{
  "_what_this_is": "SYNTHETIC interface fixture. Hand-authored example rows used ONLY to demonstrate the shape of PPI's historical-evaluation UI before real tracked markets have resolved.",
  "_what_this_is_not": "These are NOT PPI forecasts, NOT resolved markets, NOT past performance, and NOT a track record. No real PPI dataset, database, API response, or calculation pipeline contains or reads this file.",
  "synthetic": true,
  "not_ppi_results": true,
  "source": "hand-authored for the rajgandhi.me PPI page",
  "real_evaluation_data": "https://partisan-premium-index.pages.dev/data/track-record.json",
  "real_resolved_predictions_as_of_2026_09": 0,
  "columns": {
    "market": "example label only",
    "model": "illustrative model probability (0-1)",
    "market_prob": "illustrative contemporaneous prediction-market probability (0-1)",
    "outcome": "1 = the event happened, 0 = it did not",
    "model_abs_error_pp": "|model - outcome|, percentage points",
    "market_abs_error_pp": "|market_prob - outcome|, percentage points",
    "model_brier": "(model - outcome)^2",
    "market_brier": "(market_prob - outcome)^2"
  },
  "rows": [
    { "market": "Example race A", "model": 0.62, "market_prob": 0.55, "outcome": 1, "model_abs_error_pp": 38, "market_abs_error_pp": 45, "model_brier": 0.1444, "market_brier": 0.2025 },
    { "market": "Example race B", "model": 0.31, "market_prob": 0.44, "outcome": 0, "model_abs_error_pp": 31, "market_abs_error_pp": 44, "model_brier": 0.0961, "market_brier": 0.1936 },
    { "market": "Example race C", "model": 0.78, "market_prob": 0.71, "outcome": 1, "model_abs_error_pp": 22, "market_abs_error_pp": 29, "model_brier": 0.0484, "market_brier": 0.0841 },
    { "market": "Example race D", "model": 0.40, "market_prob": 0.58, "outcome": 1, "model_abs_error_pp": 60, "market_abs_error_pp": 42, "model_brier": 0.3600, "market_brier": 0.1764 }
  ]
}