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Wikidata:Property proposal/NSK new ID

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NSK ID

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Originally proposed at Wikidata:Property proposal/Authority control

   Done: NSK ID (P14225) (Talk and documentation)
Descriptionidentifier for an item in the National and University Library in Zagreb
Data typeExternal identifier
Example 1Marko Marulić (Q336571) -> 981005657167209366
Example 2Croatian Academy of Sciences and Arts (Q1264085) -> 981005685441309366
Example 3Zagreb (Q1435) -> 981005676870409366
See alsoNSK (VIAF) ID (P1375)

Motivation

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WikiProject Authority control has more than 50 participants and couldn't be pinged. Please post on the WikiProject's talk page instead. NSK authority file migrated from Aleph to Alma in November 2025 and this implied a change of ID; more specifically the old 9-digit ID was moved from field 001 to field 035 and the new 18-digit ID replaced the old one as 001, so now the URLs to reach the authority file are constructed with the new ID; the old ID is still used to construct the URLs inside VIAF, but also there it will be soon replaced by the old ID. I requested a list of all the equivalences to NSK on December 9 (the same day I wrote in Property talk:P1375#New Alma IDs); NSK kindly provided them to me today, so I am ready to add the new ID to the 51497 items (list) containing the old one (NSK (VIAF) ID (P1375)) as soon as the property is created. --Epìdosis 20:23, 6 March 2026 (UTC)reply

Notified participants of WikiProject Croatia too. Epìdosis 20:24, 6 March 2026 (UTC)reply

Discussion

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 Support Thanks for taking care of this! --Jneubert (talk) 20:41, 6 March 2026 (UTC)reply
 Support Good job. --Kolja21 (talk) 21:03, 6 March 2026 (UTC)reply
 Support Thank you so much for taking care of this! I'm glad they sent you everything. Mcampany (talk) 23:38, 6 March 2026 (UTC)reply
 Support -- Bargioni 🗣 15:42, 7 March 2026 (UTC)reply
 Support Back ache (talk) 09:43, 19 March 2026 (UTC)reply
 Support -- Umarxon III (talk) 17:12, 24 March 2026 (UTC)reply
@Jneubert, Kolja21, Mcampany, Bargioni, Back ache: Thanks @ZI Jony:; between yesterday and today I have added 51646 new IDs with reference inferred from (P3452)inferred from the conversion of an older format of the ID (Q138818708) (https://w.wiki/KWcp) as a result of the conversion of the old IDs. We still have 177 old IDs which do not have a corresponding new ID and seem absent in the current NSK (https://w.wiki/KWcs); I will ask clarifications about them. --Epìdosis 07:55, 29 March 2026 (UTC)reply
I have rechecked all the strange things manually and I have found two types of issue (fortunately relatively few numerically). Firstly, in some cases the same old ID was present in many new IDs, one correct and all the others wrong; these are the cases I manually fixed:
  • 000550480 is considered the old ID of thirteen new IDs, one correct and twelve not
  • 000592278, 000593231 are considered the old ID of nine new IDs, one correct and eight not
  • 000593058 is considered the old ID of eight new IDs, one correct and seven not
  • 000592216 is considered the old ID of five new IDs, one correct and four not
  • 000549699, 000549624, 000551179 are considered the old ID of four new IDs, one correct and three not
  • 000589866, 000575434, 000579188, 000586104, 000562144 are considered the old ID of three new IDs, one correct and two not
  • 000564050, 000575741, 000578191, 000638067, 000590220, 000060924, 000592482, 000559446, 000552663, 000659739, 000579355, 000576512, 000704896, 000592192, 000559800, 000549946, 000563989, 000601401, 000562384, 000575162, 000606447, 000610017, 000580808, 000547993, 000570420, 000656296, 000580993, 000560686, 000592121, 000577809, 000534771, 000588464, 000580534, 000594996, 000589920, 000557958, 000600059, 000589726, 000589558 are considered the old ID of two new IDs, one correct and one not
Second: 14 old IDs seem not to have a new ID, although they were good authority records:
Apart from this, everything OK. Epìdosis 16:32, 31 March 2026 (UTC)reply