{
  "namespace": "sra/sample",
  "key": "2026-08-24_Incremental",
  "completed_at": "2026-08-25T01:15:29.010228+00:00",
  "metadata": {
    "row_count": 9054,
    "parquet_parts": 1,
    "source_url": "https://ftp.ncbi.nlm.nih.gov/sra/reports/Mirroring/NCBI_SRA_Mirroring_20260824/meta_sample_set.xml.gz",
    "output_dir": "s3://omicidx/sra/raw/sample/date=2026-08-24/stage=Incremental"
  }
}