Library of Congress Control Number

E1358

bibliographic identifier identifier system library control number

The Library of Congress Control Number is a unique identification system used by the Library of Congress to catalog and organize bibliographic records for books and other materials.

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AI illustration

All labels observed (6)

Label	Occurrences
LCCN	1
Library of Congress Authorities	1
Library of Congress Control Number canonical	1
Library of Congress Control Number system	1
Library of Congress bibliographic record	1
Library of Congress control number (LCCN)	1

How this entity was disambiguated

This entity first appeared as the object of triple T10900 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Library of Congress Control Number
Context triple: [Library of Congress, hasIdentifierSystem, Library of Congress Control Number]

A. Library of Congress
The Library of Congress is the national library of the United States and one of the world’s largest and most comprehensive research libraries, serving as the research arm of the U.S. Congress.
B. National Archives and Records Administration
The National Archives and Records Administration (NARA) is an independent U.S. federal agency responsible for preserving and providing access to the nation’s government records and historical documents.
C. universal digital library
The universal digital library is a conceptual global repository aiming to provide seamless, searchable access to all recorded human knowledge in digital form.
D. MIT Libraries
MIT Libraries is the academic library system of the Massachusetts Institute of Technology, supporting research, teaching, and learning across science, engineering, and related fields.
E. Harvard Library
Harvard Library is the extensive academic library system of Harvard University, recognized as one of the largest and most comprehensive research library networks in the world.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Library of Congress Control Number
Target entity description: The Library of Congress Control Number is a unique identification system used by the Library of Congress to catalog and organize bibliographic records for books and other materials.

A. Library of Congress
The Library of Congress is the national library of the United States and one of the world’s largest and most comprehensive research libraries, serving as the research arm of the U.S. Congress.
B. National Archives and Records Administration
The National Archives and Records Administration (NARA) is an independent U.S. federal agency responsible for preserving and providing access to the nation’s government records and historical documents.
C. universal digital library
The universal digital library is a conceptual global repository aiming to provide seamless, searchable access to all recorded human knowledge in digital form.
D. MIT Libraries
MIT Libraries is the academic library system of the Massachusetts Institute of Technology, supporting research, teaching, and learning across science, engineering, and related fields.
E. Harvard Library
Harvard Library is the extensive academic library system of Harvard University, recognized as one of the largest and most comprehensive research library networks in the world.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	bibliographic identifier ⓘ identifier system ⓘ library control number ⓘ
abbreviation	LCCN ⓘ
administeredBy	Library of Congress Cataloging Directorate ⓘ linked to: Library of Congress
appliesTo	audio recordings ⓘ books ⓘ maps ⓘ motion pictures ⓘ music scores ⓘ other library materials ⓘ serials ⓘ
assignedBy	Library of Congress catalogers ⓘ
country	United States ⓘ linked to: United States of America
dataFormat	numeric string ⓘ
differentFrom	ISBN ⓘ ISSN ⓘ Library of Congress Classification ⓘ
formatAfter	4-digit year plus serial number ⓘ
formatBefore	2-digit year plus serial number ⓘ
hasAlternativeName	LC control number ⓘ Library of Congress card number ⓘ
hasCatalogingCode	LCCN ⓘ
hasLanguage	English ⓘ
hasOnlineService	LCCN Permalink ⓘ
hasPart	serial number portion ⓘ year portion ⓘ
hasPolicy	Library of Congress LCCN assignment guidelines ⓘ
identifierFor	Library of Congress authority record ⓘ Library of Congress bibliographic record ⓘ linked to: Library of Congress Control Number
introduced	1898 ⓘ
maintainedBy	Library of Congress ⓘ
operator	Library of Congress ⓘ
relatedTo	International Standard Book Number ⓘ linked to: International Organization for Standardization International Standard Serial Number ⓘ Library of Congress Classification ⓘ MARC standards ⓘ
scope	authority records ⓘ bibliographic records ⓘ
usedBy	Library of Congress ⓘ
usedFor	authority control ⓘ bibliographic control ⓘ cataloging ⓘ identification of bibliographic records ⓘ
usedIn	authority files ⓘ bibliographic databases ⓘ library catalogs ⓘ
usedSince	early 20th century ⓘ

How these facts were elicited

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

Library of Congress → hasIdentifierSystem → Library of Congress Control Number ⓘ

Library of Congress → maintains → Library of Congress Control Number system ⓘ

subject linked to: LOC