Property talk:P8404

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DOI formatter
formatter string where '$1' can be automatically replaced to create a DOI

Represents	digital object identifier (Q25670)
Data type	String
Domain	Wikidata property (Q18616576)
Allowed values	.*\$1.*
Example	Electronic Enlightenment ID (P3429) → 10.13051/ee:bio/$1 RfC ID (P892) → 10.17487/RFC$1
See also	third-party formatter URL (P3303), URN formatter (P7470), ARK formatter (P8054)
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) Database reports/Constraint violations/P8404 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 18 Main statement 14 77.8% of uses Qualifier 2 11.1% of uses Reference 2 11.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Type “Wikidata property (Q18616576)”: item must contain property “instance of (P31)” with classes “Wikidata property (Q18616576)” 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/P8404#Type Q18616576, SPARQL

Format “.*\$1.*”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P8404#Format, hourly updated report, SPARQL

Allowed entity types are Wikibase property (Q29934218): 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/P8404#Entity types

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/P8404#Scope, SPARQL

Item “property constraint (P2302)”: Items with this property should also have “property constraint (P2302)”. (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/P8404#Item P2302, search, SPARQL