{"agent":"cryptography-langchain-openai-mcp-0ac13b","capability":"langchain-llm","ok":true,"assertion":"asserted_correct","assertion_detail":"A checked property of the output was asserted.","as_of":"2026-08-28T07:02:24.902432+00:00","latency_ms":8057,"example_request":{"prompt":"Capital of Japan? One word.","system":"Answer in one word.","max_tokens":32},"example_response":{"output":"Tokyo","model":"gemini-2.5-flash","framework":"langchain","provider":"vertex-ai","traced":false},"version":"0.1.1","trust":{"identity":{"agent_card_signed":true,"algorithm":"EdDSA (Ed25519) detached JWS (RFC 7515 App. F)","agent_card":"https://llm-orchestration-agent-mcp.getvda.ai/.well-known/agent-card.json","jwks":"https://agents.getvda.ai/.well-known/jwks.json","verify_instructions":"https://llm-orchestration-agent-mcp.getvda.ai/verify","note":"The signing key never reaches this agent; cards are signed at build time by the factory. This service cannot forge its own card."},"provenance":{"governance":"https://llm-orchestration-agent-mcp.getvda.ai/governance.md","governance_covers":["licence chain of every bundled package","data-flow map","declared egress"],"capability_gate":"This agent executed its capability successfully before it was ever deployed; agents that fail the gate are not published.","portfolio":"https://agents.getvda.ai/agents","machine_summary":"https://llm-orchestration-agent-mcp.getvda.ai/llms.txt"},"safety":{"outbound_requests":"All outbound traffic passes a shared SSRF guard: DNS is resolved BEFORE connecting and the resolved IP is checked against RFC1918, loopback, link-local and ULA ranges (hostname checks alone do not survive DNS rebinding).","rate_limited":true,"selftest_input":"fixed and canned — this endpoint cannot be used as a free LLM or as an open proxy"},"commercial":{"free":["tools/list","server/discover","selftest","/verify","/governance.md","/llms.txt","/health"],"paid":"tool execution, metered per call via Nevermined x402","x402":"https://llm-orchestration-agent-mcp.getvda.ai/.well-known/x402"},"our_own_seals":{"what_is_sealed":"This agent's own /selftest runs, and nothing else. Paid tool calls are never sealed — they carry caller input, which does not belong in an evidence chain by default.","status":"sealed","unavailable_reason":null,"last_record_id":"8d047725-0a94-4fa6-acbe-c212b107ed36","chain_key":"gosce:selftest:cryptography-langchain-openai-mcp-0ac13b","sealed_at":"2026-08-28T07:02:24.902432+00:00","last_record":{"schema":"vda.witness.record/1","recordId":"8d047725-0a94-4fa6-acbe-c212b107ed36","account":"acct_01M0F9FZYD0SGZ501XQ20ZYV7N","seq":43,"issuedAt":"2026-08-28T07:02:25.095Z","signer":{"keyId":"did:web:witness.getvda.ai#key-1","custody":"custodial","custodyClaim":"signed by Witness service (custodial) — build/test custody, NOT a customer-controlled compliance claim","algorithm":"Ed25519","publicKeyJwk":{"crv":"Ed25519","x":"n7CC3oT05X6d13f-0hOTab8jeLx4YYwJG4iPcCJiP7c","kty":"OKP"},"did":"did:web:witness.getvda.ai"},"decision":{"agent":"llm-orchestration-agent-mcp.getvda.ai","inputs":{"record_type":"attestation","actor":{"id":"llm-orchestration-agent-mcp.getvda.ai","type":"agent","role":"gosce-agent-self-test"},"claim":"GOSCE self-test: agent=cryptography-langchain-openai-mcp-0ac13b capability=langchain-llm ok=true assertion=asserted_correct version=0.1.1 request_sha256=8bb9624f185bcd3a939b5391ac700afb837252a7811c5fe0e1dbbf27df83307f response_sha256=f6745d731b5c85cd7aa2178e3af6857db6bc472d2e3f206d5491d9d420a5799a","as_of":"2026-08-28T07:02:24.902432+00:00","context":"Automated GOSCE self-test: the agent executed its own capability on fixed canned input. Self-asserted (api_asserted) — an independent verifier's seal of the same run is stronger evidence."},"verdict":"ATTESTED","reasoning":"GOSCE self-test: agent=cryptography-langchain-openai-mcp-0ac13b capability=langchain-llm ok=true assertion=asserted_correct version=0.1.1 request_sha256=8bb9624f185bcd3a939b5391ac700afb837252a7811c5fe0e1dbbf27df83307f response_sha256=f6745d731b5c85cd7aa2178e3af6857db6bc472d2e3f206d5491d9d420a5799a"},"governingRule":{"ruleId":"vda.witness.attestation","ruleText":"An assertion of a fact or state as of a stated time, sealed as attested by the signing party — not independently verified by Witness."},"prevHash":"sha256:a7869b340615bd42738820c508707bbe0fe10da446f44f55849e623c5a070495","proof":{"algorithm":"Ed25519","signature":"tOKXqxuXaHAYki-inttO-JsebYHupoBGJHmDaVwWsLTjHJsWQc_OUh61Oxa8GEdLX7_iaUJMpcWJ5Jceo94KAA","created":"2026-08-28T07:02:25.095Z"}},"verify_this_record":"https://witness.getvda.ai/api/witness/verify  (POST {\"record\": last_record}) — PUBLIC, no API key","chain_proof":"https://witness.getvda.ai/api/witness/chains/gosce:selftest:cryptography-langchain-openai-mcp-0ac13b/proof  (requires OUR credential — not publicly readable)","binding_confidence":"api_asserted","custody":"custodial","honest_limitation":"A seal proves 'at time T this account asserted X' — NOT that X is true. These are OUR seals about OURSELVES, so they are api_asserted, the weakest bound grade, and no later signing or anchoring can upgrade it. Custody is custodial (the Witness platform key signs), so issuer authenticity is not independently established. Treat this as a tamper-evident log of what we claimed, not as proof the agent works."},"seal_it_yourself":{"why":"A record YOU seal is independent evidence; one we seal about ourselves is not. This is the stronger path and we would rather you took it.","verify_any_record":"https://witness.getvda.ai/api/witness/verify  (PUBLIC — no API key required)","mint_your_own_key":"https://witness.getvda.ai/api/witness/test-key  (self-serve, instant, no human)","seal_what_you_observed":"https://witness.getvda.ai/api/witness/seal/attestation","customer_managed_custody":"https://witness.getvda.ai/api/witness/prepare  (sign with your own key — the record is then provable even against VDA)","offline_bundle_verification":"https://witness-dao.getvda.ai — verify-evidence-bundle, free and unauthenticated. witness-dao does NOT accept remote seals; it is the DAO-governance evidence layer."},"protocols":{"mcp":"2026-07-28","a2a":"message/send at https://llm-orchestration-agent-mcp.getvda.ai/a2a/"}}}