{
  "id": "nrr-monotonicity-b14-v1",
  "frozenAt": "2026-10-19T13:45:57.462Z",
  "files": {
    "research/frozen/nrr-v057-b04-generator.mjs": "fc2a2a3bb52fe527d08342c1e619f827714dbbd1d2c83ed9ffb2bc2bb86e887b",
    "scripts/build-ranking-backtest.mjs": "6de83c122d7b85ec7d4e3f777d00797204a85fccb261b24a32515fdfb2b4edb4",
    "scripts/weekly-ranking-checkpoints.mjs": "305d1d1536a7bc058f228c524b66d1a2e4a41e580a2ff93bbe89908625d32cfd",
    "scripts/audit-nrr-monotonicity.mjs": "0fde13ed79c8e55b5b3187f7c88c434c326a8bde70e6640d5b83d27e83a2f1b0"
  },
  "families": [
    {
      "n": 4,
      "kind": "complete",
      "context": "neutral"
    },
    {
      "n": 5,
      "kind": "complete",
      "context": "neutral"
    },
    {
      "n": 6,
      "kind": "complete",
      "context": "neutral"
    },
    {
      "n": 6,
      "kind": "ring-plus",
      "context": "neutral"
    },
    {
      "n": 4,
      "kind": "complete",
      "context": "venue-and-margin"
    }
  ],
  "tolerance": 0.00001,
  "definitions": {
    "index": "Loss-to-win reversal must not lower changed team published index.",
    "rank": "Loss-to-win reversal must not worsen number of opponents strictly above the changed team by more than tolerance.",
    "display": "Separately inspect total order: reconstructed index, team strength, team name; exact-tie display changes do not establish strict rank failure."
  },
  "environment": "Clear inherited NRR_*; NRR_LIBRARY_MODE=1; each hashed generator default weights.",
  "fixture": "Enumerate every orientation. Neutral context: 30–20, neutral sites, zero adjusted_net_epa per team, no poll or plays or titles. Venue context: listed home team, 31–20/24–21/42–10 margins repeated; scores swap coherently on reversal. Same dates and per-team efficiency held fixed. Full opponent and performance refit; no historical prevalence claim.",
  "limits": [
    "Synthetic score reversals with zero team efficiency are controlled interventions, not observed football seasons.",
    "No title, external poll or play-by-play inputs; no theorem, causal gaming behavior or general incentive-compatibility verdict.",
    "Current generator and original B04 generator evaluated separately. No weight selection."
  ]
}