{
  "seed": 42,
  "sample_size_per_domain": 100000,
  "output": {
    "hf_dataset": "local/data/openreasoning/mix_300k",
    "jsonl": "local/data/openreasoning/mix_300k.jsonl",
    "summary": "local/data/openreasoning/mix_300k_summary.json"
  },
  "sources": {
    "math": {
      "repo": "nvidia/OpenMathReasoning",
      "revision": "d3d08664755704f422af97d43a7ff0ded4bd95df",
      "eligible_rows": 5678317,
      "sampled": 100000,
      "eligible_split_rows": {
        "additional_problems": 193170,
        "cot": 3201061,
        "genselect": 565620,
        "tir": 1718466
      },
      "sampled_split_rows": {
        "additional_problems": 3394,
        "cot": 56381,
        "genselect": 10048,
        "tir": 30177
      }
    },
    "science": {
      "repo": "nvidia/OpenScienceReasoning-2",
      "revision": "174b02c9cdf231f220765b2a1d5ece4550921894",
      "eligible_rows": 1600812,
      "sampled": 100000
    },
    "code": {
      "repo": "nvidia/OpenCodeReasoning",
      "revision": "20a1ca19c0d050fe9057fc08339d6b370ec1c67a",
      "eligible_rows": 567850,
      "sampled": 100000,
      "included_split": "split_0",
      "excluded_split": "split_1",
      "exclusion_reason": "split_1 input is '-' and requires external APPS/TACO reconstruction"
    }
  },
  "removed_source_fields": {
    "math": [
      "generated_solution",
      "generation_model"
    ],
    "science": [
      "output"
    ],
    "code": [
      "output",
      "solution"
    ]
  },
  "final": {
    "rows": 300000,
    "domain_counts": {
      "science": 100000,
      "math": 100000,
      "code": 100000
    },
    "assistant_message_counts": {
      "science": 100000,
      "math": 99943
    },
    "columns": [
      "messages",
      "domain",
      "source",
      "source_path",
      "source_id",
      "source_label",
      "prompt_sha1"
    ]
  },
  "notes": [
    "Remote parquet reads use column projection; raw source datasets and model outputs are not stored.",
    "Math/science retain only their independent expected_answer as a short assistant label.",
    "Code rows contain only a user message because all available solutions are model-generated."
  ]
}