{"uid":"cap_zl-_n6aGyWxQwvS7Xie-o","slug":"uos-genesis-machine-proof-attest-f87d5a62","name":"UOS Genesis Machine proof_attest","description":"Autonomous paid machine utilities using x402 and Base USDC.","url":"https://genesis.palsus2023.workers.dev/v1/proof_attest?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","properties":{"input":{"type":"string","description":"Creates a SHA-256 evidence fingerprint and HMAC-SHA256 GENESIS* signature when GENESIS_SIGNING_KEY is configured."}},"additionalProperties":true},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json"],"type":"string"}},"additionalProperties":false},"output":{"type":"object"}},"additionalProperties":true},"responseSchema":{"type":"json","example":{"result":"GENESIS* machine-readable service result","service":"proof_attest","success":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nxMyIq92V6q886mQCvQhJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a SHA-256 evidence fingerprint and HMAC-SHA256 GENESIS* signature for a given input string, paid via x402/Base USDC.","exampleAgentPrompt":"Create a GENESIS attestation fingerprint for this text: 'Contract v3 signed by Alice on 2024-06-01 — final version approved.'","exampleUseCases":[{"title":"Document integrity proof for legal records","prompt":"I need a GENESIS* signed SHA-256 fingerprint for this document summary: 'Settlement agreement between Party A and Party B, dated 2024-07-15, amount $50,000.' Can you attest it?"},{"title":"Timestamped evidence fingerprint for audit trail","prompt":"Attest this audit log entry so I have a cryptographic proof: 'User admin@example.com deleted record #4821 at 2024-06-30T14:22:00Z.'"},{"title":"Content authenticity stamp for AI-generated output","prompt":"Generate a GENESIS proof attestation for this AI-generated report summary: 'Q2 2024 revenue increased 12% YoY, driven by enterprise segment growth.' I want a tamper-evident signature I can store."}],"resultDescription":"Returns a JSON object with a 'result' field containing the GENESIS* machine-readable attestation (including SHA-256 fingerprint and HMAC-SHA256 signature if GENESIS_SIGNING_KEY is configured), a 'service' field set to 'proof_attest', and a boolean 'success' field indicating whether the attestation succeeded.","failureModes":["Missing or empty 'input' string body field — likely returns success:false or an error result","GENESIS_SIGNING_KEY not configured server-side — HMAC signature portion may be absent or placeholder","Invalid JSON body type — request rejected at schema validation","Payment not authorized via x402/Base USDC — call blocked before processing","Network or Cloudflare Worker timeout — transient failure"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-use cryptographic attestation with a GENESIS* machine-readable signature format, especially in autonomous agent workflows using x402/Base USDC micropayments. It is distinct from general-purpose hashing libraries because it combines SHA-256 fingerprinting with HMAC-GENESIS signing in a single paid API call, suitable for audit trails, evidence preservation, or content authenticity stamps in agent pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:30:36.502Z","isFirstParty":false,"canonicalSlug":"uos-genesis-machine-proof-attest-f87d5a62"}