Property talk:P818

Documentation

• Start a query
• Current uses
• Statistics by class
• String length
• List of qualifiers
• Count

arXiv ID
identifier of a document in arXiv pre-print archive

Description	Eprint identifier
Applicable "stated in" value	arXiv (Q118398)
Data type	External identifier
Template parameter	Template:Cite arXiv (Q6927043)
Domain	sources (note: this should be moved to the property statements)
Allowed values	(\d{4}.\d{4,5}|[a-z\-]+(\.[A-Z]{2})?\/\d{7})(v\d+)? (without any "arXiv:" prefix)
Usage notes	Prior to April 2007, the identifiers included a classification, an optional two-letter subdivision, and a 7-digit YYMMNNN year, month, and sequence number of submission in that category. E.g. gr-qc/0610068 or math.GT/0309136. After April 2007, the format was changed to a YYMM.NNNN, from 2015 an additional digit was added making the format YYMM.NNNNN
Example	A catalogue of multiplicity among bright stellar systems (Q14558831) → 0806.2878 Circadian patterns of Wikipedia editorial activity: a demographic analysis (Q21089907) → 1109.1746
Source	http://arxiv.org/abs/
Formatter URL	http://arxiv.org/abs/$1
Tracking: usage	Category:Pages using Wikidata property P818 (Q55928245)
Related to country	United States of America (Q30) (See 762 others)
See also	arXiv classification (P820), arXiv author ID (P4594), ChemRxiv ID (P9262), BioRxiv ID (P3951), Rxivist preprint ID (P6661), ORKG ID (P10897)
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 Database reports/Constraint violations/P818 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 398,248 Main statement 398,165 out of 1,711,689 (23% complete) >99.9% of uses Qualifier 5 <0.1% of uses Reference 78 <0.1% of uses
Search for values

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

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/P818#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/P818#Unique value, SPARQL (every item), SPARQL (by value)

Format “(\d{4}.\d{4,5}|[a-z\-]+(\.[A-Z]{2})?/\d{7})(v\d+)?”: value must be formatted using this pattern (PCRE syntax). (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/P818#Format, 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/P818#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/P818#Scope, SPARQL

This property is being used by: en:Template:Cite Q ilo:Plantilia:Cite Q ja:Template:Cite Q hi:साँचा:सन्दर्भ विकिडाटा sl:Predloga:Navedi Q nn:Mal:Kjelde på Wikidata cy:Nodyn:Cite Q d:Template:Cite Q da:Skabelon:Cite Q v:en:Template:Cite Q tr:Şablon:Q kaynağı Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)