Property talk:P3987

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SHARE Catalogue author ID
identifier for authors in SHARE Catalogue, a linked data federated catalogue of several Southern Italy universities

Applicable "stated in" value	SHARE Catalogue (Q56557486)
Data type	External identifier
Domain	human (Q5), organization (Q43229) or character that may or may not be fictional (Q21070598)
Allowed values	\d{1,7}
Example	Alfonso Gatto (Q2755854) → 195880 Savino Coronato (Q61444121) → 520 Ernesto de Martino (Q2755221) → 37814 Guglielmo Epifani (Q3119274) → 1081743
Source	https://catalogo.share-cat.unina.it/sharecat/clusters https://catalogo.share-cat.unina.it/sharecat/clusters?l=it
Formatter URL	https://catalogo.share-cat.unina.it/sharecat/searchNames?n_cluster_id=$1
Related to country	Italy (Q38) (See 402 others)
See also	Share-VDE 1.0 author ID (P6329), SHARE Catalogue work ID (P7609)
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 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 Mix'n'match (Report) Mix'n'match (Report) Database reports/Constraint violations/P3987 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 214,465 Main statement 208,991 97.4% of uses Qualifier 4 <0.1% of uses Reference 5,470 2.6% of uses
Search for values

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

Format “\d{1,7}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P3987#Format, hourly updated report, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

List of violations of this constraint: Database reports/Constraint violations/P3987#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

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/P3987#Single value, SPARQL

Type “human (Q5), organization (Q43229), character that may or may not be fictional (Q21070598)”: item must contain property “instance of (P31)” with classes “human (Q5), organization (Q43229), character that may or may not be fictional (Q21070598)” 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/P3987#Type Q5, Q43229, Q21070598, SPARQL

Allowed entity types are Wikibase item (Q29934200): 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/P3987#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): 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/P3987#Scope, SPARQL

Reports of possible problems in entries

This section is designed for the reports of possibly incorrect entries present in the catalog. Add reports as new points of the list (the line should start with *); comment entries using indentation (the line should start with *:), increase the indentation in order to continue the thread (so *::, then *:::, then *:::: etc.). --Epìdosis 23:57, 18 March 2021 (UTC)

• this cluster has wrong VIAF and Wikidata (the true person is Ernesto Stagni (Q105839097), not Ernesto Stagni (Q21542063)). --Epìdosis 23:57, 18 March 2021 (UTC)
• this cluster has wrong VIAF and Wikidata (no relationship with Alberto I della Scala (Q322158)). --Epìdosis 23:57, 18 March 2021 (UTC)
• this cluster has two problems: "Lacensis" instead of correct "Lucensis"; one book OK, the other one to be moved to this cluster. --Epìdosis 17:46, 27 March 2021 (UTC)
• this cluster should have "2" instead of "1" (it is clearly Tewodros II (Q262589)). --Epìdosis 11:10, 28 March 2021 (UTC)
• this cluster conflates Michel Fortin (Q76645533) and Michel Fortin (Q78211163). --Epìdosis 16:45, 12 April 2021 (UTC)
• this cluster names the author as "Antistius" whereas it should be "Antitus" (specifically Antitus Faure (Q30729001)). --Jahl de Vautban (talk) 17:25, 12 April 2021 (UTC)

Clusters invalidation tracking

I'm tracking changes made in the catalog that come from single value violations, particularly when there are redirects (or other reasons for deprecation of cluster identifiers). From this query you can see the deprecated ranks updated from time to time.

On the other hand, when I realize that clusters are being completely invalidated (take a look at this case for example) I delete the values directly, putting N/A in the corresponding entry in mix'n'match, while tracking them in a document of my own. Any suggestion is welcome. --Uomovariabile (talk) 11:45, 1 April 2022 (UTC)