{
  "shards": [
    {
      "shard_id": "shard_000",
      "bin_sha256": "c3d4eb7e767d1fbde267dd3e0a65cb08ff5ef2ac767bf20f7f57a1f56b9efff1",
      "idx_sha256": "4eb6d2a656bba10ab73b2c64b7888cad87673419bf3e6ff062ced922ab16497c",
      "num_docs": 1468,
      "num_tokens": 3016548
    }
  ],
  "is_complete": true,
  "total_docs": 1468,
  "total_tokens": 3016548,
  "domain": "code",
  "source_dataset_repo": "codeparrot/github-code-clean",
  "source_revision": "main",
  "num_documents": 1468,
  "num_tokens": 3016548,
  "non_overlap_proof": {
    "method": "structural: code is not a content type FineWeb-Edu (a CommonCrawl-derived corpus) contains, so no url-membership test applies -- the categories cannot overlap by construction, not merely assumed not to. documents.jsonl records each accepted document's text_sha256 for audit regardless",
    "train_keys_cache": {
      "dir": "_runs/eval/heldout/_train_keys",
      "num_ids": 97270686,
      "num_urls": 71839948,
      "ids_file_sha256": "a5dfa00777a4b2afc1762034e49936d8d139046ed316246dfe349d48abe6b398",
      "urls_file_sha256": "1091c0eadf08f64c075804305e365612711f207526fa2ee822198c60e11b9a9b"
    },
    "documents_jsonl": "documents.jsonl (text_sha256/url/token_count + domain-specific fields per doc, for audit)"
  },
  "language_distribution": {
    "JavaScript": 249,
    "PHP": 162,
    "Markdown": 153,
    "HTML": 142,
    "C#": 117,
    "Java": 116,
    "C": 115,
    "Ruby": 99,
    "Python": 82,
    "C++": 53,
    "TypeScript": 50,
    "CSS": 29,
    "GO": 25,
    "Shell": 20,
    "Scala": 11,
    "SQL": 8,
    "TeX": 6,
    "Lua": 6,
    "Rust": 5,
    "Batchfile": 4,
    "CMake": 4,
    "Makefile": 4,
    "Julia": 2,
    "FORTRAN": 1,
    "PowerShell": 1,
    "Assembly": 1,
    "Perl": 1,
    "Dockerfile": 1,
    "Visual Basic": 1
  },
  "tokenizer": {
    "tokenizer_repo": "src/data/artifacts/tokenizer/smollm2",
    "tokenizer_source": "local_bundled",
    "tokenizer_revision": null,
    "tokenizer_source_revision": "effd688a12921b4cc83e3312b6feb579f70f9c71",
    "vocab_size": 49152,
    "bos_id": 0,
    "eos_id": 0,
    "tokenizer_key_file_sha256": {
      "tokenizer.json": "9ca9acddb6525a194ec8ac7a87f24fbba7232a9a15ffa1af0c1224fcd888e47c",
      "tokenizer_config.json": "4bb9af56a342753d39374f4016a16574cab299fe088e896f425ce3c433f61424",
      "special_tokens_map.json": "e786b595b9a23148bf1630df78d9037a048ea671e48bfd3549a1e3c233742bb3"
    },
    "document_framing": {
      "bos_prepended": false,
      "eos_appended": true,
      "eos_id": 0
    }
  },
  "generating_commit": "51fec6e42ab8750f79b3ddf5f4a3751e72fa5db5",
  "generating_command": "/scratch/pioneer/users/sxw992/iclr-looped/src/data/build_domain_heldout.py --domain code --target-tokens 3000000 --tokenizer-name smollm2",
  "generated_at_utc": "2026-09-22T07:32:22.761630+00:00"
}