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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 1:00 PM
3,026 datasets, 56,681 catalogued fields, 9,808 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.
qt5r-nqxp
← What we have understood · Dataset page
Every field decided — Every field carries a verdict — which does not mean every field is understood.
Covered and uncovered alike, in the order the publisher lists them. A field with no verdict is one nobody has looked at yet.
| Field | Type | What we know | Meaning | How it was decided | Shared term |
|---|---|---|---|---|---|
| new_value | Text | Checked, no match | — | value_domain_readtop[8 of 20]={1899×4593; 1910×4471; NYC PARKS DEPT×4235; 1900×3340; 1901×3285; 1920×2637; 0×2119; DCAS×1821} | — |
| reason | Text | Understood | category.classification Publisher classification | value_domain_readtop[8 of 18]={LPC year built×26346; Normalized owner name×14318; Zero lot area×2082; PTS error - units×143; PTS error - numfloors×28; Geosupport error - CD×9; PTS error - yearbuilt×7; PTS error – units×5} | — |
| type | Number | Understood | category.classification Publisher classification | dictionary_readFlag indicating the type of change | — |
| version | Text | Checked, no match | — | value_domain_readtop[8 of 20]={20v1×25959; 19v2×8784; 22v3×4336; 26v2×2082; 20v4×784; 22v1×689; 21v4×113; 24v2×62} | — |
| bbl BBL | Text | Understood | place.bbl Borough-Block-Lot | value_domain_read | bbl |
| field | Text | Understood | category.classification Publisher classification | value_domain_readtop[8 of 10]={yearbuilt×26354; ownername×14318; lotarea×2086; unitsres×83; unitstotal×74; numfloors×28; cd×9; lotfront×1} | — |
| old_value | Text | Checked, no match | — | value_domain_readtop[8 of 20]={1899×4593; 1910×4471; NYC PARKS DEPT×4235; 1900×3340; 1901×3285; 1920×2637; 0×2119; DCAS×1821} | — |