Property talk:P8165

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Maryland's National Register Properties ID
numerical identifier for a structure or a building listed in the National Register of Historic Places in the Maryland's National Register Properties database

Associated item	Maryland Historical Trust (Q6781338)
Applicable "stated in" value	Maryland's National Register Properties (Q91759375)
Data type	External identifier
Domain	geographical feature (Q618123) or artificial physical object (Q8205328)
Allowed values	\d+
Example	Catoctin Furnace (Q5053820) → 71 Jericho Covered Bridge (Q6182147) → 495 Thomas Run Church (Q7793675) → 456
Source	https://mht.maryland.gov/nr/NRDBSearch.aspx
Formatter URL	https://apps.mht.maryland.gov/NR/NRDetail.aspx?NRID=$1
Related to country	United States of America (Q30) (See 762 others) (Maryland (Q1391))
See also	Medusa NRHP ID (P8282)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Complex constraint violations/P8165 Database reports/Constraint violations/P8165 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 272 Main statement 194 71.3% of uses Qualifier 3 1.1% of uses Reference 75 27.6% of uses
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Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Unique value, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (Help)

List of violations of this constraint: Database reports/Constraint violations/P8165#Single value, hourly updated report, SPARQL

Format “\d+”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Format, SPARQL

Type “geographical feature (Q618123), artificial physical object (Q8205328)”: item must contain property “instance of (P31)” with classes “geographical feature (Q618123), artificial physical object (Q8205328)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Type Q618123, Q8205328, SPARQL

Item “country (P17): United States of America (Q30)”: Items with this property should also have “country (P17): United States of America (Q30)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P8165#Item P17, hourly updated report, search, SPARQL

Item “located in the administrative territorial entity (P131)”: Items with this property should also have “located in the administrative territorial entity (P131)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Item P131, search, SPARQL

Item “coordinate location (P625)”: Items with this property should also have “coordinate location (P625)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Item P625, SPARQL

Item “heritage designation (P1435): National Register of Historic Places listed place (Q19558910)”: Items with this property should also have “heritage designation (P1435): National Register of Historic Places listed place (Q19558910)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Item P1435, search, SPARQL

Item “NRHP reference number (P649)”: Items with this property should also have “NRHP reference number (P649)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Item P649, search, SPARQL

Item “Medusa NRHP ID (P8282)”: Items with this property should also have “Medusa NRHP ID (P8282)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Item P8282, search, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8165#Scope, SPARQL

Items without ID
Items in Maryland (Q1391) that do have National Register of Historic Places listed place (Q19558910) in heritage designation (P1435), but not Maryland's National Register Properties ID (P8165) (Help)
Violations query: SELECT ?item WHERE { ?item wdt:P131* wd:Q1391 . ?item wdt:P1435 wd:Q19558910 . MINUS { ?item wdt:P8165 [] . } } LIMIT 1000
List of this constraint violations: Database reports/Complex constraint violations/P8165#Items without ID