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Coverage

56,681 of 56,681 columns decided — 100.0% · 12,642 bound (22.3%) · 0 still unread

Bound: 12,642; 22.3%; a concept was found and asserted for the column.
Refused: 32,953; 58.1%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 11,086; 19.6%; read, but the evidence did not settle it.
Unanalysed: 0; 0.0%; 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, 8:25 PM

Where the unread columns are

3,026 datasets, 56,681 catalogued fields, 0 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.

LIBRARY

feuq-due4

← What we have understood · Dataset page

Fields catalogued

Understood

Checked, no match

Nobody has looked

Every field decided — Every field carries a verdict — which does not mean every field is understood.

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
housenum HOUSENUM	Text	Checked, no match	—	value_domain_read smallest=10 largest=985 \| smallest=104 Street largest=York Avenue	—
y Y	Number	Understood	geometry.projected_coordinate.northing Northing	value_domain_read smallest=125007.163094 largest=268543.647017	—
bbl BBL	Text	Checked, no match	—	value_domain_read	—
url URL	Text	Checked, no match	—	value_domain_read smallest=http://www.bklynlibrary.org/ largest=http://www.queenslibrary.org	—
name NAME	Text	Checked, no match	—	value_domain_read smallest=115th Street largest=Yorkville	—
zip ZIP	Text	Understood	place.zip ZIP Code	value_domain_read	zip
system SYSTEM	Text	Understood	actor.organization Organization	value_domain_read top[3]={NYPL×92; QPL×65; BPL×59}	—
borocode BOROCODE	Number	Understood	place.borough Borough	value_domain_read	borough
bin BIN	Number	Understood	place.bin Building Identification Number	operator_cohort matched by name, unread	bin
streetname STREETNAME	Text	Checked, no match	—	value_domain_read smallest=10 largest=985 \| smallest=104 Street largest=York Avenue	—
the_geom	Point	Understood	geometry.point Point geometry	value_domain_read {'type': 'Point', 'coordinates': [-73.…(clipped)×	—
city CITY	Text	Checked, no match	—	value_domain_read top[8 of 20]={Brooklyn×59; New York×44; Bronx×35; Staten Island×13; Flushing×9; Long Island City×6; Jamaica×4; Bayside×3}	—
x X	Number	Understood	geometry.projected_coordinate.easting Easting	value_domain_read smallest=916370.601298 largest=1063264.07861	—