Property talk:P3899

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Medium username
username of the Medium account of a person or an organization

Associated item	Medium (Q16186120)
Applicable "stated in" value	Medium (Q16186120)
Has quality	case insensitive (Q55121183)
Data type	External identifier
Corresponding template	Template:Medium.com (Q26144616)
Allowed values	[0-9A-Za-z_\.\-]{1,30}
Usage notes	do not include the "@" symbol
Example	Emmanuel Macron (Q3052772) → EmmanuelMacron Matteo Bordone (Q3852080) → MatteoBordone
Source	https://medium.com/
Formatter URL	https://medium.com/@$1
Tracking: usage	Category:Pages using Wikidata property P3899 (Q52076163)
Related to country	United States of America (Q30) (See 762 others)
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/P3899 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,343 Main statement 1,320 98.3% of uses Qualifier 8 0.6% of uses Reference 15 1.1% of uses
Search for values

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

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/P3899#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/P3899#Single value, SPARQL

Format “[0-9A-Za-z_\.\-]{1,30}”: 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/P3899#Format, SPARQL

Conflicts with “website account on (P553): Medium (Q16186120)”: this property must not be used with the listed properties and values. (Help)

List of violations of this constraint: Database reports/Constraint violations/P3899#Conflicts with P553, hourly updated report, search, 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/P3899#Item P31, search, 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/P3899#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/P3899#Scope, SPARQL

This property is being used by: n:ru:Шаблон:Оформление категории incubator:Template:Wn/tg/Ороиши гурӯҳ ja:Template:Medium link en:Template:Medium.com vi:Bản mẫu:Medium link n:eo:Ŝablono:Temkategorio 2 Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Constraints

Pattern ^https?:\/\/(www\.)?medium\.com\/@([A-Za-z0-9_\.]{1,30})/?$ will be automatically replaced to \2. Testing: TODO list

Pattern ^@([A-Za-z0-9_\.]{1,30})/?$ will be automatically replaced to \1. Testing: TODO list