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Deep Backfile project page

In the Penn Libraries Deep Backfile project, dozens of people who work at the Penn Libraries are researching copyrights of serials in our collection, so we can identify ones that are in the public domain and can be shared freely with the world. We're publishing our findings on the Web, through web pages and JSON structured data files linked with Wikidata.

Basic information

Project documentation and training materials

Copyright research

Wikidata editing

Copyright JSON files

Presentations and media coverage


Thank you all!

The Deep Backfile Project is an initiative of the Penn Libraries and The Online Books Page. OBP copyrights and licenses.