Property talk:P9964

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Kalliope-Verbund (GND) ID
identifier for an entity in the Kalliope-Verbund database

Associated item	Berlin State Library (Q170109), Kalliope (Q1722480)
Applicable "stated in" value	Kalliope (Q1722480)
Data type	External identifier
Domain	human (Q5), organization (Q43229), architectural structure (Q811979), event (Q1656682), mythical character (Q4271324), intellectual work (Q15621286), geographic entity (Q27096213) or legendary figure (Q13002315)
Allowed values	(1[0123]?\d{7}[0-9X]|[47]\d{6}-\d|[1-9]\d{0,7}-[0-9X]|3\d{7}[0-9X])
Example	Charlemagne (Q3044) → 118560034 Johann Wolfgang von Goethe (Q5879) → 118540238 Leila von Meister (Q95207486) → 116871180 Johannes Gutenberg (Q8958) → 118543768 Carl Theodor Welcker (Q64180) → 11863075X International Youth Library (Q575153) → 1005531-9 Rotbuch Verlag (Q1631876) → 2032251-3
Source	https://kalliope-verbund.info/de/index.html
Formatter URL	https://kalliope-verbund.info/gnd/$1 https://kalliope-verbund.info/de/eac?eac.id=$1 https://kalliope-verbund.info/en/eac?eac.id=$1
Related to country	Germany (Q183) (See 384 others)
See also	GND ID (P227)
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 external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Items with deprecated claims Deprecated statements with this identifier as a source 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/Constraint violations/P9964 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 292,989 Main statement 292,917 >99.9% of uses Qualifier 7 <0.1% of uses Reference 65 <0.1% of uses
Search for values

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

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

List of violations of this constraint: Database reports/Constraint violations/P9964#Entity types, hourly updated report

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P9964#Scope, hourly updated report, SPARQL

Format “(1[0123]?\d{7}[0-9X]|[47]\d{6}-\d|[1-9]\d{0,7}-[0-9X]|3\d{7}[0-9X])”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P9964#Format, hourly updated report, SPARQL

Item “GND ID (P227)”: Items with this property should also have “GND ID (P227)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P9964#Item P227, hourly updated report, search, SPARQL

Type “human (Q5), organization (Q43229), architectural structure (Q811979), event (Q1656682), mythical character (Q4271324), intellectual work (Q15621286), geographic entity (Q27096213), legendary figure (Q13002315)”: item must contain property “instance of (P31), subclass of (P279)” with classes “human (Q5), organization (Q43229), architectural structure (Q811979), event (Q1656682), mythical character (Q4271324), intellectual work (Q15621286), geographic entity (Q27096213), legendary figure (Q13002315)” 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).
List of violations of this constraint: Database reports/Constraint violations/P9964#Type Q5, Q43229, Q811979, Q1656682, Q4271324, Q15621286, Q27096213, Q13002315, SPARQL

Item “VIAF cluster ID (P214)”: Items with this property should also have “VIAF cluster ID (P214)”. (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/P9964#Item P214, search, SPARQL

Single value: this property generally contains a single value. (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/P9964#Single value, 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/P9964#Unique value, SPARQL (every item), SPARQL (by value)

Other identifiers than GND

Right now the property is limited to GND identifiers. What is the best way to change this? @UWashPrincipalCataloger, Emu: FYI. --Kolja21 (talk) 14:25, 2 April 2023 (UTC)

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[copied from my talk page]

Hi! I have just discovered the existence of Kalliope-Verbund (GND) ID (P9964); just about 100 uses, surely redundant with GND ID (P227) (it was noticed by Jura in the proposal, in fact, but it was nevertheless created). I'm thinking of proposing its deletion ... would I be wrong? Thanks, --Epìdosis 16:01, 1 April 2023 (UTC)

Kalliope uses GND but it's an independent database = de:Vorlage:Kalliope. I don't know why Wikidata property example (P1855) only shows GNDs. There are other identifiers like CH-002121-2-991170522280805501 = Sokrates und das Göttliche von Hans-Georg Gadamer. Imho formatter URL (P1630) (and the values?) needs to be corrected. --Kolja21 (talk) 22:22, 1 April 2023 (UTC)

OK. As of now the property is scoped for humans and organizations; they are all present in GND, right? If so, we could erase all the present values of the property (you could propose in the property talk page) and rescope it for documents. Would you agree? --Epìdosis 13:10, 2 April 2023 (UTC)

[copy end]

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Hm. To be honest, I’m struggling to come up with ideas that wouldn’t create more problems than they solve … --Emu (talk) 14:31, 2 April 2023 (UTC)

Possible course of action:

• https://kalliope-verbund.info/gnd/$1 should be changed to https://kalliope-verbund.info/$1
• The values needs to be corrected

Imho we should be able to use this property for humans, organizations and documents. (The German template has two parameters: person and object.) --Kolja21 (talk) 14:41, 2 April 2023 (UTC)

I'm about to add archives at (P485)-statements for personal archives (Nachlass (Q3827332)) as listed in Kalliope. The data quality is good, the data is machine-readable, and thanks to the use of authority data IDs it's quite easy create tighter links between people in Wikdiata and archival material related to them.

As every item in Kalliope has an ID (record identifier as URI, e.g. https://kalliope-verbund.info/DE-611-BF-60457) that not only identifies the records but allows direct access to both a human (https://kalliope-verbund.info/DE-611-BF-60457) and machine-readable representation of the resource (https://kalliope-verbund.info/sru?version=1.2&operation=searchRetrieve&query=context.ead.id=DE-611-BF-60457&recordSchema=mods37), it would be useful to add this identifier. Kalliope-Verbund (GND) ID (P9964) as it is now is not appropriate for this purpose.

Kalliope even has an internal ID for 'agents' that probably don't have a GND ID (yet), e.g. https://kalliope-verbund.info/agents/855878 (dataset: https://kalliope-verbund.info/DE-611-BF-126009). It's not exposed or searchable, but used internally. The GND ID as it is used here is not really used, I think. They use the GND ID to identify people, so you can search for GND IDs. Moreover, for people they catalogue material, they generate a page accessible via the persistent URL `http://kalliope-verbund.info/gnd/...`. I wouldn't necessarily argrue for the deletion of Kalliope-Verbund (GND) ID (P9964), but I think that the other identifiers mentioned above would make more sense for Wikidata. Awinkler3 (talk) 19:39, 22 February 2026 (UTC)