{
  "version": "3.0.0",
  "built_at": "2026-11-12",
  "pipeline": "v3 (second audit-fix build)",
  "near_duplicate_pairs": [],
  "splits": {
    "qa_sft": {
      "train": 40,
      "validation": 8,
      "test": 8
    },
    "qa_rl": {
      "train": 92,
      "validation": 18,
      "test": 23
    },
    "sft_rl_overlap": 0
  },
  "decontamination": {
    "status": "inherited_from_v2_not_rerun",
    "stats": {
      "method": "containment decontamination (substring >= 20 chars; token containment >= 0.75; char-shingle(5) Jaccard >= 0.5)",
      "benchmarks": [
        "2wikimultihopqa",
        "hotpotqa",
        "musique",
        "triviaqa"
      ],
      "benchmark_questions": 7900,
      "our_questions": 189,
      "overlaps": 0,
      "near_misses_ge_0.6": 5
    },
    "v3_changed_questions": [
      "hd-en-mh-511",
      "hd-en-mh-518"
    ]
  },
  "qa_sft_distribution": {
    "by_language": {
      "en": 20,
      "hi": 10,
      "ja": 10,
      "ru": 7,
      "zh": 9
    },
    "by_task_type": {
      "conflicting_sources": 6,
      "date_sensitive": 6,
      "false_premise": 8,
      "multi_hop": 25,
      "perspective_framing": 5,
      "unanswerable": 6
    },
    "by_difficulty": {
      "tactical": 31,
      "snapshot": 18,
      "deep": 7
    },
    "by_estrangement": {
      "2": 36,
      "1": 16,
      "3": 4
    }
  },
  "qa_rl_distribution": {
    "by_language": {
      "en": 54,
      "zh": 31,
      "ru": 22,
      "ja": 13,
      "hi": 13
    },
    "by_task_type": {
      "multi_hop": 84,
      "date_sensitive": 12,
      "conflicting_sources": 12,
      "false_premise": 9,
      "unanswerable": 7,
      "perspective_framing": 9
    }
  },
  "trajectories": {
    "total": 28,
    "by_outcome": {
      "success": 14,
      "fail": 14
    },
    "by_failure_mode": {
      "redundant_query_cycling": 3,
      "wrong_terminal_entity": 2,
      "stale_knowledge_answer": 2,
      "false_conflict_resolution": 1,
      "hallucinated_answer_on_false_premise": 3,
      "premature_answer": 2,
      "ungrounded_abstention": 1
    },
    "by_language": {
      "en": 14,
      "zh": 4,
      "ru": 2,
      "ja": 4,
      "hi": 4
    },
    "mean_tool_calls": 2.64,
    "mean_tool_result_chars": 480.3
  },
  "dpo_pairs": 14,
  "dpo_matched_pairs": 17,
  "dpo_matched_by_split": {
    "train": 12,
    "validation": 4,
    "test": 1
  },
  "dpo_length_confounded_pairs": 14,
  "dpo_char_ratio_median": 5.07,
  "failure_trajectories_with_ungrounded_queries": 6,
  "trajectory_causality": {
    "success_trajectories_checked": 70,
    "violations": 0,
    "rule": "queries/URLs use only question text or earlier tool-result strings"
  },
  "total_unique_questions": 189,
  "total_rows": 248,
  "coverage_guarantees": [
    "multi_hop present in qa_sft test and qa_rl test",
    "unanswerable present in qa_sft train and qa_rl train",
    "false_premise present in train and test of both pools",
    "estrangement-3 and deep multi-hop present in train and test",
    "qa_sft and qa_rl question sets fully disjoint"
  ]
}