Property talk:P2322

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article ID
identifier for an article in an online publication

Represents	article identifier (Q20745627)
Data type	String
Domain	According to this template: article (Q191067) According to statements in the property: article (Q191067) When possible, data should only be stored as statements
Allowed values	[0-9a-zA-Z]+ (no clear pattern across journals, though mostly alphanumeric; rather consistent within a given journal or publisher)
Example	Ecological guild evolution and the discovery of the world's smallest vertebrate (Q15567682) → e29797 Academic Performance and Behavioral Patterns (Q31158777) → 10 Propaganda in Motion. Dziga Vertov`s and Aleksandr Medvedkin`s Film Trains and Agit Steamers of the 1920s and 1930s (Q36403083) → 2
Source	ideally, the article itself, sometimes the journal's table of contents (note: this information should be moved to a property statement; use property source website for the property (P1896))
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 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/Constraint violations/P2322 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 54,305 Main statement 27,797 51.2% of uses Qualifier 26,480 48.8% of uses Reference 28 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Type “article (Q191067)”: item must contain property “instance of (P31)” with classes “article (Q191067)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2322#Type Q191067, hourly updated report, SPARQL

Format “[0-9a-zA-Z\-]+”: 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/P2322#Format, SPARQL

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

List of violations of this constraint: Database reports/Constraint violations/P2322#Single value, hourly updated report, SPARQL

Item “title (P1476)”: Items with this property should also have “title (P1476)”. (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/P2322#Item P1476, SPARQL

Item “published in (P1433)”: Items with this property should also have “published in (P1433)”. (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/P2322#Item P1433, SPARQL

Item “publication date (P577)”: Items with this property should also have “publication date (P577)”. (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/P2322#Item P577, 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/P2322#Entity types