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{
  "case_id": "easy",
  "difficulty": "easy",
  "campaign": {
    "name": "Summer Electronics Sale",
    "duration_days": 14,
    "total_budget": 10000,
    "conversion_value": 10.0,
    "investigation_budget": 10,
    "industry_benchmarks": {
      "avg_ctr": 0.020,
      "avg_cvr": 0.030
    }
  },
  "publishers": {
    "pub_001": {
      "name": "TechReview Daily",
      "is_fraudulent": false,
      "fraud_type": null,
      "base_traffic_rate": 10000,
      "true_ctr": 0.021,
      "true_cvr": 0.031,
      "cpm_rate": 2.0,
      "budget_allocation": 0.5,
      "suspicion_reactivity": 1.0,
      "fraud_schedule": {},
      "fake_ctr": 0.0,
      "fake_cvr": 0.0,
      "day_factors": [1.0, 1.02, 0.98, 1.01, 1.03, 0.97, 0.95, 1.04, 1.01, 0.99, 1.02, 1.03, 0.98, 1.0],
      "noise_factors": [1.01, 0.99, 1.02, 0.98, 1.0, 1.01, 0.99, 1.01, 1.0, 0.99, 1.01, 1.0, 0.99, 1.01]
    },
    "pub_002": {
      "name": "BargainClicks Network",
      "is_fraudulent": true,
      "fraud_type": "bot_traffic",
      "base_traffic_rate": 8000,
      "true_ctr": 0.019,
      "true_cvr": 0.028,
      "cpm_rate": 2.0,
      "budget_allocation": 0.5,
      "suspicion_reactivity": 0.3,
      "fraud_schedule": {
        "start_day": 2,
        "ramp_days": 2,
        "peak_intensity": 3.5
      },
      "fake_ctr": 0.08,
      "fake_cvr": 0.0005,
      "day_factors": [1.0, 1.03, 1.08, 1.15, 1.20, 1.22, 1.20, 1.23, 1.25, 1.23, 1.25, 1.23, 1.22, 1.20],
      "noise_factors": [1.0, 1.01, 0.99, 1.02, 1.0, 0.98, 1.01, 1.0, 0.99, 1.02, 1.0, 0.98, 1.01, 1.0]
    }
  },
  "ground_truth": {
    "fraudulent_publishers": ["pub_002"],
    "fraud_types": {
      "pub_002": "bot_traffic"
    }
  }
}