Property talk:P2378

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issued by
organisation or other agent that issues or allocates an identifier, code, classification number, etc.

Represents	no label (Q117012262)
Data type	Item
Domain	identifier (Q853614), passport (Q43812), identity document (Q47988), license (Q79719), certification (Q374814), travel advisory category (Q116026794) or patent (Q253623)
Example	Norwegian organization number (Q11994066) → Brønnøysund Register Centre (Q1770101) National Insurance number (UK) (Q5453916) → Department for Work and Pensions (Q1191394) ISO 639-3 code (Q56217712) → ISO 639-3 Registration Authority (Q61686260)
Tracking: usage	Category:Pages using Wikidata property P2378 (Q87178187)
See also	applicable 'stated in' value (P9073), issuing agent of work (P9901), publisher (P123), conferred by (P1027)
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 By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers 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/P2378 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 189,601 Main statement 4,824 2.5% of uses Qualifier 184,736 97.4% of uses Reference 41 <0.1% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Value type “organization (Q43229), website (Q35127), human (Q5), position (Q4164871), government program (Q22222786), government organization (Q2659904), project (Q170584)”: This property should use items as value that contain property “instance of (P31), subclass of (P279)”. On these, the value for instance of (P31), subclass of (P279) should be an item that uses subclass of (P279) with value organization (Q43229), website (Q35127), human (Q5), position (Q4164871), government program (Q22222786), government organization (Q2659904), project (Q170584) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: docket number (Q30040043), general practitioner (Q6500773)
List of violations of this constraint: Database reports/Constraint violations/P2378#Value type Q43229, Q35127, Q5, Q4164871, Q22222786, Q2659904, Q170584, SPARQL

Type “identifier (Q853614), passport (Q43812), identity document (Q47988), license (Q79719), certification (Q374814), travel advisory category (Q116026794), patent (Q253623)”: item must contain property “instance of (P31), subclass of (P279)” with classes “identifier (Q853614), passport (Q43812), identity document (Q47988), license (Q79719), certification (Q374814), travel advisory category (Q116026794), patent (Q253623)” 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). Known exceptions: boxed warning (Q879952)
List of violations of this constraint: Database reports/Constraint violations/P2378#Type Q853614, Q43812, Q47988, Q79719, Q374814, Q116026794, Q253623, SPARQL

Scope is as main value (Q54828448), as qualifier (Q54828449): 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/P2378#Scope, SPARQL

Allowed entity types are Wikibase item (Q29934200), 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/P2378#Entity types

This property is being used by: commons:Template:Authority control/IdentifierList row be-x-old:Шаблён:Пасьведчаньне асобы be-tarask:Шаблён:Пасьведчаньне асобы Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Use for property

Hi,

There is several constraint violation when issued by (P2378) is itself used on a property (issue raised by Manu1400). I suggest to replace {{Constraint:Type|class=Q1773882|relation=instance}} by {{Constraint:Type|classes=Q1773882,Q19847637|relation=instance}} to include properties. Is is right?

@Thryduulf, Pigsonthewing, Laddo, Jarekt, Strakhov, Fnielsen: as requestor and top users of this property (according to NavelGazer), what do you think?

Cdlt, VIGNERON (talk) 16:46, 23 June 2017 (UTC)

Looks good to me. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 20:52, 23 June 2017 (UTC)

Wikidata property for an identifier (Q19847637) is also OK, I believe. -- LaddΩ chat ;) 21:02, 23 June 2017 (UTC)

No objection from me. Thryduulf (talk) 18:19, 24 June 2017 (UTC)

 Done (and as always, feel free to revert if it isn't right). Cdlt, VIGNERON (talk) 17:05, 25 June 2017 (UTC)

subject type constraint

boxed warning (Q879952) seems to be a valid exception to this constraint. I can't find a more appropriate property, also warning label (Q10713132) class seems to be valid and no class specified in 'subject type constraint' can be applied here. Wostr (talk) 19:40, 10 October 2023 (UTC)

Include patents to "subject type constraint"

Despite being recommended by the Patents project, the current "subject type constraint" of "issued by" doesn't include "patent" (Q253623). If this doesn't raise objections, I will happily add it, since it would seem to conform to the description of this property ("organisation or other agent that issues or allocates an identifier, code, classification number, etc.") and Patents project's stance. Solarius (talk) 10:40, 21 October 2023 (UTC)

Made this change, as there were no objections voiced 👍 Solarius (talk) 15:25, 28 December 2023 (UTC)

Remove allowed-entity-types constraint (Q52004125) Wikibase property (Q29934218)

Semantically it makes more sense that this property is placed on external identifier items and not properties and this was agreed upon in https://www.wikidata.org/wiki/Wikidata:Project_chat/Archive/2022/12#Creation_of_items_for_all_external_identifier_identifers . Really it's "Wikidata" that issues properties.

Therefore I would like to move all the current uses to their EID items and remove this constraint. Fine?

@Swpb Lectrician1 (talk) 01:02, 13 January 2024 (UTC)

No, please do not do that. I think this property is and has always been the correct one to link external ID properties to the issuers of those IDs. It's certainly more appropriate for that role then P1629, which I thought you wanted to clear out anyway. It can certainly link Q items for IDs to the issuers as well. I think the concern that Wikidata issues properties is a little hair-splitty, and could easily be addressed with a property instruction that says that, when used on ID-datatype properties, "issued by" means the issuer of the ID the property refers to, not the Wikidata property itself (if such clarification is really needed; I tend to think it's not). Swpb (talk) 17:50, 13 January 2024 (UTC)

But then the property makes 2 different relationships and is conflated:

1. If on a EID property, the property's value is issued by "issued by"'s value.

2. If on an EID item, the item is issued by "issued by"'s value.

This is really bothersome to me. We shouldn't have properties that make 2 different realtionships. That's like having a "loves" property that indicates what an entity "loves" and "likes".

This seems like we're just preserving the status quo for the sake of it. Lectrician1 (talk) 17:59, 13 January 2024 (UTC)