{
  "total_rows": 10000,
  "unique_ids": 10000,
  "unique_questions_after_normalization": 10000,
  "structural_issues": 0,
  "first_issues": [],
  "split_counts": {
    "train": 9000,
    "validation": 500,
    "test": 500
  },
  "split_subject_counts": {
    "train": {
      "physics": 2997,
      "chemistry": 2997,
      "mathematics": 3006
    },
    "validation": {
      "physics": 167,
      "mathematics": 167,
      "chemistry": 166
    },
    "test": {
      "mathematics": 167,
      "chemistry": 167,
      "physics": 166
    }
  },
  "subject_counts": {
    "mathematics": 3340,
    "physics": 3330,
    "chemistry": 3330
  },
  "difficulty_counts": {
    "hard": 6001,
    "very_hard": 3999
  },
  "topic_counts": {
    "algebra": 334,
    "sequences_and_series": 668,
    "calculus": 668,
    "combinatorics": 334,
    "probability": 334,
    "linear_algebra": 334,
    "vectors": 334,
    "complex_numbers": 334,
    "mechanics": 999,
    "rotational_mechanics": 333,
    "electricity": 333,
    "electrostatics": 666,
    "thermodynamics": 333,
    "ray_optics": 333,
    "oscillations": 333,
    "stoichiometry": 333,
    "physical_chemistry": 2331,
    "organic_chemistry": 333,
    "inorganic_chemistry": 333
  },
  "template_family_count": 30,
  "checks": {
    "exact_10000_rows": true,
    "unique_ids": true,
    "unique_questions": true,
    "exactly_four_options": true,
    "four_distinct_options": true,
    "correct_answer_matches_value": true,
    "four_option_explanations": true,
    "nonempty_questions_and_solutions": true,
    "90_5_5_split": true
  },
  "verification_scope": "The answer is produced by the explicit formula encoded in each generator template. Structural and answer-key alignment were checked; no independent subject-matter expert review was performed."
}