{
  "schemaVersion": 1,
  "artifactVersion": "OPENFATE_BAZI_METHODOLOGY_EVIDENCE_V3",
  "publishedAt": "2026-09-20",
  "reviewedAt": "2026-09-20",
  "methodology": "https://openfate.ai/en/bazi/calculation-methodology",
  "disclosureModel": "PUBLIC_PROOF_PRIVATE_IMPLEMENTATION",
  "calendarSource": {
    "repository": "https://github.com/openfate-ai/bazi-engine",
    "revision": "e608e5445b413592fc21ad2b492a7b4de2ffadc6",
    "testsPassed": 178,
    "testsFailed": 0,
    "command": "npm ci && npm test",
    "scope": "Clean public version 2 source checkout; not the main application's entire engine.",
    "hiddenStemCorrection": "Included in published npm package 2.0.0.",
    "historicalDstReceiptCorrection": "IANA-resolved historical DST is recorded in metadata.dstOffset for timed inputs, including when True Solar Time is disabled.",
    "interactionTopology": "Every distinct pillar occurrence is retained with a stable ID; raw relationships remain separate from scoring and transformation claims.",
    "daYunTiming": "DAYUN_SECOND_V2 is available as an explicit opt-in contract with second-resolved onset receipts; the legacy timing contract remains the package default."
  },
  "publishedPackage": {
    "package": "@openfate/bazi-engine",
    "version": "2.0.0",
    "tag": "v2.0.0",
    "sourceRevision": "e608e5445b413592fc21ad2b492a7b4de2ffadc6",
    "publishedAt": "2026-09-20T20:45:19.231Z",
    "registry": "https://www.npmjs.com/package/@openfate/bazi-engine/v/2.0.0"
  },
  "appCalendarDependency": {
    "package": "@openfate/bazi-engine",
    "version": "2.0.0",
    "patchApplied": false,
    "patchSha256": null,
    "stemRelationsChecked": 100,
    "hiddenStemAssertions": 910,
    "scope": "Installed published npm 2.0.0 without an app patch. Hidden-stem, historical-DST, raw-occurrence, and opt-in second-resolved Da Yun contracts come from the published package."
  },
  "publicCalendarExamples": {
    "url": "https://openfate.ai/bazi-validation-v1.json",
    "sha256": "bc4d5afcc79dc0b2d5405199cddfae8bd4a203d73f4adc4e5f5a1b067485460d",
    "cases": 8,
    "provenanceCorrection": "The frozen v1 file identifies historical package 1.1.1 but omits its then-current app patch. Its full expected outputs were verified against that historical installation and replayed against the current unpatched 2.0.0 installation. This supplemental manifest does not rewrite the historical file.",
    "cleanSourceReplay": {
      "fullMatches": 8,
      "knownReceiptDifferences": 0,
      "allPublishedFieldsMatch": true,
      "status": "FULL_MATCH"
    },
    "scope": "Synthetic calendar examples using the package's legacy-default timing contract; not expert-adjudicated predictions or app DAYUN_SECOND_V2 verification."
  },
  "replayScript": {
    "url": "https://openfate.ai/bazi-public-replay-v1.mjs.txt",
    "sha256": "7a2fe071f72542bd1e19a72a4c82742eb86bc79d3e3562c6edbbf1ae0b81e44b"
  },
  "appTimeBenchmark": {
    "visibility": "AGGREGATE_PUBLIC_FULL_FIXTURES_PRIVATE",
    "ianaRelease": "2026d",
    "previousReceiptRelease": "2026c",
    "timezoneDatabase": "IANA_2026D_TRANSITIONS_V1",
    "resolverVersion": "OPENFATE_PINNED_TRANSITIONS_V1",
    "runtimeDataSha256": "f8daafdc537edeb85efd72cba8c097c4bef07f1209fd08c2aed05c8de2b958d6",
    "referenceSha256": "936848ea11110e540b7dacfcf4e6e2472d133f208afe2898b0d8e2165409b3b8",
    "ianaArchive": "https://data.iana.org/time-zones/releases/tzdata2026d.tar.gz",
    "ianaArchiveSha256": "0cb2aa8e333c3dc049badc42a0c61f21987b8cd44e107fa900bad764aacc7767",
    "canonicalZonesInRuntime": 344,
    "aliasesInRuntime": 253,
    "benchmarkZones": 150,
    "fixedUtcSamples": 30600,
    "transitionInstantChecks": 22953,
    "nonexistentCivilTimes": 3869,
    "repeatedCivilTimes": 3782,
    "scope": "Total UTC-offset parity with independently generated IANA/TZif references and gap/fold resolution; not independent certification, complete historical civil-practice coverage, or a count of countries."
  },
  "appPolicies": {
    "calculation": "GLOBAL_JIE_PINNED_TIME_V1",
    "luckPillarOnset": "DAYUN_SECOND_V2",
    "patternDoctrine": "CLASSICAL_TAXONOMY_REVEAL_V1",
    "monthCommandFrames": 12,
    "formationPaths": 19,
    "oldReports": "Retain stored version receipts and original outputs."
  },
  "shenSha": {
    "summaryUrl": "https://openfate.ai/bazi-shen-sha-transparency-v1.json",
    "summarySha256": "1451b0c11f2b35e7085aff0429d70c4fe0139aaacf8d4c2c16d9c456fc56fcde",
    "registeredLabels": 44,
    "withheldRules": 1,
    "fullyComparableCompetitorCharts": 0
  },
  "claimBoundary": {
    "independentAudit": false,
    "wholeEngineAccuracyEstablished": false,
    "comparativeSuperiorityEstablished": false,
    "predictiveValidityTested": false,
    "searchRankingGuaranteed": false
  }
}