Copyright and Provenance: Some Practical Problems

Copyright clearance is an increasingly complex and expensi ve impediment to the digitization and reuse of information. Clearing copyright issues in a reliable and cost-effective manner for works created in the last 100 years can involve establishing complex provena nce chains for the works, their copyrights, and their licenses. This paper gives an overview of some of th e practical provenance-related issues and challenges in clearing copyrights at large scale, and di scusses efforts to more efficiently gather and share information and its copyright provenance.