Property talk:P4174

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Wikimedia username
user name of a person across all Wikimedia projects

Associated item	Wikimedia Foundation (Q180)
Has quality	case sensitive (Q257869)
Data type	External identifier
Domain	human (Q5), Wikimedia bot (Q108702521) or organization (Q43229)
Allowed values	[^\/\{\}\[\]\|#<>]+ (The following characters are not allowed in page titles: # < > [ ] | { })
Usage notes	Disclosing others' usernames violates the WMF privacy policy and may result in a block; see Wikidata:Oversight if you want to remove your information.
Example	Jimmy Wales (Q181) → Jimbo_Wales Magnus Manske (Q13520818) → Magnus_Manske
Formatter URL	https://www.wikidata.org/wiki/Special:CentralAuth?target=$1 https://en.wiktionary.org/wiki/User:$1 https://www.mediawiki.org/wiki/User:$1 https://meta.wikimedia.org/wiki/User:$1 https://en.wikiquote.org/wiki/User:$1 https://en.wikibooks.org/wiki/User:$1 https://en.wikivoyage.org/wiki/User:$1 https://en.wikiversity.org/wiki/User:$1 https://en.wikinews.org/wiki/User:$1 https://ms.wikipedia.org/wiki/Pengguna:$1 https://bn.wikipedia.org/wiki/ব্যবহারকারী:$1 https://ca.wikipedia.org/wiki/Usuari:$1 https://en.wikipedia.org/wiki/User:$1 https://meta.wikimedia.org/wiki/Special:CentralAuth/$1 https://www.wikidata.org/wiki/User:$1 https://species.wikimedia.org/wiki/User:$1 https://commons.wikimedia.org/wiki/User:$1 https://sr.wikipedia.org/wiki/Корисник:$1 https://wikisource.org/wiki/User:$1
See also	website account on (P553)
Lists	Wikipedia:Wikipedians with articles (Q11621914) 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 Map of people by place values: place of birth educated at work location residence place of death place of burial January 1st dates People with date of birth on January 1 People with date of death on January 1 People with both dates on January 1 Database reports/Complex constraint violations/P4174 Database reports/Constraint violations/P4174 Map Random list
Living people protection class	property that may violate privacy (Q44601380)
Proposal discussion	Proposal discussion
Current uses	Total 3,593 Main statement 2,913 81.1% of uses Qualifier 35 1% of uses Reference 645 18% of uses
Search for values

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

Type “human (Q5), Wikimedia bot (Q108702521), organization (Q43229)”: item must contain property “instance of (P31)” with classes “human (Q5), Wikimedia bot (Q108702521), organization (Q43229)” 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: Purrrrrcy (Q123303563)
List of violations of this constraint: Database reports/Constraint violations/P4174#Type Q5, Q108702521, Q43229, SPARQL

Format “[^\/\{\}\[\]\|#<>]+|”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P4174#Format, hourly updated report, SPARQL

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/P4174#Unique value, SPARQL (every item), SPARQL (by value)

Conflicts with “website account on (P553): Wikipedia (Q52), Wiktionary (Q151), Wikisource (Q263), Wikiquote (Q369), Wikinews (Q964), Wikidata (Q2013), Wikimedia Meta-Wiki (Q1063116), MediaWiki.org (Q15633578), Wikimedia Commons (Q565), Wikimedia Foundation project (Q14827288), Wikiversity (Q370), Wikispecies (Q13679), Wikivoyage (Q373), English Wikipedia (Q328)”: this property must not be used with the listed properties and values. (Help)

List of violations of this constraint: Database reports/Constraint violations/P4174#Conflicts with P553, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200), 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/P4174#Entity types

Scope is as main value (Q54828448), 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/P4174#Scope, 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/P4174#citation needed

WMDE
(Help)
Violations query: SELECT ?item ?value { ?item wdt:P4174 ?value. FILTER (STRENDS( ?value, "(WMDE)" )) FILTER NOT EXISTS { ?item p:P1416 [] } FILTER NOT EXISTS { ?item p:P108 [] } FILTER NOT EXISTS { ?item p:P463 [] } FILTER NOT EXISTS { ?item wdt:P106 wd:Q3809586 } }
List of this constraint violations: Database reports/Complex constraint violations/P4174#WMDE

WMF
(Help)
Violations query: SELECT ?item ?value { ?item wdt:P4174 ?value. FILTER (STRENDS( ?value, "(WMF)" )) FILTER NOT EXISTS { ?item p:P1416 [] } FILTER NOT EXISTS { ?item p:P108 [] } FILTER NOT EXISTS { ?item p:P463 [] } FILTER NOT EXISTS { ?item p:P106 [] } FILTER NOT EXISTS { ?item p:P968 [] } FILTER NOT EXISTS { ?item p:P2037 [] } }
List of this constraint violations: Database reports/Complex constraint violations/P4174#WMF

Pattern ^User:(.*)$ will be automatically replaced to \1. Testing: TODO list

This property is being used by: n:ru:Шаблон:Оформление категории b:ru:Шаблон:Оформление категории n:bg:Шаблон:Оформяне на категория v:en:Template:QID icons incubator:Template:Wn/tg/Ороиши гурӯҳ n:eo:Ŝablono:Temkategorio 2 Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

related country: United States?

IDK Why? --Liuxinyu970226 (talk) 00:25, 28 October 2018 (UTC)

agreed, I removed the claim. ArthurPSmith (talk) 18:14, 29 October 2018 (UTC)

References

Why do statements with this property need a reference? The link goes to CentralAuth, so it can be easily checked if the Wikimedia username belongs to the item. Esteban16 (talk) 02:33, 6 February 2019 (UTC)

2019-08 P1630

@Sonic N800: About P1630, why special:diff/545852403 ? Visite fortuitement prolongée (talk) 20:40, 16 August 2019 (UTC)

Entries with space didn't work

This property is replacing the space " " by a "+" sign, so every entry with a space in it isn't working (click on the examples about Jimbo and Magnus and you'll see). Simon Villeneuve (talk) 14:36, 12 December 2019 (UTC)

@Simon Villeneuve: Huh? The examples work for me??? Maybe you have a javascript gadget that's messing up the links? ArthurPSmith (talk) 15:03, 12 December 2019 (UTC)

Strange. I've try unconnected on another browser (Chrome, the first one is Firefox) and I have the same problem. Simon Villeneuve (talk) 15:06, 12 December 2019 (UTC)

@Simon Villeneuve: Oh wait, I spoke too soon - the links in the examples on this talk page work fine, with a "%20" for the space character, but the links in the examples on the main property page do not (with a '+' for the space) as you said. Did something recently change in the Wikidata UI translation of space characters in formatter URL's? ArthurPSmith (talk) 15:16, 12 December 2019 (UTC)

Sample: Jürgen Cieslak (Q19287397). Conny (talk) 16:51, 2 January 2020 (UTC).

Is it possible to fix that? Regards, Conny (talk) 06:02, 10 February 2020 (UTC). So the sample works: [1] . Conny (talk) 06:03, 10 February 2020 (UTC).

Is there an user with the experience to fix that? Regards, Conny (talk) 17:28, 8 April 2020 (UTC).

Wikimedia username:

I'm adding "Wikimedia username:" to my work here. I then get a "!" where it's stated "citation needed constraint" and that I need to add a reference.
I have read and tried numerous variations of https://commons.wikimedia.org/wiki/User:Goran_tek-en but no one has been accepted.
What am I supposed to put there?Goran tek-en (talk) 12:33, 15 July 2021 (UTC)