{
  "reviewed_on": "2026-09-19",
  "scope": "Selected public aggregates only. These are dated research and release observations, not live service data.",
  "curling": {
    "source": "curling_cv_challenge: retained silver_stone_reference_v6_candidate/rust_metrics.json; July 2026 audit",
    "reference": "Automated silver cross-model agreement, not human ground truth",
    "frames": 218,
    "exact_state_frames": 215,
    "disagreement_frames": 3,
    "reference_stones": 1073,
    "predicted_stones": 1076,
    "matched_stones": 1073,
    "extra_stones": 3,
    "missed_stones": 0,
    "matching_tolerance_house_radii": 0.08
  },
  "snooker": {
    "source": "snooker_cv_challenge: campaign-final-20260916/balls-test-{baseline,candidate}.json and MODEL_CARD.md",
    "observed_on": "2026-09-16",
    "scope": "95-image previously inspected pilot, unchanged delivered labels, class-aware box IoU >= 0.5; not an independent certification benchmark",
    "frames": 95,
    "baseline": {"false_positives": 14, "false_negatives": 11},
    "candidate": {"false_positives": 14, "false_negatives": 3},
    "candidate_by_colour": [
      {"colour": "Pink", "false_positives": 7, "false_negatives": 0},
      {"colour": "Red", "false_positives": 4, "false_negatives": 2},
      {"colour": "Black", "false_positives": 2, "false_negatives": 0},
      {"colour": "Brown", "false_positives": 1, "false_negatives": 1},
      {"colour": "White", "false_positives": 0, "false_negatives": 0},
      {"colour": "Yellow", "false_positives": 0, "false_negatives": 0},
      {"colour": "Green", "false_positives": 0, "false_negatives": 0},
      {"colour": "Blue", "false_positives": 0, "false_negatives": 0}
    ]
  },
  "copybetter": {
    "source": "Copybetter: shadow-parity-audit-20260916/summary.json",
    "observed_at": "2026-09-16T09:24:39Z",
    "scope": "Pregame paper positions opened from 2026-08-25 to observation; dependent observations across changing experiment instances",
    "accepted_positions": 511,
    "settled_positions": 508,
    "open_positions": 3,
    "experiment_instances": 12,
    "policy_configurations": 5
  },
  "reporting": {
    "source": "Copybetter: operations-shadow-dashboard-2026-09-18 release audit",
    "observed_on": "2026-09-18",
    "scope": "Recorded release measurements, not an SLA or a benchmark against an earlier implementation",
    "accounts": 12,
    "report_kb_approx": 303,
    "observer_seconds_approx": [18, 21],
    "observer_tests_passed": 20,
    "observer_external_fixture_ignored": 1,
    "dashboard_profile_tests_passed": 82
  }
}