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{
  "transactions_columns": {
    "txn_id": "int32",
    "sender_id": "int64",
    "receiver_id": "int64",
    "amount": "float32",
    "timestamp": "float32",
    "txn_type": "int8",
    "is_fraud": "int8",
    "fraud_type": "str",
    "is_retry": "int8",
    "risk_score": "float32",
    "fail_prob": "float32",
    "failed": "int8",
    "twin_pair_id": "int64",
    "template_id": "int64",
    "twin_role": "str",
    "twin_label": "int8",
    "motif_source": "int8",
    "motif_chain_state": "float32",
    "motif_strength": "float32",
    "dynamic_fraud_state": "float32",
    "fraud_source": "str",
    "motif_hit_count": "int32",
    "trigger_event_idx": "int32",
    "label_event_idx": "int32",
    "label_delay": "int32",
    "is_fallback_label": "int8",
    "risk_noisy": "float32",
    "neighbor_score": "float32",
    "pair_freq": "float32",
    "txn_count_10": "float32",
    "amount_sum_10": "float32"
  },
  "matched_pairs_columns": {
    "pair_event_id": "int64",
    "twin_pair_id": "int64",
    "template_id": "int64",
    "matched_local_event_idx": "int64",
    "prefix_txn_count": "int64",
    "sender_id": "int64",
    "label": "int64",
    "twin_role": "str",
    "matched_sender_id": "int64",
    "total_txn_count": "int64",
    "eval_timestamp": "float64",
    "account_age": "float64",
    "active_age": "float64",
    "benchmark_mode": "str",
    "difficulty": "str",
    "seed": "int64"
  },
  "audit_summary_columns": {
    "pair_total_txn_count_diff_mean": "float64",
    "pair_total_txn_count_diff_max": "float64",
    "auc_total_txn_count": "float64",
    "auc_local_event_idx": "float64",
    "auc_prefix_txn_count": "float64",
    "auc_timestamp": "float64",
    "auc_account_age": "float64",
    "auc_active_age": "float64",
    "fraud_label_event_idx_mean": "float64",
    "fraud_label_event_idx_max": "float64",
    "benign_eval_event_idx_mean": "float64",
    "benign_eval_event_idx_max": "float64",
    "pair_event_idx_diff_mean": "float64",
    "pair_event_idx_diff_max": "float64",
    "pair_active_age_diff_mean": "float64",
    "pair_active_age_diff_max": "float64",
    "pair_timestamp_diff_mean": "float64",
    "pair_timestamp_diff_max": "float64",
    "benign_motif_hit_rate": "float64",
    "benign_motif_hit_pairs": "int64",
    "matched_control_examples": "int64",
    "matched_control_pair_events": "int64"
  },
  "files": [
    "transactions.parquet",
    "matched_pairs.parquet",
    "audit_summary.csv",
    "schema.json",
    "config.yaml"
  ]
}