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Harvard released metadata for 12Millions library book into the public domain

Harvard University has today put into the public domain (CC0) full bibliographic information about virtually all the 12M works in its 73 libraries. The metadata, in the standard MARC21 format, is available for bulk download from Harvard. The University also provided the data to the Digital Public Library of America’s prototype platform for programmatic access via an API.

Official press release

Harvard’s Open Metadata policy

API details