{
  "schema": "coach-verification-snapshot-v1",
  "updated": "2026-10-10",
  "scope": "Frozen primary-teaching regression coverage, excluding additional blue-panel comparison scenes; not an accuracy or teaching-quality score.",
  "coverage": {
    "games": 50,
    "positions": 194,
    "demonstrations": 121,
    "frames": 1760,
    "unresolved": 72,
    "evidenceMismatch": 1
  },
  "independentReview": {
    "kind": "AI-model review, not human chess-specialist certification",
    "reviewer": "GPT-6 Pro",
    "reviewedSource": "00aec4b14ad432dcc371cca153a060fbb1b1f3bc",
    "focusedChecks": 52,
    "scope": "Historical 18 September review of the specified source and repair findings; repeated positions and boundary variations. Not acceptance of the 20 September source or a fresh overall quality grade."
  }
}