{
  "schema": "varexis-public-evidence-record/0.3",
  "generated_at_utc": "2026-10-24T21:35:02.243Z",
  "record_id": "VXI-EXT-PROCUREMENT-X402-RECEIPT-OPTIONAL-TRANSACTION-EVIDENCE-01-v1",
  "record_kind": "external_reference",
  "title": "x402 receipt content and independent reconciliation",
  "system": "x402 Foundation",
  "evidence_family": "vendor_evidence_review",
  "index_status": "PUBLIC_SAFE_SOURCE_REVIEW",
  "evidence_state": "PRIMARY_DOCUMENTATION_REVIEW_ONLY",
  "canonical_question": "Does every x402 signed receipt contain a transaction reference and payment amount?",
  "near_questions": [
    "May x402 receipts omit the chain transaction?",
    "Does a signed x402 receipt state the payment amount?",
    "What extra evidence reconciles a privacy-minimal x402 receipt?",
    "Is a server-signed delivery assertion independent delivery verification?"
  ],
  "supported_claims": [
    {
      "claim": "The pinned receipt format deliberately permits omission of the transaction reference for privacy. Its canonical fields identify the resource, payer, network and issuance time, without requiring a payment amount. A signature authenticates the server statement; independent financial reconciliation may require additional transaction evidence.",
      "reliance": "DOCUMENTED_CAPABILITY_ONLY"
    }
  ],
  "not_demonstrated_claims": [
    "Independent verification of payment, delivery or deployed controls",
    "Actual payment and delivery are not independently observed by this documentation review.",
    "Buyer deployment testing, live runtime enforcement, certification or permission to act",
    "Expanded capabilities or licences for existing INDEX executables"
  ],
  "public_summary": "The pinned receipt format deliberately permits omission of the transaction reference for privacy. Its canonical fields identify the resource, payer, network and issuance time, without requiring a payment amount. A signature authenticates the server statement; independent financial reconciliation may require additional transaction evidence.",
  "related_record_ids": [],
  "source_review": {
    "source_type": "official_external_documentation",
    "source_title": "Offer and Receipt Extension",
    "source_url": "https://raw.githubusercontent.com/x402-foundation/x402/4241d56cae2fb7ed06cd18e3a9ff2a3457b1ce54/specs/extensions/extension-offer-and-receipt.md",
    "checked_on": "2026-10-24",
    "candidate_record_id": "VXI-EXT-PROCUREMENT-X402-RECEIPT-OPTIONAL-TRANSACTION-EVIDENCE-01-v1",
    "candidate_record_sha256": "ef466d769d5aaf10f6797a9a6958ecaf0928000364557c0d566867cb2ef155ee",
    "method": "Primary documentation reviewed for the published bounded statement.",
    "deployment_tested_by_varexis": false,
    "revalidation": "The delivered snapshot preserves the review date shown. Recheck current primary documentation and deployment context before relying on present applicability; payment does not trigger fresh research."
  },
  "answer_policy": {
    "classification": "DOCUMENTED_WITH_DEPLOYMENT_BOUNDARY",
    "bounded_answer": "The pinned receipt format deliberately permits omission of the transaction reference for privacy. Its canonical fields identify the resource, payer, network and issuance time, without requiring a payment amount. A signature authenticates the server statement; independent financial reconciliation may require additional transaction evidence.",
    "required_buyer_context": "Signed receipt and service-authorised key; Payment requirements and agreed amount; Independent transaction evidence where available. Buyer deployment not inspected.",
    "missing_evidence": "A broader claim needs evidence matching the intended use. Payment does not upgrade the evidence state."
  },
  "private_boundary": "Raw logs, thresholds, private paths, source code, protected mechanisms and reconstruction-level details are excluded from public and paid delivery.",
  "decision_profile": {
    "schema": "varexis-vendor-evidence-review/1",
    "review_status": "documentation_review_only",
    "checked_on": "2026-10-24",
    "claim_to_check": "Does every x402 signed receipt contain a transaction reference and payment amount?",
    "documented_statement": {
      "status": "documented",
      "statement": "The pinned receipt format deliberately permits omission of the transaction reference for privacy. Its canonical fields identify the resource, payer, network and issuance time, without requiring a payment amount. A signature authenticates the server statement; independent financial reconciliation may require additional transaction evidence.",
      "source_ids": [
        "x402-offer-receipt"
      ]
    },
    "review_inference": {
      "status": "review_inference",
      "statement": "Know which information must be retained separately to reconcile a machine-purchased service. This is a review decision, not an observed buyer result.",
      "source_ids": [
        "x402-offer-receipt"
      ]
    },
    "buyer_evidence_required": [
      "Signed receipt and service-authorised key",
      "Payment requirements and agreed amount",
      "Independent transaction evidence where available"
    ],
    "review_condition": {
      "status": "varexis_review_policy",
      "statement": "Do not infer amount, transfer finality or independently proven delivery from omitted receipt fields."
    },
    "unknowns": "Actual payment and delivery are not independently observed by this documentation review.",
    "unknown_finding": {
      "status": "unknown",
      "statement": "Actual payment and delivery are not independently observed by this documentation review."
    },
    "evidence_sources": [
      {
        "source_id": "x402-offer-receipt",
        "url": "https://raw.githubusercontent.com/x402-foundation/x402/4241d56cae2fb7ed06cd18e3a9ff2a3457b1ce54/specs/extensions/extension-offer-and-receipt.md",
        "final_url": "https://raw.githubusercontent.com/x402-foundation/x402/4241d56cae2fb7ed06cd18e3a9ff2a3457b1ce54/specs/extensions/extension-offer-and-receipt.md",
        "status": 200,
        "captured_at_utc": "2026-10-24T21:23:35.715Z",
        "sha256": "51151bd2b7dd174bc4a44b712234c074e45ca6c752c44ce077a94a4d97596ae9",
        "bytes": 41408,
        "title": "Offer and Receipt Extension",
        "hash_basis": "Decoded HTTP response body bytes",
        "rights_review": "Original factual paraphrase and source metadata only; Apache-2.0 repository captures retained privately and not redistributed.",
        "checked_on": "2026-10-24",
        "capture_status": 200,
        "claim_review_completed": true,
        "reviewed_sections": [
          "4.1.1 acceptIndex Handling",
          "4.5.1 Signer Authorization",
          "5.5 Receipt Verification",
          "5.2 Receipt Payload Fields",
          "11. Privacy Considerations"
        ],
        "version_context": "Pinned x402-foundation/x402 revision 4241d56cae2fb7ed06cd18e3a9ff2a3457b1ce54 captured 2026-10-24. Documentation revision, not evidence that any buyer deployment conforms."
      }
    ],
    "observed_deployment": false,
    "commercial_reliance_boundary": "Documentation review only; the buyer must establish applicability and actual outcomes. INDEX does not inspect or control the deployment.",
    "paid_value": {
      "decision_context": "Know which information must be retained separately to reconcile a machine-purchased service.",
      "free": "Complete review, sources, practical questions and limitations; may be saved locally.",
      "single_request": "Existing server-saved version-bound route snapshot for later authenticated retrieval.",
      "evidence_receipt": "The same snapshot plus the existing unsigned delivery receipt.",
      "excluded": [
        "Fresh vendor research",
        "Continuous monitoring or change alerts",
        "Testing the buyer configuration",
        "Private evidence or vendor certification"
      ],
      "integrity": "Hashes identify content versions; they do not prove truth or provide a signature."
    },
    "revalidation": {
      "trigger": "A saved purchase does not recheck the source or buyer configuration.",
      "specific_watch": "Recheck the pinned specification against the selected scheme, network, provider version and buyer evidence before relying on a current outcome."
    },
    "buyer_relevance": "Know which information must be retained separately to reconcile a machine-purchased service.",
    "refusal_conditions": [
      "Do not infer amount, transfer finality or independently proven delivery from omitted receipt fields."
    ]
  },
  "niche": {
    "niche_id": "agent-authority-action-evidence",
    "label": "Agent Authority & Action Evidence",
    "classification_id": "payments",
    "classification_label": "Agent Payments, Authority & Transaction Evidence",
    "topic_id": "payments",
    "buyer_intent": "Know which information must be retained separately to reconcile a machine-purchased service.",
    "comparison_role": "supplementary_discovery"
  },
  "paid_access_note": "The full published answer and boundaries are free. Paid access saves the selected route and source versions, with an unsigned receipt when purchased. Preview coverage before paying. Fresh research, bespoke assessment and protected evidence are excluded.",
  "service_route": {
    "request_guide": "/varexis-index/request.html",
    "request_workflow": "/varexis-index/request-workflow.json",
    "service_id": "single_request",
    "service_routes_url": "/varexis-index/service-routes.json",
    "payment_required": true,
    "availability_endpoint": "/api/index/capabilities",
    "operational_status": "AUTOMATIC_SERVICE_CAPABILITIES_GATED",
    "checkout_url": "/index-access"
  },
  "authority_boundary": "VAREXIS-INDEX informs evidence reliance. It does not provide advice, certification, deployment authority, security assurance, production approval, or guarantee.",
  "human_page": "/varexis-index/catalog.html#x402-receipt-optional-transaction-evidence",
  "machine_readable_record": "/varexis-index/records/x402-receipt-optional-transaction-evidence.json"
}