The Library of Congress Linked Data Service (id.loc.gov) provides interactive and machine access to the Library's authority and bibliographic metadata, along with commonly-found standards and vocabularies used and/or maintained by the Library of Congress. Each controlled vocabulary list has a resolvable URI, as does each data value within it. Ontologies for several major data element sets are also available. This includes the LCSH (Library of Congress Subject Headings), the TGM (Thesaurus for Graphic Materials), preservation vocabularies, language and country codes, or the American Folklore Society Ethnographic Thesaurus (AFS Ethnographic Thesaurus) among others.
loc.vocabularyA provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).
The local unique identifier demographicTerms is used to demonstrate the providers
available for Library of Congress Vocabulary. Some providers may use a different example, which is displayed in the table below.
A guide for curating additional providers can be found
here.
| Provider Name | Provider Code | URI |
|---|---|---|
| Library of Congress Vocabulary | loc.vocabulary |
http://id.loc.gov/vocabulary/demographicTerms |
| Bioregistry | bioregistry |
https://bioregistry.io/loc.vocabulary:demographicTerms |