Property talk:P9976

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copyright registration
ID assigned by the US copyright office recording the registration of copyright for a creative work, or the renewal of such a copyright

Represents	copyright registration (Q5169284)
Data type	External identifier
Domain	version, edition or translation (Q3331189), film (Q11424), television program (Q15416), book (Q571), musical work (Q2188189) or creative work (Q17537576)
Allowed values	[A-Z][A-Za-z. ]*[\d-]+\d
Example	Gods' Man (Q108896867) → A15797 Prelude to a Million Years (Q108896902) → A68499 R273092
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/P9976 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 351 Main statement 346 98.6% of uses Qualifier 3 0.9% of uses Reference 2 0.6% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

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/P9976#Unique value, SPARQL (every item), SPARQL (by value)

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/P9976#Scope, 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/P9976#Entity types

Format “[A-Z][A-Za-z. ]*[\d-]+\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/P9976#Format, SPARQL

Required qualifier “object has role (P3831)”: this property should be used with the listed qualifier. (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/P9976#mandatory qualifier, SPARQL

Type “version, edition or translation (Q3331189), film (Q11424), television program (Q15416), book (Q571), musical work (Q2188189), creative work (Q17537576)”: item must contain property “instance of (P31)” with classes “version, edition or translation (Q3331189), film (Q11424), television program (Q15416), book (Q571), musical work (Q2188189), creative work (Q17537576)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P9976#Type Q3331189, Q11424, Q15416, Q571, Q2188189, Q17537576, hourly updated report, SPARQL

Item “copyright status (P6216)”: Items with this property should also have “copyright status (P6216)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P9976#Item P6216, hourly updated report, search, SPARQL

Item “publication date (P577)”: Items with this property should also have “publication date (P577)”. (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/P9976#Item P577, SPARQL

Required qualifier “point in time (P585)”: this property should be used with the listed qualifier. (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/P9976#mandatory qualifier, SPARQL

Citation needed: the property must have at least one reference (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/P9976#citation needed

Qualifiers “applies to part (P518), point in time (P585), object has role (P3831), subject named as (P1810)”: this property should be used only with the listed qualifiers. (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/P9976#allowed qualifiers, SPARQL