Property talk:P12934

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The House of Graphs ID
ID for an undirected graph on houseofgraphs.org

Represents	House of Graphs (Q130219571)
Data type	External identifier
Domain	undirected graph (Q3115587)
Allowed values	^[1-9]\d*$
Example	triangle graph (Q3115619) → 1374 Hajós graph (Q30747987) → 36261 cubical graph (Q3115569) → 1022
Source	https://houseofgraphs.org/
Formatter URL	https://houseofgraphs.org/graphs/$1
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/Constraint violations/P12934 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 181 Main statement 178 out of 24,725 (1% complete) 98.3% of uses Qualifier 3 1.7% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

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/P12934#Single value, SPARQL

Format “^[1-9]\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/P12934#Format, 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/P12934#Entity types

Type “undirected graph (Q3115587)”: item must contain property “instance of (P31)” with classes “undirected graph (Q3115587)” 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/P12934#Type Q3115587, SPARQL

Scope is as main value (Q54828448): 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/P12934#Scope, SPARQL