Property talk:P271

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NACSIS-CAT author ID
identifier for book authors in NACSIS-CAT, the union catalog for university libraries and research institutions in Japan

Description	authority records of CiNii (Q10726338) (Scholarly and Academic Information Navigator, pronounced like "sigh-knee")
Associated item	National Institute of Informatics (Q4346622)
Applicable "stated in" value	NACSIS-CAT (Q11234325)
Has quality	VIAF component (Q26921380), prefix (Q134830), check digit (Q1337960)
Data type	External identifier
Template parameter	ja:Template:Normdaten
Domain	human (Q5), organization (Q43229), group of humans (Q16334295), position (Q4164871), person or organization (Q106559804), fictional person (Q97498056), agent (Q24229398), jurisdiction (Q5982983), government (Q7188) or geographic location (Q2221906)
Allowed values	(DA|DB)\d{7}[\dX]
Example	Archimedes (Q8739) → DA01926703 (RDF) Katsuko Saruhashi (Q7300) → DA00691772 (RDF) Graduate School of Urban Innovation, Yokohama National University (Q125120954) → DB00214511 (RDF)
Source	https://ci.nii.ac.jp/books/
Formatter URL	https://ci.nii.ac.jp/author/$1 https://ci.nii.ac.jp/author/$1.json https://ci.nii.ac.jp/author/$1.rdf
Tracking: usage	Category:Articles with CINII identifiers (Q55404415)
Related to country	Japan (Q17) (See 145 others)
See also	NACSIS-CAT bibliography ID (P1739), NII author ID (P4787), NII article ID (P2409), CiNii Research ID (P11496), ‎NACSIS-CAT library ID (P12494)
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) Database reports/Complex constraint violations/P271 Database reports/Humans with missing claims/P271 Database reports/Constraint violations/P271 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 186,893 Main statement 186,670 out of 1,846,280 (10% complete) 99.9% of uses Qualifier 4 <0.1% of uses Reference 219 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)

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/P271#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/P271#Scope, SPARQL

Format “(DA|DB)\d{7}[\dX]”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P271#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/P271#Unique value, 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/P271#Single value, SPARQL

Item “instance of (P31)”: Items with this property should also have “instance of (P31)”. (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/P271#Item P31, search, SPARQL

Type “human (Q5), organization (Q43229), group of humans (Q16334295), position (Q4164871), person or organization (Q106559804), fictional person (Q97498056), agent (Q24229398), jurisdiction (Q5982983), government (Q7188), geographic location (Q2221906)”: item must contain property “instance of (P31)” with classes “human (Q5), organization (Q43229), group of humans (Q16334295), position (Q4164871), person or organization (Q106559804), fictional person (Q97498056), agent (Q24229398), jurisdiction (Q5982983), government (Q7188), geographic location (Q2221906)” 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/P271#Type Q5, Q43229, Q16334295, Q4164871, Q106559804, Q97498056, Q24229398, Q5982983, Q7188, Q2221906, SPARQL

Conflicts with “instance of (P31): Wikimedia disambiguation page (Q4167410), Wikimedia category (Q4167836), Wikimedia list article (Q13406463), Wikimedia template (Q11266439), Wikimedia module (Q15184295)”: this property must not be used with the listed properties and values. (Help)

List of violations of this constraint: Database reports/Constraint violations/P271#Conflicts with P31, hourly updated report, SPARQL

Conflicts with “NACSIS-CAT bibliography ID (P1739)”: this property must not be used with the listed properties and values. (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/P271#Conflicts with P1739, search, SPARQL

Invalid NACSIS-CAT ID
NACSIS-CAT ID that have wrong checksum (see https://catill.bitbucket.io/CM/furoku2_1.html) (Help)
Violations query: SELECT ?item ?value { { ?item wdt:P271 ?value } UNION { ?statement pq:P271 ?value . ?item ?p ?statement . ?prop wikibase:claim ?p } UNION { ?ref pr:P271 ?value . ?statement prov:wasDerivedFrom ?ref . ?item ?p ?statement . ?prop wikibase:claim ?p } . FILTER( STRLEN(?value) = 10 ) . BIND(xsd:string(STRLEN(STRBEFORE("0123456789@ABCDEFGHIJKLMNOPQRSTUVWXYZ", SUBSTR(?value, 1 , 1 )))) AS ?digit1) . BIND(xsd:string(STRLEN(STRBEFORE("0123456789@ABCDEFGHIJKLMNOPQRSTUVWXYZ", SUBSTR(?value, 2 , 1 )))) AS ?digit2) . BIND( xsd:integer(SUBSTR(?digit1, STRLEN(?digit1), 1)) * 9 + xsd:integer(SUBSTR(?digit2, STRLEN(?digit2), 1)) * 8 + xsd:integer(SUBSTR(?value, 3, 1)) * 7 + xsd:integer(SUBSTR(?value, 4, 1)) * 6 + xsd:integer(SUBSTR(?value, 5, 1)) * 5 + xsd:integer(SUBSTR(?value, 6, 1)) * 4 + xsd:integer(SUBSTR(?value, 7, 1)) * 3 + xsd:integer(SUBSTR(?value, 8, 1)) * 2 + xsd:integer(SUBSTR(?value, 9, 1)) - xsd:integer(REPLACE(SUBSTR(?value, 10, 1), "X", "10")) AS ?checksum ) . FILTER( FLOOR(?checksum / 11) != (?checksum / 11) ) } ORDER BY ?value
List of this constraint violations: Database reports/Complex constraint violations/P271#Invalid NACSIS-CAT ID

Pattern ^(1\d{18})$ will be automatically replaced to \1 and moved to CiNii Research ID (P11496) property. Testing: TODO list

Pattern ^((?:A[ABN]|B[A-DN])[0-9]{7}[0-9X])$ will be automatically replaced to \1 and moved to NACSIS-CAT bibliography ID (P1739) property. Testing: TODO list

This property is being used by: Template:Authority control (Q3907614) ko:틀:위키데이터 속성 추적 Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

format pattern

last character seems to be an checksum that allows X as value, see Q76 --Akkakk 00:21, 4 June 2013 (UTC)

Property constraint CiNii author identifier

Hi! project:Database reports/Constraint violations/P271 still shows:

Data time stamp: 6 August 2013 0:00 UTC — Items processed: 13

Regards לערי ריינהארט (talk) 10:57, 3 November 2013 (UTC)

relation between P271 and P396

Hi! dropping a note

As far as I can remember the links aT SBN author ID (P396) contain two links at NACSIS-CAT author ID (P271) . Are both properties Italian identifiers? Regards לערי ריינהארט (talk) 22:27, 17 November 2013 (UTC)

Added identifiers to National Institute of Informatics (Q4346622) and renamed the eo: label to "CiNii (internacia) identigilo". Should we use a "global" / "world" flag? לערי ריינהארט (talk) 10:30, 18 November 2013 (UTC)

NRID form

There is another type of author page at, for example, https://ci.nii.ac.jp/nrid/9000363887724 - which does not match the formatter URL or regex for P271. Why is there a second scheme? Can we make use of it? Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 19:07, 15 January 2018 (UTC)

@Pigsonthewing: If i'm not mistaken, DA is the author ID of NACSIS-CAT bibliography ID (P1739) and nrid the author ID of NII article ID (P2409), we will probably need a new "CiNii article author ID" property and rename NACSIS-CAT author ID (P271) to "CiNii book author ID". --Thibaut120094 (talk) 00:54, 18 January 2018 (UTC)

Yes; so I have made a proposal, at Wikidata:Property proposal/CiNii author ID (articles) and renamed this property accordingly. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 10:19, 18 January 2018 (UTC)

Thank you. --Thibaut120094 (talk) 23:44, 18 January 2018 (UTC)

Property labels

This property represents NACSIS-CAT author ID (Q117190864), which is an ID for author records in NACSIS-CAT system, so I changed the Japanese and English property label. CiNii Books (Q115920710) is the name of web service to make the catalog accessible from the Internet, the successor of NACSIS Webcat (1997-2013), and currently planned to be fully integrated into CiNii Research (Q115920372). The service name changes, but the background catalog, NACSIS-CAT, did not change the name, so it is highly preferable to use the catalog name as the property label, in my opinion. Mzaki (talk) 06:09, 5 January 2024 (UTC)

And I have flushed property labels and descriptions in all other languages (with only a few exception) to promote updating the translation, saving old labels as an alias. The situation of label & description translation was very confusing among several CiNii-related properties (NACSIS-CAT author ID (P271), NACSIS-CAT bibliography ID (P1739), NII article ID (P2409), NII author ID (P4787), and CiNii Research ID (P11496)), so it seems a good opportunity to rebuild it from a scratch. I am sorry for the inconvenience. Mzaki (talk) 07:15, 5 January 2024 (UTC)

I disagree with the changing of this label. When you go to the site and look at the catalog record for a person, e.g. https://ci.nii.ac.jp/author/DA13997480, all you see in English is CiNii and in the HTML header CiNii Books. CiNii Books (https://support.nii.ac.jp/ja/cib/manual_outline) is the name of the site and therefore this property should reflect that. Users of CiNii Books would not recognize NACSIS-CAT. The property is for an author in CiNii Books. I oppose changing this without community agreement. AdamSeattle (talk) 02:08, 31 January 2024 (UTC)

NII officially announced the termination of the CiNii Books service (2011-) and integration into CiNii Research [1], and this was already done for CiNii Articles [2] to which NII author ID (P4787) had linked. In the case of CiNii Articles, Isamu Akasaki (Q1673706)NII author ID (P4787)1000020144115 is now redirected to https://cir.nii.ac.jp/crid/1030003658315385348 in the CiNii Research, where we cannot recognize "CiNii Articles" except that the entry shows it as one of the data sources. For IDs currently used in CiNii Books, Katsuko Saruhashi (Q7300)NACSIS-CAT author ID (P271)DA00691772 will be redirected to https://cir.nii.ac.jp/crid/1140563741661134848, where we cannot recognize "CiNii Books" excepting in the data source and the ID is mentioned just "Author ID". In contrast, NACSIS-CAT is a long-lasting catalog since 1985, and several software vendors sell OPAC systems using NACSIS-CAT. So NACSIS-CAT author ID (P271) is an externally used property under the name of NACSIS-CAT, and we just use CiNii Books as a convenient link target accessible from the Internet. For example, Webcat Plus is another service using NACSIS-CAT accessible from the Internet (only available in Japanese), where entries are connected to CiNii Books under the name of "NACSIS-CAT著者名典拠". We have been troubled for several CiNii FooBars properties since most of us cannot differentiate them. To prevent further confusion, we should move to use the correct property label. Mzaki (talk) 15:35, 1 February 2024 (UTC)