{
  "source": "UK Parliament APIs",
  "source_id": "erskine-may",
  "license": "Open Parliament Licence",
  "created_at_utc": "2025-12-21T16:02:33Z",
  "num_shards": 1,
  "num_documents": 1873,
  "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": 384864825
}