Property talk:P549

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Mathematics Genealogy Project ID
identifier for mathematicians and computer scientists at the Mathematics Genealogy Project

Description	id for mathematicians at the Mathematics Genealogy Project (Q829984)
Applicable "stated in" value	Mathematics Genealogy Project (Q829984)
Has quality	numeric identifier (Q93868746)
Data type	External identifier
Domain	person (note: this should be moved to the property statements)
Allowed values	\d{1,6}
Example	Leonhard Euler (Q7604) → 38586 Harald Cramér (Q471777) → 20611 Paul Erdős (Q173746) → 19470
Source	https://mathgenealogy.org/
Formatter URL	https://mathgenealogy.org/id.php?id=$1 https://genealogy.math.ndsu.nodak.edu/id.php?id=$1
Tracking: same	no label (Q32084904)
Tracking: differences	no label (Q32069770)
Tracking: usage	Category:Pages using Wikidata property P549 (Q31954285)
Tracking: local yes, WD no	no label (Q32069771)
See also	zbMATH author ID (P1556), MR Author ID (P4955), Academic Tree ID (P2381), AstroGen ID (P8880)
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/Constraint violations/P549 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 276,057 Main statement 263,077 out of 278,751 (94% complete) 95.3% of uses Qualifier 3 <0.1% of uses Reference 12,977 4.7% 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/P549#Single value, 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/P549#Unique value, hourly updated report, SPARQL (every item), SPARQL (by value)

Format “\d{1,6}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P549#Format, 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/P549#Item P31, hourly updated report, search, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

List of violations of this constraint: Database reports/Constraint violations/P549#Entity types, hourly updated report

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/P549#Scope, SPARQL

Label required in languages: en: Entities using this property should have labels in one of the following languages: en (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/P549#Label in 'en' language, search, SPARQL

Description required in languages: en: Entities using this property should have descriptions in one of the following languages: en (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/P549#Description in 'en' language, search, SPARQL

This property is being used by: it:Template:MathGen, it:Template:Collegamenti esterni s:ru:Шаблон:Внешние ссылки ar:قالب:ضبط استنادي en:Template:MathGenealogy fr:Modèle:MathGenealogy lv:Veidne:MathGenealogy sr:Шаблон:MathGenealogy hy:Կաղապար:MathGenealogy ur:سانچہ:MathGenealogy he:תבנית:גנאלוגיה מתמטית de:Vorlage:MathGenealogyProject sco:Template:MathGenealogy sq:Stampa:MathGenealogy hi:साँचा:MathGenealogy bh:टेम्पलेट:MathGenealogy pt:Predefinição:MathGenealogy ja:Template:MathGenealogy mk:Шаблон:Mathgenealogy, mk:Предлошка:Mathgenealogy simple:Template:MathGenealogy zh:Template:MathGenealogy af:Sjabloon:Mathgenealogy ms:Templat:MathGenealogy ka:თარგი:MathGenealogy bn:টেমপ্লেট:MathGenealogy arz:قالب:MathGenealogy si:සැකිල්ල:MathGenealogy bcl:Plantilya:MathGenealogy ckb:داڕێژە:MathGenealogy zh-min-nan:Pang-bô͘:MathGenealogy ko:틀:위키데이터 속성 추적 hu:Sablon:MathGenealogy ta:வார்ப்புரு:MathGenealogy tum:Template:MathGenealogy nan:Pang-bô͘:MathGenealogy yue:Template:MathGenealogy gv:Clowan:MathGenealogy wikt:ko:틀:위키데이터 속성 추적 lt:Šablonas:MathGenealogy incubator:Template:Wp/jje/위키데이터 속성 추적 Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

This property is being used by: he:תבנית:גנאלוגיה_מתמטית Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)