Property talk:P2977

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LBT person ID
identifier of a person, on Lord Byron and his Times website

Associated item	Lord Byron and his Times (Q25935022)
Applicable "stated in" value	Lord Byron and his Times (Q25935022)
Data type	External identifier
Domain	human (Q5) (note: this should be moved to the property statements)
Allowed values	[A-Z][a-z][A-Z][A-Za-z]+\d+
Example	Thomas Moore (Q315346) → ThMoore1852 François de La Rochefoucauld (Q273708) → FrLaRoc1680
Source	http://www.lordbyron.org/
Formatter URL	http://www.lordbyron.org/persRec.php?&selectPerson=$1
Tracking: usage	Category:Pages using Wikidata property P2977 (Q56417986)
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/P2977 Database reports/Humans with missing claims/P2977 Database reports/Constraint violations/P2977 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 10,302 Main statement 8,648 out of 12,240 (71% complete) 83.9% of uses Qualifier 2 <0.1% of uses Reference 1,652 16% of uses
Search for values

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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/P2977#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/P2977#Unique value, SPARQL (every item), SPARQL (by value)

Item “instance of (P31): human (Q5), fictional human (Q15632617), human whose existence is disputed (Q21070568)”: Items with this property should also have “instance of (P31): human (Q5), fictional human (Q15632617), human whose existence is disputed (Q21070568)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2977#Item P31, hourly updated report, search

Format “[A-Z][A-Za-zí]*(\d{0,3}|(1\d|20)\d{2})[a-zA-Z]?”: 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/P2977#Format, SPARQL

Format “[A-Z][A-Za-zí\d]*”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2977#Format, 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/P2977#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/P2977#Scope, SPARQL

Check correspondence between the year in the identifier and the year of death
Check when the ID contain the year of death (Help)
Violations query: SELECT ?item { ?item wdt:P2977 ?value. ?item wdt:P570 ?died. BIND (YEAR(?died) AS ?diedYear). BIND (STRLEN(?value) AS ?stringlength). BIND (SUBSTR(?value, ?stringlength - 3, 4) AS ?substr). FILTER (?diedYear != ?substr) FILTER REGEX(STR(?value), "^([A-Z][A-Za-zí]+((1\\d|20)\\d{2}))$") }
List of this constraint violations: Database reports/Complex constraint violations/P2977#Check correspondence between the year in the identifier and the year of death