{
  "source": "Wikimedia XML dump",
  "dump_path": "data/dumps/wikipedia/cywiki-latest-pages-articles-multistream.xml.bz2",
  "language": "cy",
  "license": "CC BY-SA 3.0 (Wikipedia content; attribution required)",
  "namespace": 0,
  "skip_redirects": true,
  "min_chars_per_page": 400,
  "include_title": true,
  "created_at_utc": "2025-12-21T15:22:43Z",
  "num_shards": 2,
  "num_documents": 258813,
  "format": "nanochat-parquet-v1",
  "text_column": "text",
  "row_group_size": 1024,
  "parquet": {
    "compression": "zstd",
    "compression_level": 3,
    "use_dictionary": false,
    "write_statistics": false
  },
  "target_shard_bytes": 104857600,
  "initial_chars_per_shard": 250000000,
  "final_chars_per_shard_estimate": 500000000
}