{
  "exact_token_overlap": 0,
  "ngram_containment_jaccard": 0.0,
  "semantic_similarity_max": 0.0,
  "mechanism_leakage_detected": false,
  "environment_leakage_detected": false,
  "implementation_leakage_detected": false,
  "temporal_leakage_detected": false,
  "benchmark_leakage_detected": false,
  "developer_knowledge_leakage": false,
  "generated_data_leakage": false,
  "all_clean": true,
  "verdict": "ZERO_CONTAMINATION_VERIFIED"
}