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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 9:24 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.
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← What we have understood · Dataset page
Every field decided — Every field carries a verdict — which does not mean every field is understood.
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 |
|---|---|---|---|---|---|
| mailed_date MAILED DATE | Calendar date | Understood | time.period.month Month | value_profileDate when letter was mailed | — |
| rc4 RC4 | Number | Not enough to tell | — | value_profile | — |
| longitude Longitude | Number | Understood | geometry.longitude Longitude | value_profilesmallest=-74.254967 largest=-73.700384 | — |
| community_board Community Board | Number | Checked, no match | — | value_domain_read | — |
| rc_1 RC 1 | Text | Understood | category.classification Publisher classification | dictionary_readExempt Value Change other than fully exempt restored | — |
| revised_taxable_value REVISED TAXABLE VALUE | Number | Understood | quantity.money Monetary amount | sibling_corroborationThe financial worth assigned to property by taxing authorities | — |
| block BLOCK | Number | Checked, no match | — | value_domain_readsmallest=1 largest=16350 | — |
| revised_transitional_exemption REVISED TRANSITIONAL EXEMPTION | Number | Not enough to tell | — | value_profile | — |
| bin BIN | Number | Understood | place.bin Building Identification Number | operator_cohort matched by name, unread | bin |
| bbl BBL | Number | Checked, no match | — | value_domain_read | — |
| original_transitional_assessed_value ORIGINAL TRANSITIONAL ASSESSED VALUE | Number | Not enough to tell | — | value_profile | — |
| original_assessed_value ORIGINAL ASSESSED VALUE | Number | Understood | quantity.money Monetary amount | dictionary_read_underspecifiedThe most probable price that a property should command | — |
| bld_class BLD Class | Text | Understood | category.classification Publisher classification | dictionary_readThe Building Classification is used to describe a property’s constructive use | — |
| city_state_zip City, State, Zip | Text | Checked, no match | — | value_domain_readsmallest=ADDISLEIGH PARK NY 1143 | — |
| address_3 Address 3 | Text | Checked, no match | — | value_domain_readtop[8 of 20]={FL 6×180; FL 2×139 | — |
| address_2 Address 2 | Text | Understood | place.street_address Street address | dictionary_readaddress of the property as listed on the Sales File | — |
| original_taxable_value ORIGINAL TAXABLE VALUE | Number | Understood | quantity.money Monetary amount | dictionary_read_underspecifiedThe financial worth assigned to property by taxing authorities | — |
| original_market_value ORIGINAL MARKET VALUE | Number | Not enough to tell | — | value_profile | — |
| revised_assessed_value REVISED ASSESSED VALUE | Number | Understood | quantity.money Monetary amount | sibling_corroborationThe most probable price that a property should command | — |
| boro BOROCODE | Number | Understood | place.borough Borough | value_domain_read | borough |
| rc2 RC2 | Text | Understood | category.classification Publisher classification | dictionary_readExempt Value Change other than fully exempt restored | — |
| census_tract Census Tract | Number | Checked, no match | — | value_domain_read | — |
| community_council Council District | Number | Understood | place.council_district City Council District | value_domain_readcard=51 nonnull=22419 null=4893 smallest=1 largest=51 | — |
| postcode Postcode | Number | Checked, no match | — | value_domain_read | — |
| rc5 RC5 | Text | Not enough to tell | — | value_profile | — |
| borough Borough | Text | Checked, no match | — | value_domain_read | — |
| nta NTA | Text | Checked, no match | — | value_domain_read | — |
| revised_transitional_assessed_value REVISED TRANSITIONAL ASSESSED VALUE | Number | Not enough to tell | — | value_profile | — |
| ease EASE | Number | Not enough to tell | — | value_profile | — |
| lot LOT | Number | Checked, no match | — | value_domain_readsmallest=1 largest=16350 | — |
| rc3 RC3 | Number | Not enough to tell | — | value_profile | — |
| tax_class TAX CLASS | Number | Understood | category.classification Publisher classification | dictionary_readEvery property in the city is assigned to one of four tax classes | — |
| original_exemption ORIGINAL EXEMPTION | Number | Not enough to tell | — | value_profile | — |
| original_transitional_exemption ORIGINAL TRANSITIONAL EXEMPTION | Number | Not enough to tell | — | value_profile | — |
| country Country | Number | Not enough to tell | — | value_profile | — |
| address_1 Address 1 | Text | Checked, no match | — | value_domain_readtop[8 of 20]={FL 6×180; FL 2×139 | — |
| latitude Latitude | Number | Understood | geometry.latitude Latitude | value_profilesmallest=40.498738 largest=40.910833 | — |
| revised_market_value REVISED MARKET VALUE | Number | Not enough to tell | — | value_profile | — |
| revised_exemption REVISED EXEMPTION | Number | Not enough to tell | — | value_profile | — |