United States Copyright Office · parentLibrary of Congress

valid_from

undated

valid_to

null (still holds)

confidence

0.70

superseded_by

null

first seen

2026-10-27

last updated

2026-10-27

Sources

• https://www.usa.gov/federal-agencies/copyright-officesecondary · usa.gov
• http://copyright.gov/circs/circ1a.htmlsecondary · copyright.gov
• https://www.loc.gov/item/prn-19-034/librarian-of-congress-appoints-karyn-temple-register-of-copyrights/2019-03-27/secondary · loc.gov
• https://www.copyright.gov/about/secondary · copyright.gov
• https://www.wikidata.org/wiki/Q1784058secondary · wikidata.org

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