{
  "generated_at_utc": "2026-09-30T17:49:48Z",
  "country": "AR",
  "region_code": "BA",
  "region_name": "Buenos Aires",
  "crop_source": "INTA Mapa Nacional de Cultivos",
  "fields_in_region_with_history": 1267192,
  "sample_size_requested": 100000,
  "sample_size_actual": 100000,
  "years": [
    2019,
    2025
  ],
  "seed": 42,
  "long_rows": 675637,
  "files": {
    "field_ids": "buenos-aires-fields-sample-field-ids.txt",
    "long_csv": "buenos-aires-fields-sample-long.csv",
    "long_parquet": "buenos-aires-fields-sample-long.parquet",
    "wide_csv": "buenos-aires-fields-sample-wide.csv",
    "wide_parquet": "buenos-aires-fields-sample-wide.parquet"
  },
  "notes": [
    "Field boundaries: Digifarm. Lat/lon are field centroids.",
    "Crop classes use the INTA Mapa Nacional de Cultivos legend (native codes, not the US CDL).",
    "One class per field-year from centroid sampling, so fraction is always 1.0."
  ]
}