Property talk:P1938

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Project Gutenberg author ID
author identifier at Project Gutenberg

Description	Author identifier at Project Gutenberg (Q22673) (www.gutenberg.org)
Associated item	Project Gutenberg (Q22673)
Applicable "stated in" value	Project Gutenberg (Q22673)
Data type	External identifier
Domain	According to this template: People, possibly groups, companies etc. According to statements in the property: agent (Q24229398), pseudonym (Q61002) or character that may or may not be fictional (Q21070598) When possible, data should only be stored as statements
Allowed values	[1-9][0-9]{0,4} (numeric string, 1 to 5 digits)
Example	David Christie Murray (Q16031468) → 25179 (RDF) Hector Berlioz (Q1151) → 31953 (RDF)
Source	External links section on Wikipedia; Project Gutenberg (note: this information should be moved to a property statement; use property source website for the property (P1896))
Formatter URL	https://gutenberg.org/ebooks/author/$1
Tracking: same	no label (Q27218067)
Tracking: differences	no label (Q27218070)
Tracking: usage	Category:Pages using Wikidata property P1938 (Q27218073)
Tracking: local yes, WD no	no label (Q27218069)
See also	Project Gutenberg ebook ID (P2034), Aozora Bunko author ID (P7311)
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/Humans with missing claims/P1938 Database reports/Constraint violations/P1938 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 21,645 Main statement 18,879 87.2% of uses Qualifier 2 <0.1% of uses Reference 2,764 12.8% of uses
Search for values

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

Format “[1-9][0-9]{0,4}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P1938#Format, hourly updated report, 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). Known exceptions: Frederic Shoberl (Q5497135), Peter Ditchfield (Q7173680)
List of violations of this constraint: Database reports/Constraint violations/P1938#Single value, SPARQL

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/P1938#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

Type “agent (Q24229398), pseudonym (Q61002), character that may or may not be fictional (Q21070598)”: item must contain property “instance of (P31)” with classes “agent (Q24229398), pseudonym (Q61002), character that may or may not be fictional (Q21070598)” 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/P1938#Type Q24229398, Q61002, Q21070598, SPARQL

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P1938#Scope, hourly updated report, 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/P1938#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/P1938#Entity types

This property is being used by: it:Template:Gutenberg autore; it:Template:Collegamenti esterni la:Formula:Fontes biographici s:ru:Шаблон:Внешние ссылки sk:Šablóna:Infobox Filozof, sk:Šablóna:Infobox Generálny tajomník OSN, sk:Šablóna:Infobox Osobnosť, sk:Šablóna:Infobox Panovník, sk:Šablóna:Infobox Profesionálny wrestler, sk:Šablóna:Infobox Rehoľníčka, sk:Šablóna:Infobox Snookerista, sk:Šablóna:Infobox Spisovateľ, sk:Šablóna:Infobox Svätec, sk:Šablóna:Infobox Vedec, sk:Šablóna:Infobox Rehoľník es:Plantilla:Gutenberg autor Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)