Property talk:P2960

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archive date
date a document was archived

Description	The date a document was archived
Represents	archive (Q166118)
Data type	Point in time
Example	According to this template: Fragments of Him (Q25264345) http://web.archive.org/web/20160704094105/http://www.metacritic.com/game/xbox-one/fragments-of-him → archive date: 4 July 2016 http://web.archive.org/web/20160704094120/http://www.metacritic.com/game/pc/fragments-of-him → archive date: 4 July 2016 According to statements in the property: Fragments of Him (Q25264345) Ministry of Education, Science Sports and Culture (Q11080185) When possible, data should only be stored as statements
Robot and gadget jobs	Possibly. For web.archive.org, bots can read the date which an archive took place.
See also	Internet Archive ID (P724)
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) Chart by item creation date Future dates Dates in Gregorian calendar before 1582 Dates before year 1 (Help:Dates#Years BC) Date on January 1 (Help:Dates#January 1 as date) Database reports/Complex constraint violations/P2960 Database reports/Constraint violations/P2960 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 148,739 Main statement 353 0.2% of uses Qualifier 24,942 16.8% of uses Reference 123,444 83% of uses

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

Scope is as reference (Q54828450), 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/P2960#Scope, SPARQL

Allowed entity types are Wikibase item (Q29934200), Wikibase lexeme (Q51885771), Wikibase property (Q29934218), Wikibase form (Q54285143), Wikibase sense (Q54285715), Wikibase MediaInfo (Q59712033): 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/P2960#Entity types

Only on qualifiers and references
use this property only on qualifiers and references (Help)
Violations query: SELECT ?item { ?item p:P2960/ps:P2960 ?value }
List of this constraint violations: Database reports/Complex constraint violations/P2960#Only on qualifiers and references

constraints

This property currently carries two constraints: used as qualifier constraint (Q21510863) and used as reference constraint (Q21528959). I assume the intended meaning is that the property can be used on qualifiers and references, but not for the main value of a statement; however, the actual interpretation by the checkConstraints gadget is that the property cannot be used anywhere at all (it violates one or both of the constraints wherever it is used). To fix this problem, I suggest removing the constraints.

(Pinging Yair rand, who kind of predicted this problem in phabricator:T102749#1833170. Feel free to open a task for supporting this, especially if you know of more cases than this one.) --Lucas Werkmeister (WMDE) (talk) 16:36, 19 December 2017 (UTC)

Lucas Werkmeister (WMDE)
Jarekt - mostly interested in properties related to Commons
MisterSynergy
John Samuel
Sannita
Yair rand
Jon Harald Søby
Pasleim
Jura
PKM
ChristianKl
Sjoerddebruin
Fralambert
Manu1400
Was a bee
Malore
Ivanhercaz
Peter F. Patel-Schneider
Pizza1016
Ogoorcs
ZI Jony
Eihel
cdo256
Epìdosis
Dhx1
99of9
Mathieu Kappler
Lectrician1
SM5POR
Infrastruktur

Notified participants of WikiProject property constraints, --Lucas Werkmeister (WMDE) (talk) 18:54, 15 January 2018 (UTC)

• Same problem as on Wikidata_talk:WikiProject_property_constraints#Use_as_value/use_as_reference/use_as_qualifier_constraint_>>>_not_reference,_not_value,_not_qualifier.
  --- Jura 19:42, 15 January 2018 (UTC)
• When following the guide at Help:Sources to add a reference with an archive url (archive URL (P1065)) and date (archive date (P2960)), the result is a confusing warning that states "The property should only be used as a qualifier.". Looks like the issue is still not resolved. I've gone ahead and removed the constraints for the time being, until this can be resolved properly. --Krinkle (talk) 23:26, 30 March 2018 (UTC)
  • Following Lucas' suggestion in the thread I mentioned above, I tried a setting the might allow it to work correctly.
    --- Jura 12:44, 1 April 2018 (UTC)

before 1980

I removed the constrain before 1980 as we have several professors with their works moved to archives far before 1980. Probably 1980 was added with the assumption all archives are digitl, but we have papers too --Hannolans (talk) 20:22, 22 September 2019 (UTC)