{
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  "generated_at_utc": "2026-10-24T23:11:13.073Z",
  "record_id": "VXI-EXT-PROCUREMENT-CLOUDEVENTS-TIME-FALLBACK-POLICY-01-v1",
  "record_kind": "external_reference",
  "title": "CloudEvents occurrence-time interpretation",
  "system": "CloudEvents v1.0.2",
  "evidence_family": "vendor_evidence_review",
  "index_status": "PUBLIC_SAFE_SOURCE_REVIEW",
  "evidence_state": "PRIMARY_DOCUMENTATION_REVIEW_ONLY",
  "canonical_question": "Does CloudEvents time always represent the actual time the underlying action happened?",
  "near_questions": [
    "Can CloudEvents time be a generated fallback timestamp?",
    "What if the producer does not know the CloudEvent occurrence time?",
    "Must producers sharing a CloudEvents source use the same timestamp policy?",
    "Can CloudEvents time alone order actions across systems?"
  ],
  "supported_claims": [
    {
      "claim": "CloudEvents 1.0.2 makes time optional. If the occurrence time cannot be determined, a producer may use another time, such as the current time, provided producers sharing that source use a consistent determination policy. A timestamp must therefore be interpreted with that source policy; presence of time alone does not establish the actual action instant or cross-system order.",
      "reliance": "DOCUMENTED_CAPABILITY_ONLY"
    }
  ],
  "not_demonstrated_claims": [
    "Clock accuracy, fallback use and actual action time are unknown.",
    "No verified business outcome, complete event capture, deployment certification or authority to act.",
    "Buyer deployment testing, live runtime enforcement, certification or permission to act",
    "Expanded capabilities or licences for existing INDEX executables"
  ],
  "public_summary": "CloudEvents 1.0.2 makes time optional. If the occurrence time cannot be determined, a producer may use another time, such as the current time, provided producers sharing that source use a consistent determination policy. A timestamp must therefore be interpreted with that source policy; presence of time alone does not establish the actual action instant or cross-system order.",
  "related_record_ids": [],
  "source_review": {
    "source_type": "official_external_documentation",
    "source_title": "CloudEvents v1.0.2 — spec",
    "source_url": "https://raw.githubusercontent.com/cloudevents/spec/fc1f6f31f5f011a72183f1bcea20c987cb683ade/cloudevents/spec.md",
    "checked_on": "2026-10-24",
    "candidate_record_id": "VXI-EXT-PROCUREMENT-CLOUDEVENTS-TIME-FALLBACK-POLICY-01-v1",
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    "method": "Primary documentation reviewed for the published bounded statement.",
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    "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": "CloudEvents 1.0.2 makes time optional. If the occurrence time cannot be determined, a producer may use another time, such as the current time, provided producers sharing that source use a consistent determination policy. A timestamp must therefore be interpreted with that source policy; presence of time alone does not establish the actual action instant or cross-system order.",
    "required_buyer_context": "Source timestamp policy and clock assumptions; Original event time and receipt observations; Independent action chronology or correlation evidence. 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 CloudEvents time always represent the actual time the underlying action happened?",
    "documented_statement": {
      "status": "documented",
      "statement": "CloudEvents 1.0.2 makes time optional. If the occurrence time cannot be determined, a producer may use another time, such as the current time, provided producers sharing that source use a consistent determination policy. A timestamp must therefore be interpreted with that source policy; presence of time alone does not establish the actual action instant or cross-system order.",
      "source_ids": [
        "ce-spec"
      ]
    },
    "review_inference": {
      "status": "review_inference",
      "statement": "Avoid reconstructing action chronology from an undocumented timestamp basis. This is a review judgment, not an observed execution or deployment result.",
      "source_ids": [
        "ce-spec"
      ]
    },
    "buyer_evidence_required": [
      "Source timestamp policy and clock assumptions",
      "Original event time and receipt observations",
      "Independent action chronology or correlation evidence"
    ],
    "review_condition": {
      "status": "varexis_review_policy",
      "statement": "Refuse exact occurrence-time or cross-system-order claims without the source time policy."
    },
    "unknowns": "Clock accuracy, fallback use and actual action time are unknown.",
    "unknown_finding": {
      "status": "unknown",
      "statement": "Clock accuracy, fallback use and actual action time are unknown."
    },
    "evidence_sources": [
      {
        "source_id": "ce-spec",
        "url": "https://raw.githubusercontent.com/cloudevents/spec/fc1f6f31f5f011a72183f1bcea20c987cb683ade/cloudevents/spec.md",
        "final_url": "https://raw.githubusercontent.com/cloudevents/spec/fc1f6f31f5f011a72183f1bcea20c987cb683ade/cloudevents/spec.md",
        "status": 200,
        "captured_at_utc": "2026-10-24T22:53:28.460Z",
        "sha256": "e327435c858d19fd171e4ab9781a01fc22dfa949d23c4220976529ebd16a1aa3",
        "bytes": 25542,
        "title": "CloudEvents v1.0.2 — spec",
        "hash_basis": "Decoded HTTP response body bytes",
        "rights_review": "Original bounded paraphrase; source bodies are captured privately and not redistributed. Repository Apache-2.0 licence reviewed.",
        "checked_on": "2026-10-24",
        "capture_status": 200,
        "claim_review_completed": true,
        "reviewed_sections": [
          "Terminology: event; required id and source",
          "Source and producer terminology; required source",
          "Optional time",
          "specversion; dataschema",
          "Event Data optionality; JSON Handling of data"
        ],
        "version_context": "CloudEvents v1.0.2; extension status must be checked individually; pinned cloudevents/spec revision fc1f6f31f5f011a72183f1bcea20c987cb683ade. Source documentation is not independent evidence of buyer deployment behaviour."
      }
    ],
    "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": "Avoid reconstructing action chronology from an undocumented timestamp basis.",
      "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 source, deployed version, selection policy and retained operation results before relying on a current outcome."
    },
    "buyer_relevance": "Avoid reconstructing action chronology from an undocumented timestamp basis.",
    "refusal_conditions": [
      "Refuse exact occurrence-time or cross-system-order claims without the source time policy."
    ]
  },
  "niche": {
    "niche_id": "agent-authority-action-evidence",
    "label": "Agent Authority & Action Evidence",
    "classification_id": "audit",
    "classification_label": "Audit, Provenance & Evidence Accountability",
    "topic_id": "audit",
    "buyer_intent": "Avoid reconstructing action chronology from an undocumented timestamp basis.",
    "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#cloudevents-time-fallback-policy",
  "machine_readable_record": "/varexis-index/records/cloudevents-time-fallback-policy.json"
}