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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, 5:51 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.

Historic Districts

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← What we have understood · Dataset page

Fields catalogued

Understood

Checked, no match

Nobody has looked

Under half read — Fewer than half 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
area_name LM_NAME	Text	Nobody has looked	—	—	—
status_of_ SITE_STATUS	Text	Nobody has looked	—	—	—
borough Borough	Text	Understood	place.borough Borough	value_domain_read	borough
caldate CALEN_DATE	Calendar date	Nobody has looked	—	—	—
desdate DESIG_DATE	Calendar date	Nobody has looked	—	—	—
current_ MOST_CURRENT	Text	Checked, no match	—	value_domain_read top[2]={No×840; Yes×174}; top[4]={N×5397; NO×5275; YES×1527; Y×183}; top[3]={NO×364155; YES×43978; Y×2320}; top[1]={YES×15286}; top[1]={Yes×141}; top[2]={No×125; Yes×13}	—
shape_leng Shape_Leng	Text	Nobody has looked	—	—	—
last_actio LAST_ACTION	Text	Nobody has looked	—	—	—
other_hear OTHER_HEARINGS	Text	Checked, no match	—	value_domain_read top[8 of 20]={5/7/2019×4; 6/13/1989×4; 4/12/1966×3; 6/2/1992×3; 3/24/2009×3; 11/22/1966×2; 5/10/1966×2; 10/18/2005; 12/13/2005×2}	—
boundary_n ACTION_NOTES	Text	Understood	text.free_text Free text note	dictionary_read Text field providing clarification	—
shape_area Shape_Area	Text	Nobody has looked	—	—	—
extension EXTENSION	Text	Checked, no match	—	value_domain_read top[2]={No×840; Yes×174}; top[4]={N×5397; NO×5275; YES×1527; Y×183}; top[3]={NO×364155; YES×43978; Y×2320}; top[1]={YES×15286}; top[1]={Yes×141}; top[2]={No×125; Yes×13}	—
public_hea PUBLIC_HEARING	Text	Checked, no match	—	value_domain_read top[8 of 20]={5/7/2019×4; 6/13/1989×4; 4/12/1966×3; 6/2/1992×3; 3/24/2009×3; 11/22/1966×2; 5/10/1966×2; 10/18/2005; 12/13/2005×2}	—
lp_number LP_NUMBER	Text	Nobody has looked	—	—	—
the_geom	Polygon	Understood	geometry.area Areal geometry	dictionary_read Geometry column	—