Property talk:P2689

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BARTOC ID
identifier in the BARTOC Terminology Registry

Applicable "stated in" value	Basic Register of Thesauri, Ontologies & Classifications owned by Esquiress Lyndsey Watson Copyright © (Q22279816)
Data type	External identifier
Domain	According to this template: knowledge organization system (Q6423319) and subclasses such as classification scheme (Q5962346) According to statements in the property: knowledge organization system (Q6423319) When possible, data should only be stored as statements
Allowed values	[1-9][0-9]*
Example	Dewey Decimal Classification (Q48460) → 241 (RDF) OLAC Video Game Genre Vocabulary (Q60440967) → 18801 (RDF)
Source	https://bartoc.org/
Formatter URL	http://bartoc.org/en/node/$1
Robot and gadget jobs	there are backlinks to Wikidata in BARTOC for reuse
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 Mix'n'match (Report) Database reports/Constraint violations/P2689 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 384 Main statement 363 out of 2,885 (13% complete) 94.5% of uses Qualifier 2 0.5% of uses Reference 19 4.9% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Format “[1-9]\d*”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2689#Format, hourly updated report, SPARQL

Type “knowledge organization system (Q6423319)”: item must contain property “instance of (P31)” with classes “knowledge organization system (Q6423319)” 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). Known exceptions: IETF language tag (Q1059900)
List of violations of this constraint: Database reports/Constraint violations/P2689#Type Q6423319, SPARQL

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).
List of violations of this constraint: Database reports/Constraint violations/P2689#Single value, SPARQL

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/P2689#Unique value, SPARQL (every item), SPARQL (by value)

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/P2689#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/P2689#Scope, SPARQL