Property talk:P13568

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‎Substack handle
user handle on Substack; do not include the @ symbol

Represents	Substack (Q63435709)
Applicable "stated in" value	Substack (Q63435709)
Has quality	case insensitive (Q55121183), human-readable identifier (Q99601935)
Data type	External identifier
Allowed values	[A-Za-z\d]{4,32}
Usage notes	The handle's URL will be in the format substack.com/@handle. Do not include @.
Example	Selvaggia Lucarelli (Q3954946) → selvaggialucarelli Gergely Orosz (Q115090522) → pragmaticengineer Noah Smith (Q116233399) → noahpinion Heather Cox Richardson (Q24321994) → heathercoxrichardson
Formatter URL	https://substack.com/@$1
See also	Substack numeric user ID (P12007), Steady publication ID (P14654)
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 Database reports/Constraint violations/P13568 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 956 Main statement 922 96.4% of uses Qualifier 4 0.4% of uses Reference 30 3.1% 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/P13568#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/P13568#Scope, SPARQL

Conflicts with “website account on (P553): Substack (Q63435709)”: this property must not be used with the listed properties and values. (Help)

List of violations of this constraint: Database reports/Constraint violations/P13568#Conflicts with P553, hourly updated report, search, SPARQL

Required qualifier “Substack numeric user ID (P12007)”: this property should be used with the listed qualifier. (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/P13568#mandatory qualifier, SPARQL

Format “[A-Za-z\d]{4,32}”: 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/P13568#Format, SPARQL

This property is being used by:

• en:Template:Substack handle

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Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)