{"uid":"cap_0an3HyNQDOVelDM4LM6VD","slug":"mimirapi-provenance-certificate-7c4c98eb","name":"MimirAPI Provenance Certificate","description":"Chain-of-custody license certificate for any digital asset: a SHA-256 content hash bound to issuer, subject, and license terms under an HMAC-SHA-256 signature. Deterministic, portable, and verifiable through the issuer while the current HMAC v1 profile is active — a receipt an agent can carry to record what it licensed, from whom, and on what terms.","url":"https://mimirapi.com/v1/provenance/certificate?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"license":{"type":"string"},"subject":{"type":"string"},"contentHash":{"type":"string","description":"SHA-256 hex of the asset"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_VzMqCtmPO1QiI1B_VDkUC","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Issues a chain-of-custody license certificate binding a SHA-256 content hash to an issuer, subject, and license terms under an HMAC-SHA-256 signature.","exampleAgentPrompt":"Issue a provenance certificate for the image with SHA-256 hash 'a3f1c9...', licensed under Creative Commons BY 4.0, with the subject set to 'alice@example.com' — I need a signed receipt I can carry to prove what I licensed and on what terms.","exampleUseCases":[{"title":"AI-generated image licensing record","prompt":"I just licensed an AI-generated image with SHA-256 hash 'd4e2b1a0...' under a commercial-use license, and the subject is my company 'Acme Corp' — can you issue a provenance certificate so I have a signed, verifiable receipt of that licensing transaction?"},{"title":"Document provenance for legal compliance","prompt":"We need to certify that the PDF with content hash 'f9c3a7...' was licensed to 'legal-team@lawfirm.io' under our Enterprise License Agreement — generate a chain-of-custody certificate so we have an auditable record for compliance."},{"title":"Agent-to-agent content licensing attestation","prompt":"My agent just acquired a dataset with hash 'b2d8e4...' from a data marketplace under a research-only license — create a provenance certificate with subject 'research-agent-007' so the agent can carry that receipt and prove it licensed the data legitimately."}],"resultDescription":"A structured license certificate containing the SHA-256 content hash, issuer identity, subject, license terms, and an HMAC-SHA-256 signature over those fields — serving as a portable, verifiable chain-of-custody receipt that can be presented to the issuer for verification while the HMAC v1 profile is active.","failureModes":["Invalid or malformed SHA-256 hex in contentHash — certificate rejected","Missing required fields (license, subject, or contentHash) — 400 bad request","Payment not settled via x402 protocol — 402 payment required","HMAC signing failure on issuer side — 500 internal error","Content hash format not conforming to hex encoding — validation error"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically signed, portable, auditable license receipt binding a specific digital asset (identified by its SHA-256 hash) to a named subject and license terms — especially in agentic workflows where an AI agent must carry proof of what it licensed and from whom. Prefer it over simple logging or database writes when you need issuer-verifiable integrity and portability of the certificate across systems.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:37:29.883Z","isFirstParty":false,"canonicalSlug":"mimirapi-provenance-certificate-7c4c98eb"}