Property talk:P2450

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Encyclopædia Britannica contributor ID
identifier for a contributor to the 'Encyclopædia Britannica'

Applicable "stated in" value	Encyclopædia Britannica Online (Q5375741)
Data type	External identifier
Allowed values	[1-9]\d*
Example	Kusum Nair (Q6448209) → 2105 John Holmes Jellett (Q15967902) → 1475 Michael Aaron Dennis (Q16208061) → 4346
Source	https://www.britannica.com/
Formatter URL	https://www.britannica.com/contributor/wd/$1
Tracking: usage	Category:Pages using Wikidata property P2450 (Q56055994)
Related to country	United Kingdom (Q145) (See 325 others)
See also	Encyclopædia Britannica Online ID (P1417)
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) Mix'n'match (Report) Database reports/Humans with missing claims/P2450 Database reports/Constraint violations/P2450 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 3,360 Main statement 3,348 99.6% of uses Qualifier 3 <0.1% of uses Reference 9 0.3% of uses
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Format “[1-9]\d*”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2450#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/P2450#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2450#Single value, hourly updated report, SPARQL

Item “instance of (P31): human (Q5)”: Items with this property should also have “instance of (P31): human (Q5)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2450#Item P31, hourly updated report, search, SPARQL

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2450#Scope, hourly updated report, 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/P2450#Entity types