About the Virtual Catalog [Proof of Concept]: “The U.S. Copyright Card Catalog provides an index to copyright registrations and other public records pertaining to ownership of intellectual property. The catalog enables users to identify original copyright registration records and other U.S. Office records from 1870 through 1977. The information in these records typically includes: author(s), title of work, copyright registration number, and effective date of registration. These records do not include the full registration records or copies of deposited works registered with the Copyright Office. The card catalog also contains entries for transfers of ownership, generally one card for each title, assignee, and assignor…”