Property talk:P2042

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Artsy artist ID
identifier at the Artsy website

Associated item	Artsy (Q4796642), Artsy (Q4796642)
Applicable "stated in" value	Artsy (Q4796642)
Data type	External identifier
Domain	According to this template: humans (artists) According to statements in the property: person (Q215627), group of humans (Q16334295) or photographic studio (Q672070) When possible, data should only be stored as statements
Allowed values	[a-z0-9-]{8,50} (generic string, 8 to 50 lowercase letters, digits or dashes, no spaces)
Example	Vincent van Gogh (Q5582) → vincent-van-gogh Marc Séguin (Q3288419) → marc-seguin
Formatter URL	https://www.artsy.net/artist/$1
Tracking: usage	Category:Pages using Wikidata property P2042 (Q45312082)
Related to country	United States of America (Q30) (See 770 others)
See also	Artsy gene (P2411), Visual AIDS Artist+ Registry ID (P7926)
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 Map of people by place values: place of birth educated at work location residence place of death place of burial January 1st dates People with date of birth on January 1 People with date of death on January 1 People with both dates on January 1 Mix'n'match (Report) Database reports/Humans with missing claims/P2042 Database reports/Constraint violations/P2042 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 22,663 Main statement 19,887 out of 50,000 (40% complete) 87.8% of uses Qualifier 3 <0.1% of uses Reference 2,773 12.2% of uses
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Distinct values: this property likely contains a value that is different from all other items. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2042#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

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

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Bror Julius Olsson Nordfeldt (Q4975372)
List of violations of this constraint: Database reports/Constraint violations/P2042#Single value, SPARQL

Format “[a-z0-9-]{2,60}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2042#Format, hourly updated report, SPARQL

Type “person (Q215627), group of humans (Q16334295), photographic studio (Q672070)”: item must contain property “instance of (P31)” with classes “person (Q215627), group of humans (Q16334295), photographic studio (Q672070)” 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/P2042#Type Q215627, Q16334295, Q672070, SPARQL

Item “occupation (P106)”: Items with this property should also have “occupation (P106)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Gorham Manufacturing Company (Q48386771), The Coca-Cola Company (Q3295867), Toronto Raptors (Q132880)
List of violations of this constraint: Database reports/Constraint violations/P2042#Item P106, search, SPARQL

Item “instance of (P31)”: Items with this property should also have “instance of (P31)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2042#Item P31, hourly updated report, 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/P2042#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/P2042#Scope, SPARQL