{"product":"Measured or Modeled","basis":"released_cohort","provenance_policy":"Every published figure derives from the released 2OGS cohort. Every modeled value carries acs_modeled, confidence_low, confidence_high, basis and covariate_basis, or it is refused rather than partially served. Excluded cohorts are named with a reason and never counted, zeroed or dropped.","release":{"release_id":"2ogs-ncrd-release-2026-09-07","announced_at":"2026-09-07T23:35:00Z","joined_at":"2026-09-08T00:58:08.692326+00:00","join_key":"row_key, equivalently (zip, route_code)","manifest_url":"https://yiqwbkvcokukjutxkfrn.supabase.co/functions/v1/ncrd-row-manifest","manifest_digests_reproduced":true,"vintage":"acs_2019_2023_5yr_route_apportioned"},"read_at":"2026-09-12T03:00:18.747723+00:00","source_url":"https://owaggydbtywlmgfwvqtz.supabase.co/functions/v1/ncrd-granularity","source_path_modeled_values":"https://owaggydbtywlmgfwvqtz.supabase.co/functions/v1/route-demographics/{state}/{county}","totals":{"released_routes":192981,"served_rows_attributed":195436,"usps_roster_identity":233675,"roster_identity_note":"Historical, not live. The figure this site used to publish. Not the sellable surface; no share is derived from it.","roster_identity_source":"USPS carrier-route roster identity, as carried in MEC's NCRD granularity serve (total_routes). This is the figure this site published before the released-cohort standard was applied.","roster_identity_vintage":"2026-02 roster vintage · counts window 2026-08-25","removed_by_standard":40694,"removed_by_standard_note":"We used to publish 233,675 US routes. 40,694 of them came out when the data was held to the released-cohort standard.","reconciles":true,"reconcile_note":"Per-state released rows sum to 192,981 exactly."},"excluded_cohorts":[{"cohort":"withheld","label":"Withheld","rows":186,"reason":"Withheld upstream on the ZIP-set flat multi-route test. Never served as route-level evidence.","ruling":"Permanently off the sellable surface.","on_sellable_surface":false},{"cohort":"missing_confidence_band","label":"Missing confidence band","rows":113,"reason":"Sparse, model-data-thin routes — 46 rural, 37 highway, 30 city — whose modeled figures arrived without a confidence band. A value without a band is a failed read, not a partial one, and we invent no bands.","ruling":"Permanently excluded, never back-filled.","on_sellable_surface":false},{"cohort":"not_in_return","label":"Not in return","rows":2156,"reason":"Genuine USPS-rostered routes (2026-02 roster vintage, 2026-08-25 counts window) absent from the released 2OGS return. Named, not silently dropped and not silently included. A supply-refresh request to 2OGS is on file.","ruling":"Permanently excluded pending a supply refresh.","on_sellable_surface":false},{"cohort":"gate_rejected","label":"Gate-rejected","rows":20012,"reason":"Quarantined by 2OGS before release. Neither ingested, inferred nor back-filled by the relay — absent, never zero.","ruling":"Never entered the released cohort.","on_sellable_surface":false}],"modeled_value_contract":{"required_fields":["acs_modeled","covariate_basis","confidence_low","confidence_high"],"rule":"A modeled value missing any required field is a failed read: the value is refused, nothing is shown, and the refusal is attributed.","count_rows_owe_no_band":true,"no_aggregate_of_modeled_columns":"No national or per-state average of a modeled column is published, because a confidence band cannot be aggregated away.","covariate_basis_vintage":"acs_2019_2023_5yr_route_apportioned","per_route_source_path":"https://owaggydbtywlmgfwvqtz.supabase.co/functions/v1/route-demographics/{state}/{county}"},"provenance_classes":[{"code":"A","label":"USPS deliverable counts","status":"measured","columns":12,"note":"Counted by USPS at carrier-route level. Never affected by the demographic contamination."},{"code":"C","label":"Income, education & behaviour","status":"modeled","columns":30,"note":"Permanently modeled. ACS is published at block group and no finer, so no route-level value of these can be measured from any source, at any date."},{"code":"B","label":"Population & household structure","status":"modeled","columns":19,"note":"ZIP+4 to decennial block placement. The decennial is a 100% count; the placement is not yet graded, so this class is labeled modeled until it is."}],"disclosure":"Provenance classes: A USPS deliverable counts = measured. B population/household/age/race structure = modeled (ZIP+4 to decennial block, placement not yet graded). C income, education, psychographics = modeled permanently; ACS is published at block group and no finer, so no route-level value of these is measured from any source.","states_index":"/api/public/state/{STATE_CODE}","routes_index":"/api/public/routes/{STATE_FIPS}/{COUNTY_FIPS}","llms_txt":"/llms.txt"}