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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, 11:51 PM

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.

TAX_BLOCK_POLYGON

akq4-haa2

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
eop_overlap_flag EOP_OVERLAP_FLAG	Number	Checked, no match	—	value_domain_read top[2]={1×164373; 0×14574}	—
jagged_st_flag JAGGED_ST_FLAG	Number	Checked, no match	—	value_domain_read top[2]={1×164373; 0×14574}	—
block BLOCK	Number	Checked, no match	—	value_domain_read top[8 of 20]={4271×7; 2420×7; 839×5; 5066×5; 61×4; 879×4; 3251×4; 892×4}	—
section_number SECTION_NUMBER	Number	Checked, no match	—	value_domain_read top[8 of 13]={1×8050; 2×6483; 3×5330; 4×4334; 5×3157; 6×2415; 7×1422; 8×1054}	—
boro BORO	Text	Understood	place.borough Borough	value_domain_read	borough
volume_number VOLUME_NUMBER	Number	Checked, no match	—	value_domain_read top[8 of 13]={1×8050; 2×6483; 3×5330; 4×4334; 5×3157; 6×2415; 7×1422; 8×1054}	—
the_geom	MultiPolygon	Understood	geometry.area Areal geometry	dictionary_read Geometry field used for mapping	—