Wikidata talk:Property proposal/Authority control

Active discussions

all subpages · all talk subpages

retrieving AC identifiers from VIAF id'sEdit

Please see the VIAF id viaf:7524651 at Q868 Aristotle.

  1. there is a linkable "xA" identifier; should we add such a request?
  2. with the modified AC tool (as the test variant from [1]) one can see the WKP indication and additional identifiers
    Note: WKP is a fake / a hack please do not insert.
  3. it would be possible to retrieve any of the national identifiers; some are using duplicate entries as LAC and BAV; one could propose additional properties depending on language community needs
  4. it would be great help if Wikidata would define a dummy or test property for most data types ; I was searching for one with string datatype
לערי ריינהארט (talk) 02:42, 8 October 2013 (UTC)


What about having a "meta AC property" named "meta AC comment" or similar? The values could be added according to some rules and it should be possible to use regex for processing. More examples to come. לערי ריינהארט (talk) 08:14, 8 October 2013 (UTC)

NLI identifierEdit

Hi! Adding

NLI:{key:'NLI',p:0} , /* National Library of Israel */

to Magnus's tool will identify the NLI identifiers. see viaf:54129016 for Q467096 Solomon Mikhoels, viaf:27980301 for Q44738 Itzik Feffer etc. לערי ריינהארט (talk) 10:02, 9 October 2013 (UTC)

Please note that the same identifier is displayed multiple times for the "ara", "heb", "lat" and "rus" names. לערי ריינהארט (talk) 10:15, 9 October 2013 (UTC)
However Magnus's tool mekes them unique only one identifier is shown. 16:01, 9 October 2013 (UTC)

BAV indicatorEdit

I noticed that the "Vatian Library" is using the prefix "ADV" as ADV10180492 in Q52570 Valdemar Langlet. I wonder if all BAV entries have this prefix or not. Thanks for any help on this question! Beest regards!
לערי ריינהארט (talk) 11:25, 11 October 2013 (UTC)

DBC identifier or DBC (Denmark) identifierEdit

Q943567 Paul Goodman using viaf:14898058 contains DBC|8709791181544x in the "History of VIAF ID:14898058 (31) " section.
What do you think about adding a DBC identifier for the "Denmark (DBC)" authority control value linked to the VIAF records? My clone d:User:לערי ריינהארט/common.js version contains a line similar to:

DBC:{key:'DBC',p:0} , /* Denmark (DBC) */

See also the start of a discussion at the Danish community at da:user talk:Steenth#module_talk:Autoritetsdata

Regards לערי ריינהארט (talk) 08:33, 12 October 2013 (UTC)

That would be a good idea. I do not know why it is not already in. — Finn Årup Nielsen (fnielsen) (talk) 15:12, 28 September 2015 (UTC)

NPL identifier and NUKAT identifierEdit

See User_talk:Paweł_Ziemian! Thanks! לערי ריינהארט (talk) 11:45, 12 October 2013 (UTC)

Thanks for this contribution received at my user page:

NUKAT identifiersEdit

Hello! I've seen all your suggestions and even started thread about it in our technical forum. I looked around in the net about the NUKAT identifiers and found document describing its format. However, the NUKAT interface allows only to search the data in its database using titles or author names. There is no interface to access specific records of data using the identifiers. The identifiers are used internally only to export the data in Machine-Readable Cataloging (Q722609) format. There is an information in the NUKAT that they admit to cooperate with VIAF and OCLC. Until the NUKAT do not provide some interfaces to retrieve, validate or verify the identifiers defining the property to hold it is useless.

Technically the identifier format used since 2002 is l@yyyynnnnnn. Records assigned earlier have format l@@yynnnnnn. The l is letter (n, t, s, x, p or m), the @ is a space, yyyy is four digits year, yy last two digits of year and nnnnnn is a sequential number in the year, when the identifier was assigned. The specification is found here at page with number 16 (12th in PDF), and sorry it is in Polish only.

Regards. Paweł Ziemian (talk) 12:43, 12 October 2013 (UTC)

לערי ריינהארט (talk) 13:48, 12 October 2013 (UTC)

BLSA CEDA MUBZ via ISNIEdit contains: Sources:

  • BLSA

We should add BLSA, CEDA, MUBZ. לערי ריינהארט (talk) 14:37, 19 October 2013 (UTC)

NYBC (National Yiddish Book Center) identifier and Freedman (University of Pennsylvania) identifierEdit

Hi! National Yiddish Book Center (Q6979474) might use own identifiers.
Please see tje request at Wikidata:Property proposal/Authority control#YIVO (Yidisher Visnshaftlekher Institut) identifier.
Chava Alberstein (Q266555) shows a link to the Freedman Catalog, University of Pennsylvania . A sample link is [2] and a simpler version is [3]. A Freedman identifier would be 120. Regards לערי ריינהארט (talk) 20:28, 20 October 2013 (UTC)

What about these two identifiers?Edit

Should we also store:

  • Johann Wolfgang von Goethe = cnp01428211 ([4])
  • Goethe's Gedichte = ([5])

--Tobias1984 (talk) 14:42, 9 November 2013 (UTC)

CERL Thesaurus could be interesting. The European Library "identifier" is not useful as authority control. Since the records from the different libraries are not merged you will find three or more "identifiers" for a book. --Kolja21 (talk) 02:44, 10 November 2013 (UTC)
I've added a proposal for CERL. [6] I also wonder about Censimento nazionale delle edizioni italiane del XVI secolo (Q1053428) and Manus. --Federico Leva (BEIC) (talk) 09:44, 22 April 2015 (UTC)

WorldCat identityEdit

There is template Template:Authority control (Q3907614) and Module:Authority control (Q11640331) which use Library of Congress authority ID (P244) and VIAF ID (P214) to create WorldCat identity link. The LCCN has priority over VIAF. However there are exceptions. If exists both Library of Congress authority ID (P244) and VIAF ID (P214) there are cases when the identity should be created from VIAF instead of LCCN, or the WorldCat identity does not exist. Is it reasonable to create a new property to hold the value? It might be used only for exceptional cases, to define link using VIAF identifier, or specific LCCN value (if there is more than one, and the first does not work), or simply declare novalue. Paweł Ziemian (talk) 22:24, 23 September 2015 (UTC)

Imho WorldCat has not a real authority control ID. It's a library link that is using authority control. 5 persons merged in one "WorldCat identity" is not uncommon. (There is a feedback button for errors but rarely someone answers.) We should emphasize the difference between the work of librarians (LCAuth, GND etc.) and harvesting (VIAF & WorldCat). --Kolja21 (talk) 16:44, 28 September 2015 (UTC)


I am wondering about WordNet synset. Has there been any discussion of this? One issue is that the WordNet identifiers changes from version to version, so "09288635-n" in WordNet 3.0 would be a "geyser" but not necessarily in WordNet 3.1. I note that BabelNet ID is presently suggested as a Wikidata property. I am particularly think that ImageNet identifiers could be interesting to capture. Their WordNet identifiers are formatted slightly different (at least the 2012 version in caffe), e.g., "n09288635". For background see Årup Nielsen (fnielsen) (talk) 15:22, 28 September 2015 (UTC)

Is this just for people items?Edit

Is this authority control only meant for people? If so, why isn't called "Authority control person", or just "Person data"? --Jane023 (talk) 11:35, 1 October 2015 (UTC)

Also looking for any Wikipedia projects outside of enwiki that successfully pull data from these properties! --Jane023 (talk) 16:26, 1 October 2015 (UTC)
Jane023: Wikidata has a lot of properties that link to identifiers in other databases for paintings, companies, bands, heritage sites etc. etc. etc. These look a lot like the 'authority control' properties for authors. Are these 'authority control' properties? No one seems to care. Are they discussed on this page? Sometimes yes. Sometimes on other 'Property Proposal' pages. We really haven't had a lot of discussion here about what is and what isn't an 'authority control' property. Hope that helps a little. Joe Filceolaire (talk) 18:13, 6 October 2015 (UTC)
@Filceolaire: Thanks for that. I guess I gathered as much. My concern comes from looking at the "properties" currently listed in the authority control template on the English Wikipedia. The same name would indicate a crosswiki project of some sort. I noticed that the few libraries included in the template on the English Wikipedia can no longer be expanded because the template has been protected. This is dangerous I think because the words "authority control" sound semi-official which of course it isn't (that is not to say those libraries stink or anything like that, but they are for example 80% about humans, and we offer so many more subjects on Wikipedia). I think this is an undesirable situation, and the properties here should also not be called authority control either, but library or somesuch. The artwork properties we have been adding are themselves authority controls for artworks and so forth. --Jane023 (talk) 10:58, 7 October 2015 (UTC)
@Jane023: en:Authority control is not only for persons and should not be confused with library properties like Library of Congress Control Number (LCCN) (bibliographic) (P1144). The template:Entities gives you an overview what authority control can be used for. The English en:Template:Authority control is independent from Wikidata. They can import whatever property they want and add their own links. (WorldCat IDs for example are not "real" authority files. They use the authority control no. from the LoC.) --Kolja21 (talk) 19:52, 7 October 2015 (UTC)
@Jane023 a few months ago we got the ability to add claims to Properties. Since then many properties have had 'instance of (P31)' claims added and this has been used to describe properties as "authority control properties". I think this classification still needs some work so if you are really interested you might contribute there. Joe Filceolaire (talk) 21:39, 7 October 2015 (UTC)

Changing data type from string to external-id on several propertiesEdit

I didn't know where else to post for help on this. I found ISNI (P213) which is set to string type but should be external-id. I found a lot more after pulling up Special:ListProperties/string and giving some others spot checks. I assume most are holdouts that were missed in the recent conversion. Could some property gurus with access please contribute some time to convert them? Its pretty obvious which need to be worked on - look for names with abbreviations or that have a formatter url property. -- Netoholic (talk) 16:47, 14 April 2016 (UTC)


Removing {{Section resolved}}, as things don't work in that way on this page. But where to put this section? Do some nasty stuff and place it on Project chat April archive? Don't think, that this section has to be put in either this page disscusion page or archive of normal property proposals. --Edgars2007 (talk) 12:08, 20 April 2016 (UTC)

Moved to talk page. Lymantria (talk) 05:58, 25 April 2016 (UTC)

Little help with scientist IDsEdit

Any advice for a "newbie" of the topic here? Thank you.--Alexmar983 (talk) 09:11, 8 October 2017 (UTC)

External identifiersEdit

Hi All,

I wrote a proposal about expanding the statements regarding external identifiers, please have a look and add your opinions:,_best_practice --Adam Harangozó (talk) 20:50, 3 November 2019 (UTC)

New property neededEdit

For Q16830642. Perhaps someone would like to propose in an orderly manner. Cheers --[[kgh]] (talk) 09:59, 10 November 2019 (UTC)

Broken template - 15 Jan 2020Edit

Hello, there is a problem with the template. Adding a new property proposal, is available only a link, but not the box with information and motivation about my proposal. Does anyone know the reason? --LiaFla (talk) 12:34, 15 Jan 2020 (UTC)

It seems to be listed the first 27 proposals.. Remaining are listed just like links. ❙❚❚❙❙ JinOy ❚❙❚❙❙ 05:16, 15 March 2020 (UTC)
Sorry my mistake.. First 56 proposals only..-❙❚❚❙❙ JinOy ❚❙❚❙❙ 05:59, 15 March 2020 (UTC)
The page is currently in "Pages where template include size is exceeded", so I guess there is just too much template. --Misc (talk) 21:16, 24 March 2020 (UTC)

Please improve the instructions on providing examplesEdit


I've tried to write a couple of property proposals and have been told that I have to provide examples, but there are no instructions on what is needed, it just says <!-- {{Q|1}} → value --> which doesn't make any sense. Can someone write some more instructions in the template so I know what to do?


--John Cummings (talk) 01:07, 28 January 2020 (UTC)

Template include size is exceededEdit

At the bottom of the page it is in two ways visible that the page has too many (heavy) templates included on the page and the page is exceeding the limits. It has this category on it and at the bottom are now 12 subpages shown that are not included but automatically are only linked. It is great the page and templates used have all kinds of functionalities in them, but they are too heavy for the requests page. Some things that can be done:

  • Making the used templates less heavy.
  • Closing the old long standing requests with discussions and archiving them, by rejecting or approving them.
  • Creating the properties for obvious cases earlier.
  • Archiving requests for created properties earlier.
  • ...

Anyone ideas? Romaine (talk) 02:37, 22 May 2020 (UTC)

Return to the project page "Property proposal/Authority control".