{
  "model_name": "SIH26183 Final Global Cross-Chain Risk Model",
  "model_type": "LightGBM",
  "features": [
    "tx_count",
    "unique_counterparties",
    "in_tx_count",
    "out_tx_count",
    "in_degree",
    "out_degree",
    "total_degree",
    "degree_ratio",
    "is_source",
    "is_sink",
    "mean_successor_out_degree",
    "mean_predecessor_in_degree",
    "pagerank",
    "active_span",
    "mean_event_time",
    "event_time_std",
    "recent_activity_age",
    "log_in_volume",
    "log_out_volume",
    "log_total_volume",
    "in_out_value_ratio",
    "inflow_concentration",
    "outflow_concentration"
  ],
  "threshold": 0.45545454545454545,
  "supported_chains": [
    "bitcoin",
    "ethereum",
    "solana"
  ],
  "max_trace_hops": 5,
  "input_contract": {
    "blockchain": "bitcoin | ethereum | solana",
    "suspect_address": "string",
    "transaction_hash": "optional string",
    "max_hops": 5
  },
  "prediction_role": "supplementary investigator triage signal",
  "not_a_criminality_verdict": true,
  "solana_dataset_note": "SolRPDS is pool-level rug-pull/inactivity data, not a wallet-level transaction graph.",
  "global_metrics": {
    "threshold": 0.45545454545454545,
    "validation_f1": 0.8775930759719742,
    "test_f1": 0.8732754682503426,
    "test_precision": 0.8244630380401967,
    "test_recall": 0.92823152374478,
    "test_auc": 0.9448279524043841,
    "test_pr_auc": 0.9417589522533537
  },
  "per_chain_metrics": [
    {
      "chain": "bitcoin",
      "samples": 18743,
      "positive_rate": 0.49906631809208774,
      "F1": 0.870017504376094,
      "precision": 0.817404379287661,
      "recall": 0.9298695745135771,
      "ROC_AUC": 0.9421843723564529,
      "PR_AUC": 0.9387301005502092
    },
    {
      "chain": "ethereum",
      "samples": 637,
      "positive_rate": 0.5039246467817896,
      "F1": 0.9747634069400631,
      "precision": 0.987220447284345,
      "recall": 0.9626168224299065,
      "ROC_AUC": 0.9985803856618952,
      "PR_AUC": 0.9986431333715999
    },
    {
      "chain": "solana",
      "samples": 1215,
      "positive_rate": 0.5119341563786008,
      "F1": 0.8739095955590801,
      "precision": 0.8622848200312989,
      "recall": 0.8858520900321544,
      "ROC_AUC": 0.9381937177033234,
      "PR_AUC": 0.9310375351273327
    }
  ],
  "leave_one_chain_out": [
    {
      "held_out_chain": "bitcoin",
      "samples": 93860,
      "F1": 0.0,
      "precision": 0.0,
      "recall": 0.0,
      "ROC_AUC": 0.44734140333229977,
      "PR_AUC": 0.4513338314496806
    },
    {
      "held_out_chain": "ethereum",
      "samples": 3320,
      "F1": 0.18259023354564755,
      "precision": 0.30935251798561153,
      "recall": 0.12951807228915663,
      "ROC_AUC": 0.41288739294527504,
      "PR_AUC": 0.42665175081189444
    },
    {
      "held_out_chain": "solana",
      "samples": 5792,
      "F1": 0.004747371990505256,
      "precision": 0.1320754716981132,
      "recall": 0.0024171270718232043,
      "ROC_AUC": 0.6625257427848662,
      "PR_AUC": 0.5681566523577251
    }
  ]
}