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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

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.

TAX_LOT_FACE

sif6-3bej

← 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
the_geom	MultiLine	Understood	geometry.line Linear geometry	dictionary_read Geometry field used for mapping	—
block BLOCK	Number	Checked, no match	—	value_domain_read smallest=0 largest=16350	—
lot_uuid LOT_UUID	Text	Checked, no match	—	dictionary_read Internal feature number.	—
radius2 Radius2	Number	Not enough to tell	—	value_profile	—
boro BORO	Text	Understood	place.borough Borough	value_domain_read	borough
shape_length Shape__Length	Number	Checked, no match	—	value_profile smallest=-999 largest=13465.07	—
distance Distance	Number	Checked, no match	—	value_profile smallest=-999 largest=13465.07	—
lot_face_length_error LOT_FACE_LENGTH_ERROR	Number	Checked, no match	—	value_domain_read top[2]={0×3635912; 1×16068}	—
source SOURCE	Number	Checked, no match	—	dictionary_read indicates where the value of "Lot_Face_Length" was obtained	—
tax_lot_face_type TAX_LOT_FACE_TYPE	Number	Understood	category.classification Publisher classification	dictionary_read This field identifies the type of each lot face line.	—
arclength Arc Length	Number	Checked, no match	—	value_profile smallest=-999 largest=13465.07	—
lot LOT	Number	Checked, no match	—	value_domain_read smallest=0 largest=16350	—
lot_face_length LOT_FACE_LENGTH	Number	Checked, no match	—	value_profile smallest=-999 largest=13465.07	—
block_face_flag BLOCK_FACE_FLAG	Number	Checked, no match	—	value_domain_read top[2]={0×3635912; 1×16068}	—
bbl BBL	Text	Checked, no match	—	value_domain_read	—
direction Direction	Number	Checked, no match	—	value_profile smallest=0 largest=359.99970955	—
approx_length_flag APPROX_LENGTH_FLAG	Number	Checked, no match	—	value_domain_read top[2]={0×3635912; 1×16068}	—
radius Radius	Number	Checked, no match	—	value_profile smallest=-999 largest=13465.07	—