{
  "schema_version": 6,
  "built_at": "2026-07-22T17:12:32Z",
  "pipeline_commit": "62bc1b6",
  "fixture_note": "Four-year (2011, 2012, 2019, 2020) fixture for uscogdata tests. Full corpus available via USCOGDATA_URL. Regenerated for Phase R2 (schema_version 5, harmonization_map/harmonization_recipes/ series_breaks parquet tables added). 2011/2012 straddle the wide-aggregate -> modern-leaf format boundary exercised by basis= \"harmonized\" and recipe= queries; 2019/2020 retain the prior per-capita/CPI regression anchors. Full canonical_fips_xwalk master and canonical_alias lookup table included via data-raw/regenerate_fixture_corpus.R.",
  "data_vintage": {
    "source_vintages": {
      "2012": "10162019",
      "2013": "10162019",
      "2014": "10162019",
      "2015": "10162019",
      "2016": "10162019",
      "2017": "06102021",
      "2018": "06102021",
      "2019": "06102021",
      "2020": "06122023",
      "2021": "06122023",
      "2022": "06052025",
      "2023": "06052025"
    },
    "registry_rows": 148,
    "acs_vintage": "ACS 2018-2022 5-year"
  },
  "scope": {
    "gov_types_included": [0, 1, 2, 3],
    "gov_types_excluded": [4, 5],
    "scope_note": "v0.1 covers state, county, city/municipality, and township governments. Special districts (type 4) and school districts (type 5) are excluded pending validation in a future cycle."
  },
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    "long_column_count": 28,
    "long_columns": ["fips_state", "type", "fips_county", "govid", "gov_blank", "gov_name", "county_name", "fips_state_asof", "fips_county_asof", "cog_legacy_state", "cog_legacy_county", "fips_place_code", "population", "popyear", "enrollment", "enrollyear", "function_code", "sch_level_code", "fiscal_year_end", "srvy_year", "item_code", "amt", "srv_data", "impute_flag", "is_aggregate", "canonical_govid", "harmonized_code", "survey_weight"],
    "data_dictionary": "docs/data_dictionary.md"
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  "reader_spec_ref": "docs/reader-specification.md"
}