{
  "schema": "varexis-public-evidence-record/0.3",
  "generated_at_utc": "2026-10-16T12:55:40.483Z",
  "record_id": "VXI-EXT-PROCUREMENT-BIGQUERY-HISTORY-01-v1",
  "record_kind": "external_reference",
  "title": "BigQuery deletion: Recovery windows remain material",
  "system": "Google BigQuery",
  "evidence_family": "vendor_evidence_review",
  "index_status": "PUBLIC_SAFE_SOURCE_REVIEW",
  "evidence_state": "PRIMARY_DOCUMENTATION_REVIEW_ONLY",
  "canonical_question": "Does deleting a BigQuery table immediately remove all retained history?",
  "near_questions": [
    "Can deleted BigQuery data remain recoverable?",
    "Which time-travel window applied at deletion?",
    "Does extending the window later restore expired history?",
    "Is fail-safe the same as normal time travel?",
    "Can I query every fail-safe version directly?",
    "What permissions are needed for recovery?",
    "Was the dataset or just a table deleted?",
    "Are snapshots and exports separately retained?",
    "Does a missing table prove erasure?",
    "Which deletion timestamp should be recorded?",
    "What evidence supports the retention statement?",
    "Can I preserve the reviewed recovery-window basis?"
  ],
  "supported_claims": [
    {
      "claim": "Changed or deleted table data remains within the configured time-travel window, followed by a separate fail-safe period. A deleted table uses the window in force at deletion; increasing the setting later does not simply extend that earlier deletion's recovery window. These are retention boundaries, not a legal erasure conclusion.",
      "reliance": "DOCUMENTED_CAPABILITY_ONLY"
    }
  ],
  "not_demonstrated_claims": [
    "Verified buyer configuration or effective access rights",
    "Independent execution, completeness or security testing",
    "Vendor certification, legal compliance or guaranteed suitability"
  ],
  "public_summary": "Changed or deleted table data remains within the configured time-travel window, followed by a separate fail-safe period. A deleted table uses the window in force at deletion; increasing the setting later does not simply extend that earlier deletion's recovery window. These are retention boundaries, not a legal erasure conclusion.",
  "related_record_ids": [],
  "source_review": {
    "source_type": "official_external_documentation",
    "source_title": "BigQuery time travel and fail-safe",
    "source_url": "https://docs.cloud.google.com/bigquery/docs/time-travel",
    "checked_on": "2026-10-16",
    "candidate_record_id": "VXI-EXT-PROCUREMENT-BIGQUERY-HISTORY-01-v1",
    "candidate_record_sha256": "20e24a079fc0c55f875849b5b6a3d89f2e269bda38fcfc5388d20eb4fafbcbfe",
    "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": "Changed or deleted table data remains within the configured time-travel window, followed by a separate fail-safe period. A deleted table uses the window in force at deletion; increasing the setting later does not simply extend that earlier deletion's recovery window. These are retention boundaries, not a legal erasure conclusion.",
    "required_buyer_context": "Dataset and table identity, deletion timestamp, configured window and separate copies. Effective configuration and dated operational evidence have not been 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": "2026-10-16",
    "claim_to_check": "Delete removes all history immediately or later settings automatically extend recovery.",
    "documented_statement": {
      "status": "documented",
      "statement": "Changed or deleted table data remains within the configured time-travel window, followed by a separate fail-safe period. A deleted table uses the window in force at deletion; increasing the setting later does not simply extend that earlier deletion's recovery window. These are retention boundaries, not a legal erasure conclusion.",
      "source_ids": [
        "bq-history"
      ]
    },
    "buyer_evidence_required": [
      "Dataset time-travel setting at deletion.",
      "Deletion time and required recovery point.",
      "Fail-safe and separately retained-copy scope."
    ],
    "review_condition": {
      "status": "varexis_review_policy",
      "statement": "Distinguish ordinary query visibility, recoverability and final retention before asserting removal."
    },
    "unknowns": "The buyer configuration, contract, effective entitlement and operational evidence have not been inspected. Missing evidence does not establish absence or failure of the feature.",
    "evidence_sources": [
      {
        "source_id": "bq-history",
        "url": "https://docs.cloud.google.com/bigquery/docs/time-travel",
        "final_url": "https://docs.cloud.google.com/bigquery/docs/time-travel",
        "title": "BigQuery time travel and fail-safe",
        "checked_on": "2026-10-16",
        "sha256": "a7e417f987975be8389b405dd6227d5860d559ae020b7ed15ee5e675000cd084",
        "bytes": 313279
      }
    ],
    "observed_deployment": false,
    "commercial_reliance_boundary": "Procurement evidence support only; no supplier clearance, legal conclusion, configuration audit or verification of the buyer's claim is supplied.",
    "paid_value": {
      "decision_context": "Save the dated retention evidence used to assess deletion and recovery commitments.",
      "free": "Complete review, practical questions, sources 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": "Dataset and table identity, deletion timestamp, configured window and separate copies."
    }
  },
  "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#bigquery-deletion-recovery-window",
  "machine_readable_record": "/varexis-index/records/bigquery-deletion-recovery-window.json"
}