Property talk:P7028

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National Library of Luxembourg ID
identifier for authority control managed by the National Library of Luxembourg

Applicable "stated in" value	National Library of Luxembourg ID (Q71384796)
Has quality	VIAF component (Q26921380), numeric identifier (Q93868746)
Data type	External identifier
Allowed values	\d{9}
Example	Lex Roth (Q13103765) → 000035166 Linda Graf (Q13103778) → 000043062
Formatter URL	http://viaf.org/processed/BNL|$1
Related to country	Luxembourg (Q32) (See 11 others)
See also	Dictionnaire des auteurs luxembourgeois ID (P4749)
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/P7028 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 329 Main statement 325 98.8% of uses Qualifier 2 0.6% of uses Reference 2 0.6% 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/P7028#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/P7028#Unique value, SPARQL (every item), SPARQL (by value)

Format “\d{9}”: 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/P7028#Format, 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/P7028#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/P7028#Scope, SPARQL

Discussion

Change of ID

WikiProject Authority control has more than 50 participants and couldn't be pinged. Please post on the WikiProject's talk page instead. It seems that, at least from 2021 (cf. https://viaf.org/en/viaf/251043944), BNL has started passing from the present 9-digits ID to a new 16-digits ID; the new ID, as the old one, is available only in VIAF, and it contains the equivalence with the old ID in the field 010 (cf. https://viaf.org/en/processed/BNL%7C9822342494507251); however, given that presently VIAF dumps are unavailable since August 2024 (cf. https://viaf.org/en/viaf/data), the conversion might be not easy. Anyway, the old ID having fewer than 300 uses, I tend to think this property could be readapted (or deleted, if we create a new one). Opinions welcome. --Epìdosis 09:31, 26 April 2025 (UTC)