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Coverage

46,873 of 56,681 columns decided — 82.7% · 9,148 bound (16.1%) · 9,808 still unread

Bound: 9,148; 16.1%; a concept was found and asserted for the column.
Refused: 29,070; 51.3%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 8,655; 15.3%; read, but the evidence did not settle it.
Unanalysed: 9,808; 17.3%; nobody has read this column yet.

56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 12:55 PM

Where the unread columns are

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.

BUILDING_HISTORIC

ipkp-snf6

← What we have understood · Dataset page

Fields catalogued

Understood

Checked, no match

Nobody has looked

Most read — At least three quarters of their fields carry a verdict.

Every field in this dataset

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
shape_length Shape__Length	Number	Checked, no match	—	value_domain_read smallest=5.60546875 largest=101077.0625	—
base_bbl BASE_BBL	Text	Nobody has looked	—	—	—
objectid OBJECTID	Number	Checked, no match	—	value_domain_read card=50719 nonnull=50719 null=0 smallest=1 largest=50719	—
doitt_id DOITT_ID	Number	Checked, no match	—	value_domain_read smallest=0 largest=1306989	—
shape_area SHAPE_AREA	Number	Checked, no match	—	value_domain_read smallest=5.60546875 largest=101077.0625	—
ground_elevation GROUND ELEVATION	Number	Checked, no match	—	value_domain_read smallest=-6 largest=393	—
bin BIN	Number	Understood	place.bin Building Identification Number	operator_cohort matched by name, unread	bin
height_roof HEIGHT ROOF	Number	Checked, no match	—	value_domain_read smallest=-6 largest=393	—
name NAME	Text	Checked, no match	—	value_domain_read top[8 of 20]={NO NAME×3509; Terminal 3×2; 8 Washington Place×2; Jewish Theological Seminary×2; 123×2; Scandinavian House Foundation×2; U.S. Mission to the United Natio×2; unset×2}	—
feature_code FEATURE CODE	Number	Nobody has looked	—	—	—
the_geom	MultiPolygon	Not enough to tell	—	value_domain_read	—
demolition_year DEMOLITION YEAR	Number	Checked, no match	—	value_domain_read smallest=0 largest=2026	—
geom_source GEOM SOURCE	Text	Understood	category.classification Publisher classification	value_domain_read top[4]={Community District×2203; Precinct×1232; School district×192; School District×32}	—
last_edited_date LAST_EDITED_DATE	Date	Not enough to tell	—	value_profile	—
last_status_type LAST_STATUS_TYPE	Text	Understood	category.classification Publisher classification	value_domain_read top[4]={Community District×2203; Precinct×1232; School district×192; School District×32}	—
mappluto_bbl MAP PLUTO BBL	Text	Checked, no match	—	value_domain_read	—
construction_year CONSTRUCTION YEAR	Number	Checked, no match	—	value_domain_read smallest=0 largest=2026	—