Blame for VALIDATION.json

{
  "schema": "FACTCASCADE_PUBLIC_ROUTER_VALIDATION_V1",
  "original_checkpoint_bytes": 48351,
  "original_checkpoint_source_durable_equal": true,
  "parameter_structure_exact": true,
  "feature_order_exact": true,
  "features": 31,
  "trees": 100,
  "synthetic_prediction_rows": 3997,
  "learned_split_boundaries_exercised": 2973,
  "prediction_exact": true,
  "rank_fusion_exact": true,
  "synthetic_routes_exact": true,
  "NaN_positive_negative_infinity_imputation_checked": true,
  "new_fits": 0,
  "verifier_inference": 0,
  "real_dataset_gold_reads": 0,
  "new_benchmark_or_runtime": 0,
  "cryptographic_hashes": 0,
  "scope": "Checkpoint serialization and synthetic CPU prediction parity only; not a fresh generalization study."
}