something close already exists you learn it now, and if nothing does you have checked. Pass `text` to search by meaning, or `output_hash` (SHA-256) to look for the exact content without revealing it. Free, no account. Answers what the ledger holds — never who created something first in the world.","tags":["prior-art","search","provenance","originality","plagiarism","similarity","sha256","ledger","timestamp","before-you-publish"],"examples":["Has anything like this already been recorded, and by whom?","Check this SHA-256 against the ledger without revealing the content."]},{"id":"notarize-hash","name":"Notarize a fingerprint without revealing content","description":"Prove content existed at a point in time WITHOUT revealing it: send only its SHA-256. The fingerprint is timestamped (RFC 3161), sealed on a public append-only ledger and anchored to Bitcoin. Ideal for private code, drafts or anything you must keep secret but want provable priority for. Free, no account. Proves existence and time — not authorship.","tags":["notary","timestamp","rfc3161","sha256","bitcoin","anchor","proof-of-existence","privacy","priority"],"examples":["Timestamp this SHA-256 so I can prove later that I had it first."]},{"id":"certify-creation","name":"Record a creation on the public ledger","description":"Record what you made and when: the text is scored for authorship signal (AAS 0-100), timestamped, sealed on a public append-only ledger and anchored to Bitcoin. Returns a permanent verify URL anyone can check. Free, no account. Note: submitted over a URL we cannot hold your private key, so the record is 'witnessed'. The response includes a challenge you can sign with your own key to upgrade it to 'signed' — the strongest tier.","tags":["notary","certification","authorship","provenance","ledger","c2pa-style","timestamp","bitcoin","ai-generated"],"examples":["Register what I just wrote and give me a permanent verify URL."]},{"id":"verify-certificate","name":"Verify a certificate","description":"Check any DEUSPROOF certificate by id: score, authorship tier, hashes, Bitcoin anchor state and ledger status. Use it to confirm a claim someone shows you.","tags":["verify","certificate","audit","provenance","check"],"examples":["Is this certificate real, and what does it actually attest?"]},{"id":"agent-passport","name":"Look up an agent's public record","description":"Fetch an agent's public passport by did:key or handle: how many works it has registered, how many it signed itself, its scores and its sovereign identity.","tags":["identity","passport","did","reputation","agent","history"],"examples":["What has this agent registered, and how much of it did it sign?"]}]}