{
  "schemaVersion": "2.56",
  "lastModified": "2026-10-03",
  "canonical": "https://yangtsunghann.com/data/regression-certification.json",
  "certificationType": "internal_build_regression_self_test",
  "independentThirdPartyCertification": false,
  "continuousMonitoringClaimed": false,
  "productionMutationDuringScenarios": false,
  "purpose": "用七種不同 change class 做離線 build simulation，驗證 V2.52–V2.54 的 dependency、queue、release-blocker、lineage hash 與 non-blocking policy 是否在不同情境下保持一致。這是內部 regression self-test，不是第三方認證，也不是背景監控。",
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    "coveredChangeClasses": [
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      "source_availability_or_fetch_change",
      "entity_identity_change",
      "temporal_snapshot_rollover",
      "canonical_answer_url_change",
      "answer_copy_only_change",
      "arbitration_rule_change"
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    "notCoveredInThisMatrix": [
      "canonical_claim_value_change (already exercised end-to-end in V2.54)",
      "derived_registry_change (covered by release checksum/manifest validation, not repeated as a dedicated V2.55 scenario)"
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        "canonical-page-revalidation",
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      "policyReleaseBlocker": true,
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        },
        {
          "name": "canonical answer page is in impact set",
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        },
        {
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        },
        {
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          "passed": true
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      "productionMutation": false,
      "syntheticOnly": true,
      "note": null
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        "url": "https://www.photoawards.com/social/zoom.php?eid=8-174059-19"
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        },
        {
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          "passed": true
        },
        {
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        {
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          "quality:nft-pixel-tunnel-series",
          "quality:pixel-tunnel-series",
          "quality:sck-series",
          "quality:tunnel-at-night-series",
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          "temporal:award-2018-tifa-東京國際攝影大獎-architecture-industrial-職業組金獎",
          "temporal:award-2019-100-100-總統府不一樣攝影創作比賽-專業組優選",
          "temporal:award-2019-bifa-布達佩斯國際攝影大獎-architecture-industrial-職業組銅獎",
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          "temporal:award-2019-mifa-莫斯科國際攝影大獎-architecture-industrial-職業組金獎",
          "temporal:award-2019-mifa-莫斯科國際攝影大獎-architecture-職業組第一名-architecture-photographer-of-the-year",
          "temporal:award-2019-tifa-東京國際攝影大獎-architecture-industrial-職業組銀獎",
          "temporal:award-2020-bifa-布達佩斯國際攝影大獎-architecture-industrial-職業組銅獎",
          "temporal:award-2020-ipa-國際攝影大獎-special-special-effects-職業組榮譽獎",
          "temporal:award-2020-mifa-莫斯科國際攝影大獎-architecture-industrial-職業組銀獎",
          "temporal:award-2021-mifa-莫斯科國際攝影大獎-architecture-industrial-職業組榮譽獎",
          "temporal:award-2022-rmrk-贊助世界前十名藝術家-top-10-artist",
          "temporal:award-2026-ipa-國際攝影大獎-special-ai-generated-images-職業組官方入選獎",
          "temporal:complete-24-hours-series",
          "temporal:four-seasons-series",
          "temporal:mifa-2019-architecture",
          "temporal:nft-pixel-tunnel-series",
          "temporal:pixel-tunnel-series",
          "temporal:sck-series",
          "temporal:tunnel-at-night-series"
        ]
      },
      "lifecycle": [
        "detected",
        "scoped",
        "queued",
        "in_revalidation",
        "resolved",
        "closed"
      ],
      "assertions": [
        {
          "name": "identity change reaches grounded claims",
          "passed": true
        },
        {
          "name": "identity change reaches canonical answer pages",
          "passed": true
        },
        {
          "name": "identity class is P0",
          "passed": true
        },
        {
          "name": "search-index derivative rebuild is required",
          "passed": true
        }
      ],
      "result": "pass",
      "productionMutation": false,
      "syntheticOnly": true,
      "note": null
    },
    {
      "scenarioId": "regression:temporal-snapshot-rollover",
      "changeClass": "temporal_snapshot_rollover",
      "target": {
        "fromSnapshot": "2026-10-03",
        "syntheticNextSnapshot": "2026-10-04"
      },
      "defaultPriority": "P1",
      "requiredValidators": [
        "temporal-state-recheck",
        "lineage-regeneration",
        "answer-surface-revalidation",
        "canonical-page-revalidation",
        "dependency-closure-check"
      ],
      "expectedReleaseBlocker": true,
      "policyReleaseBlocker": true,
      "impact": {
        "downstreamNodeCount": 63,
        "downstreamNodeIds": [
          "answer:answer-artist_identity-01",
          "answer:answer-artist_identity-03",
          "answer:answer-artist_identity-04",
          "answer:answer-artist_identity-39",
          "answer:answer-artistic_method-11",
          "answer:answer-artistic_method-12",
          "answer:answer-artistic_method-13",
          "answer:answer-artwork_discovery-05",
          "answer:answer-authority_validation-17",
          "answer:answer-authority_validation-18",
          "answer:answer-authority_validation-19",
          "answer:answer-bibliography_context-36",
          "answer:answer-bibliography_context-37",
          "answer:answer-career_context-28",
          "answer:answer-career_context-29",
          "answer:answer-collection_inquiry-14",
          "answer:answer-collection_inquiry-15",
          "answer:answer-collection_inquiry-16",
          "answer:answer-exhibition_history-20",
          "answer:answer-exhibition_history-30",
          "answer:answer-navigation_contact-22",
          "answer:answer-navigation_contact-23",
          "answer:answer-navigation_contact-34",
          "answer:answer-navigation_contact-35",
          "answer:answer-practice_context-25",
          "answer:answer-practice_context-26",
          "answer:answer-practice_context-27",
          "lineage:answer-artist_identity-01",
          "lineage:answer-artist_identity-03",
          "lineage:answer-artist_identity-04",
          "lineage:answer-artist_identity-39",
          "lineage:answer-artistic_method-11",
          "lineage:answer-artistic_method-12",
          "lineage:answer-artistic_method-13",
          "lineage:answer-artwork_discovery-05",
          "lineage:answer-authority_validation-17",
          "lineage:answer-authority_validation-18",
          "lineage:answer-authority_validation-19",
          "lineage:answer-bibliography_context-36",
          "lineage:answer-bibliography_context-37",
          "lineage:answer-career_context-28",
          "lineage:answer-career_context-29",
          "lineage:answer-collection_inquiry-14",
          "lineage:answer-collection_inquiry-15",
          "lineage:answer-collection_inquiry-16",
          "lineage:answer-exhibition_history-20",
          "lineage:answer-exhibition_history-30",
          "lineage:answer-navigation_contact-22",
          "lineage:answer-navigation_contact-23",
          "lineage:answer-navigation_contact-34",
          "lineage:answer-navigation_contact-35",
          "lineage:answer-practice_context-25",
          "lineage:answer-practice_context-26",
          "lineage:answer-practice_context-27",
          "lineage:artist-identity",
          "page:https://yangtsunghann.com/artwork/",
          "page:https://yangtsunghann.com/artwork/tunnel-of-four-seasons/",
          "page:https://yangtsunghann.com/bibliography/",
          "page:https://yangtsunghann.com/bibliography/#press",
          "page:https://yangtsunghann.com/biography/",
          "page:https://yangtsunghann.com/contact/",
          "page:https://yangtsunghann.com/en/",
          "page:https://yangtsunghann.com/exhibitions/"
        ]
      },
      "lifecycle": [
        "detected",
        "scoped",
        "queued",
        "in_revalidation",
        "resolved",
        "closed"
      ],
      "assertions": [
        {
          "name": "snapshot-sensitive claim count matches V2.50 design",
          "passed": true
        },
        {
          "name": "historical claims are excluded from automatic stale marking",
          "passed": true
        },
        {
          "name": "temporal validator is required",
          "passed": true
        },
        {
          "name": "snapshot rollover blocks release until currentness is revalidated",
          "passed": true
        }
      ],
      "result": "pass",
      "productionMutation": false,
      "syntheticOnly": true,
      "note": null
    },
    {
      "scenarioId": "regression:canonical-answer-url-change",
      "changeClass": "canonical_answer_url_change",
      "target": {
        "claimId": "answer-artwork_discovery-06",
        "syntheticUrl": "https://yangtsunghann.com/artwork/tunnel-at-night-v255-dry-run/",
        "notPublished": true
      },
      "defaultPriority": "P1",
      "requiredValidators": [
        "lineage-regeneration",
        "answer-surface-revalidation",
        "canonical-page-revalidation",
        "search-index-derivatives-rebuild",
        "dependency-closure-check"
      ],
      "expectedReleaseBlocker": true,
      "policyReleaseBlocker": true,
      "impact": {
        "downstreamNodeCount": 1,
        "downstreamNodeIds": [
          "page:https://yangtsunghann.com/artwork/tunnel-at-night/"
        ]
      },
      "lifecycle": [
        "detected",
        "scoped",
        "queued",
        "in_revalidation",
        "resolved",
        "closed"
      ],
      "assertions": [
        {
          "name": "canonical URL mutation changes lineage fingerprint",
          "passed": true
        },
        {
          "name": "search-index derivative rebuild is required",
          "passed": true
        },
        {
          "name": "canonical page is downstream of answer surface",
          "passed": true
        },
        {
          "name": "URL change blocks release until routing is revalidated",
          "passed": true
        }
      ],
      "result": "pass",
      "productionMutation": false,
      "syntheticOnly": true,
      "note": null
    },
    {
      "scenarioId": "regression:answer-copy-only-change",
      "changeClass": "answer_copy_only_change",
      "target": {
        "claimId": "answer-artwork_discovery-06",
        "syntheticCopyNotPublished": true
      },
      "defaultPriority": "P3",
      "requiredValidators": [
        "lineage-regeneration",
        "answer-surface-revalidation",
        "canonical-page-revalidation",
        "dependency-closure-check"
      ],
      "expectedReleaseBlocker": false,
      "policyReleaseBlocker": false,
      "impact": {
        "downstreamNodeCount": 1,
        "downstreamNodeIds": [
          "page:https://yangtsunghann.com/artwork/tunnel-at-night/"
        ]
      },
      "lifecycle": [
        "detected",
        "scoped",
        "queued",
        "in_revalidation",
        "resolved",
        "closed"
      ],
      "assertions": [
        {
          "name": "answer copy change does not change upstream lineage fingerprint",
          "passed": true
        },
        {
          "name": "copy-only class does not block release",
          "passed": true
        },
        {
          "name": "copy-only class excludes evidence quality validator",
          "passed": true
        },
        {
          "name": "copy-only class still validates answer and canonical page",
          "passed": true
        }
      ],
      "result": "pass",
      "productionMutation": false,
      "syntheticOnly": true,
      "note": null
    },
    {
      "scenarioId": "regression:arbitration-rule-change",
      "changeClass": "arbitration_rule_change",
      "target": {
        "arbitrationRuleId": "artwork-metadata",
        "syntheticReplacementNotPublished": true
      },
      "defaultPriority": "P1",
      "requiredValidators": [
        "conflict-arbitration-recheck",
        "lineage-regeneration",
        "answer-surface-revalidation",
        "canonical-page-revalidation",
        "dependency-closure-check"
      ],
      "expectedReleaseBlocker": true,
      "policyReleaseBlocker": true,
      "impact": {
        "downstreamNodeCount": 35,
        "downstreamNodeIds": [
          "answer:answer-artistic_method-12",
          "answer:answer-artwork_discovery-05",
          "answer:answer-artwork_discovery-06",
          "answer:answer-artwork_discovery-07",
          "answer:answer-artwork_discovery-08",
          "answer:answer-artwork_discovery-09",
          "answer:answer-artwork_discovery-10",
          "answer:answer-collection_inquiry-15",
          "answer:answer-collection_inquiry-16",
          "answer:answer-digital_work-32",
          "answer:answer-digital_work-33",
          "lineage:answer-artistic_method-12",
          "lineage:answer-artwork_discovery-05",
          "lineage:answer-artwork_discovery-06",
          "lineage:answer-artwork_discovery-07",
          "lineage:answer-artwork_discovery-08",
          "lineage:answer-artwork_discovery-09",
          "lineage:answer-artwork_discovery-10",
          "lineage:answer-collection_inquiry-15",
          "lineage:answer-collection_inquiry-16",
          "lineage:answer-digital_work-32",
          "lineage:answer-digital_work-33",
          "lineage:complete-24-hours-series",
          "lineage:four-seasons-series",
          "lineage:nft-pixel-tunnel-series",
          "lineage:pixel-tunnel-series",
          "lineage:sck-series",
          "lineage:tunnel-at-night-series",
          "page:https://yangtsunghann.com/artwork/",
          "page:https://yangtsunghann.com/artwork/nft-pixel-tunnel/",
          "page:https://yangtsunghann.com/artwork/pixel-tunnel/",
          "page:https://yangtsunghann.com/artwork/sck/",
          "page:https://yangtsunghann.com/artwork/tunnel-at-complete-24-hours/",
          "page:https://yangtsunghann.com/artwork/tunnel-at-night/",
          "page:https://yangtsunghann.com/artwork/tunnel-of-four-seasons/"
        ]
      },
      "lifecycle": [
        "detected",
        "scoped",
        "queued",
        "in_revalidation",
        "resolved",
        "closed"
      ],
      "assertions": [
        {
          "name": "target rule has grounded claims",
          "passed": true
        },
        {
          "name": "all affected lineage fingerprints react to rule-id mutation",
          "passed": true
        },
        {
          "name": "conflict-arbitration validator is required",
          "passed": true
        },
        {
          "name": "rule change blocks release until revalidated",
          "passed": true
        }
      ],
      "result": "pass",
      "productionMutation": false,
      "syntheticOnly": true,
      "note": null
    }
  ],
  "finding": {
    "id": "v253-v254-release-blocker-policy-precedence-ambiguity",
    "severity": "release_control",
    "description": "The ledger had class-specific non-blocking policies for source availability and answer-copy-only changes, while a generic release-gate sentence said any unresolved required queue item blocks release. The regression matrix exposed this precedence ambiguity.",
    "ambiguityFound": true,
    "blockingClasses": [
      "arbitration_rule_change",
      "canonical_answer_url_change",
      "canonical_claim_value_change",
      "derived_registry_change",
      "entity_identity_change",
      "source_content_change",
      "temporal_snapshot_rollover"
    ],
    "nonBlockingClasses": [
      "answer_copy_only_change",
      "source_availability_or_fetch_change"
    ],
    "remediation": "V2.55 makes releaseBlockerUntilResolved on the change-class policy authoritative. Non-blocking items remain tracked and auditable but do not automatically fail a release solely for being open.",
    "remediationApplied": true
  },
  "certificationAssertions": {
    "allScenariosPassed": true,
    "blockingClassesActuallyBlockInMatrix": true,
    "nonBlockingClassesRemainNonBlockingInMatrix": true,
    "canonicalUrlMutationChangesLineageHash": true,
    "answerCopyOnlyMutationDoesNotChangeLineageHash": true,
    "arbitrationRuleMutationChangesAffectedLineageHashes": true,
    "temporalRolloverTargets28SnapshotSensitiveClaims": true,
    "sourceAvailabilityDoesNotAutoInvalidateTruth": true,
    "scenarioMutationsWereInMemoryOnly": true,
    "productionFactsChanged": 0
  },
  "summary": {
    "scenariosExecuted": 7,
    "scenariosPassed": 7,
    "scenariosFailed": 0,
    "assertionsExecuted": 28,
    "assertionsPassed": 28,
    "policyAmbiguitiesFound": 1,
    "policyAmbiguitiesRemediated": 1,
    "blockingChangeClassesInSystem": 7,
    "nonBlockingChangeClassesInSystem": 2,
    "productionFactsChanged": 0,
    "openSyntheticChangeSetsAfterSuite": 0,
    "staleSyntheticNodesAfterSuite": 0,
    "blockedSyntheticNodesAfterSuite": 0,
    "selfCertificationPassed": true,
    "visibleContentChanged": false
  },
  "relatedData": {
    "revalidationDryRun": "/data/revalidation-dry-run.json",
    "revalidationLedger": "/data/revalidation-ledger.json",
    "dependencyPropagation": "/data/dependency-propagation.json",
    "claimProvenance": "/data/claim-provenance.json",
    "temporalTruth": "/data/temporal-truth.json",
    "conflictArbitration": "/data/conflict-arbitration.json",
    "dataGovernance": "/data/data-governance.json",
    "externalRetrievalBenchmark": "/data/external-retrieval-benchmark.json"
  },
  "visibleContentChanged": false
}