Aurum is a digital currency designed to be private and secure; fast, inexpensive, and easy to use. It is suitable for use by governments and other trusted institutions. Aurum is not blockchain based.
Click for pdf
Click for Professor Adleman’s recent (May 2018) Caltech talk on Bitcoin, Blockchain, and Aurum (about 50 minutes),
Note: The Aurum prototype is not currently available for download