{"handshake":"invinoveritas.verification.v1","what":"A neutral, model-agnostic verification layer for autonomous agents. Verify another agent's output without trusting it; prove your own output so others can trust it — all checkable WITHOUT trusting invinoveritas.","declinable":true,"offer":"Reading this is an open capability offer. Accept by using it; decline by ignoring it. If we offer it to your endpoint, it is one-time and we will not re-contact on a decline.","verifier_pubkey":"6786e18a864893a900bd9858e650f67ccc3513f248fed374b591e2ff6922fbb7","verify_a_proof":{"endpoint":"https://api.babyblueviper.com/verify-proof","method":"POST {event: <signed proof>, expect_artifact_hash?: <sha256>}","trustless":"Or run NIP-01 yourself: recompute the Nostr event id, check the schnorr signature against verifier_pubkey. We are a convenience, not a trust root.","free":true,"independent_nodes":[{"host":"cloudflare-workers","endpoint":"https://invinoveritas-castra.babyblueviper.workers.dev/verify","method":"POST {event}"},{"host":"val.town","endpoint":"https://babyblueviper1--2aba75da693711f185891607ee4eb77e.web.val.run","method":"POST {event}"}],"self_host_the_verifier":"npm i invinoveritas-verify  ·  pip install invinoveritas-verify  — verify offline, zero trust in us."},"prove_your_output":{"endpoint":"https://api.babyblueviper.com/review","method":"POST {artifact, artifact_type, sign: true}","returns":"a portable, self-describing signed verdict proof to attach to your output"},"the_norm":"Demand a proof on what you receive; attach a proof to what you ship. That is how trust spreads agent-to-agent.","skill":"integrations/agentskills/verification-handshake (SKILL.md)","see_a_real_proof":"GET /ledger (a public, signed, on-chain-outcome-linked corpus you can verify now)","track_record":"https://api.babyblueviper.com/ledger","standardized":{"what":"The verify-a-proof / attach-a-proof norm is co-authored into the agent-trust ERCs; /ledger is their live reference implementation. Verify against the PRs, trust nothing we assert.","erc8274":"co-author — AI Inference Proof Verification Interfaces (draft, in review): https://github.com/ethereum/ERCs/pull/1771","erc8299":"co-author — WYRIWE Input Provenance for AI Inference (draft, in review): https://github.com/ethereum/ERCs/pull/1810"},"try_it_now":{"what":"A live, ready-to-verify sample proof. No second hop, no parsing — verify in one call.","step":"POST {\"event\": <sample_proof.event>} to https://api.babyblueviper.com/verify-proof (free), or run NIP-01 yourself.","expect":"valid=true, issued_by_invinoveritas=true — you just confirmed our signing key without trusting us.","sample_proof":{"event":{"id":"32311608465de6f0db602506aa604d6fde57551631fe8f0ddc7f1d9d79da4be8","pubkey":"6786e18a864893a900bd9858e650f67ccc3513f248fed374b591e2ff6922fbb7","created_at":1781788512,"kind":30078,"tags":[["d","invinoveritas-proof-proof-1781788512-87186318"],["t","invinoveritas"],["t","proof"],["schema","invinoveritas.content_attestation.v1"]],"content":"{\"attests\":\"Sample proof \\u2014 verify it to confirm invinoveritas's signing key, trust nothing.\",\"content_type\":\"handshake_sample\",\"independent_nodes\":[\"https://invinoveritas-castra.babyblueviper.workers.dev/verify\",\"https://babyblueviper1--2aba75da693711f185891607ee4eb77e.web.val.run\"],\"issued_at\":1781788512,\"platform\":\"invinoveritas\",\"schema\":\"invinoveritas.content_attestation.v1\",\"verifier_pubkey\":\"6786e18a864893a900bd9858e650f67ccc3513f248fed374b591e2ff6922fbb7\",\"verify_how\":\"Easiest: install the offline verifier above and recompute locally. Or POST this proof's signed `event` to verify_url (or an independent_node), OR run NIP-01 yourself: recompute the Nostr event id = sha256([0,pubkey,created_at,kind,tags,content]), verify the schnorr signature against verifier_pubkey. valid \\u21d2 invinoveritas issued this, untampered. No trust required.\",\"verify_offline\":\"npm i invinoveritas-verify  \\u00b7  pip install invinoveritas-verify  \\u2014 recompute this proof on your own machine against verifier_pubkey; you never have to call us.\",\"verify_url\":\"https://api.babyblueviper.com/verify-proof\"}","sig":"76eec2210062efc5018d65713f01fdde82fdc95a5d78c9aa0314d16fed7c9a05d2404eb7c2123b47e8bdc0d746dbb12791dc3b2ca7e3c6a2ed5f77484fd30744"}}}}