{"uid":"cap_qvXmjYa6-SIKW4RabB0iA","slug":"agentproof-timestamp-evidence-5b2afdc2","name":"AgentProof Timestamp Evidence","description":"AgentProof publishes Agent Transaction Passport™ and provides machine-paid evidence, provenance receipts, source comparison and change monitoring for autonomous transactions.","url":"https://agentproof.hatchable.site/api/paid/timestamp_evidence?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"claim":{"type":"string"},"email":{"type":"string"},"phone":{"type":"string"},"contactName":{"type":"string"},"previousSha256":{"type":"string"}}},"responseSchema":{"type":"json","example":{"ok":true,"tool":"timestamp_evidence","receipt":{"id":"uuid","integrity_sha256":"..."},"service":"AgentProof"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_mKZo8IsYz8XWjOxTmV77w","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Creates a cryptographic timestamp and integrity receipt for a given piece of content or transaction data, serving as machine-paid tamper-evident proof.","exampleAgentPrompt":"Create a tamper-evident timestamp receipt for this document hash — I need cryptographic proof it existed right now and hasn't been altered, including an integrity SHA-256 and a unique receipt ID I can store for audits.","exampleUseCases":[{"title":"Audit trail for autonomous agent actions","prompt":"My AI agent just completed a financial transaction on my behalf — can you generate a cryptographic timestamp receipt with an integrity hash so I have immutable proof of exactly what data was submitted and when?"},{"title":"Content provenance for published AI output","prompt":"I'm publishing an AI-generated report and need proof it existed in this exact form today — create a timestamp evidence receipt with a SHA-256 integrity hash I can reference if anyone disputes the content later."},{"title":"Compliance record for cross-agent data handoff","prompt":"Two of my agents just exchanged data in an automated workflow and I need a machine-readable provenance receipt timestamping the handoff — can AgentProof generate that with a unique receipt ID for our compliance logs?"}],"resultDescription":"Returns a JSON object confirming success, the tool name ('timestamp_evidence'), a receipt object containing a unique UUID and a SHA-256 integrity hash of the submitted content, and the service name. This acts as a verifiable, machine-paid proof-of-existence record.","failureModes":["Payment not received or insufficient USDC — returns 402 Payment Required","Malformed or missing content payload — returns 400 Bad Request","Service temporarily unavailable — returns 503","Receipt generation failure — ok:false with error detail","Hash mismatch if content was corrupted in transit"],"whenToPreferThis":"Choose this endpoint when an AI agent needs a cryptographically verifiable, machine-paid proof that specific content or transaction data existed at a precise point in time. It is preferable over general logging when tamper-evidence, auditability, and autonomous machine-to-machine trust are required. Ideal for compliance-sensitive autonomous workflows where a UUID-backed integrity receipt needs to be stored or referenced later.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T06:47:06.363Z","isFirstParty":false,"canonicalSlug":"agentproof-timestamp-evidence-5b2afdc2"}