{
  "seed": 42,
  "baseline": {
    "hit_at_10": 0.059091,
    "ndcg_at_10": 0.02249
  },
  "method": {
    "hit_at_10": 0.045455,
    "ndcg_at_10": 0.016181
  },
  "relative": {
    "hit_at_10_percent": -23.076923,
    "ndcg_at_10_percent": -28.051954
  },
  "alignment_mse": [
    0.023749,
    0.021152
  ],
  "contrastive_loss": [
    7.189989,
    5.892097
  ],
  "schema_version": 2,
  "manifest_ref": "reproduction:harness-lm",
  "evaluation_protocol": {
    "tier": "l2_public_dataset",
    "seeds": [
      42
    ],
    "formal_comparison": false,
    "claim_policy": "single/few-seed smoke result; do not claim a stable improvement"
  },
  "provenance": {
    "artifact_path": "docs/reproductions/2605.23572-harness-lm/metrics/movielens-100k-seed42.json",
    "historical_migration": "historical-metrics-v2-2026-08-09",
    "original_code_commit": "not recorded",
    "dataset_fingerprint": "not recorded in historical artifact"
  }
}