Library of Congress Linked Data Service
| Owner | Library of Congress |
|---|---|
| URL | id |
| Commercial | No |
Content license | Public domain |
| Written in | Python |
The LC Linked Data Service is an initiative of the Library of Congress that publishes authority data as linked data.[1] It is commonly referred to by its URI: id.loc.gov.[2]
The first offering of the LC Linked Data Service was the Library of Congress Subject Headings (LCSH) dataset, which was released in April 2009.[3]
Datasets
[edit]- Library of Congress Subject Headings (LCSH)
- Library of Congress Name Authority File (LCNAF)
- Library of Congress Classification—because LC Classification uses a different MARC format than LC Authorities, mapping LC Classification to MADS/RDF was more difficult than mapping LCSH or LCNAF.[2]
- Library of Congress Thesaurus for Graphic Materials
- Various MARC codes
- Various preservation vocabularies
The Library of Congress offers users the opportunity to create their own datasets with library application profiles (APIs). Create your own datasets
Formats
[edit]The service presents data in MADS/RDF and SKOS where appropriate, but also uses its own ontology to describe classification resources and relationships more accurately.[2] All records are available individually via content negotiation as XHTML/RDFa, RDF/XML, N-Triples, and JSON.[4]
Each vocabulary is also available to download in its entirety. Id.loc.gov does not currently provide a SPARQL endpoint.[5][6]