Property talk:P2748

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PRONOM file format ID
identifier (PUID) for a file format in the technical registry PRONOM

Represents	PRONOM (Q7120402)
Associated item	UK National Archives (Q392703)
Data type	External identifier
Domain	According to this template: file format (Q235557) According to statements in the property: file format (Q235557) or file format family (Q26085352) When possible, data should only be stored as statements
Allowed values	(x-)?fmt\/\d+
Example	TIFF (Q215106) → fmt/343 PostScript (Q218170) → x-fmt/408
Source	https://www.nationalarchives.gov.uk/pronom
Formatter URL	https://www.nationalarchives.gov.uk/pronom/$1
Tracking: usage	Category:Pages using Wikidata property P2748 (Q38537089)
See also	PRONOM software ID (P2749)
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/P2748 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 2,414 Main statement 2,395 99.2% of uses Qualifier 2 <0.1% of uses Reference 17 0.7% 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/P2748#Unique value, SPARQL (every item), SPARQL (by value)

Type “file format (Q235557), file format family (Q26085352)”: item must contain property “instance of (P31)” with classes “file format (Q235557), file format family (Q26085352)” 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/P2748#Type Q235557, Q26085352, 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/P2748#Single value, SPARQL

Format “(x-)?fmt/[0-9]+|”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2748#Format, hourly updated report, 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/P2748#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/P2748#Scope, SPARQL

This property is being used by: ca:Plantilla:Infotaula format de fitxer es:Plantilla:Ficha de estructura militar Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)