High-Density Rosetta (HD-Rosetta) is a permanent data storage device which contains engraved microscopic information on a small 3-inch (7.6 cm) nickel plate.
Norsam Technologies has made HD-Rosetta extremely durable, compared to most archival data devices.
De Beers has currently used HD-Rosetta technology to provide clear marking on diamonds and other gemstones.
At the point of contact, atoms from the nickel surface of HD-Rosetta are knocked off the plate; essentially, an etch is made.
Primarily focusing on archiving information, HD-Rosetta is thought as a method for preserving history.
The Times Capsule, along with an HD-Rosetta disc, currently resides in the American Museum of Natural History.
The Long Now Foundation has entered languages, collections of literature, known cures for diseases, and blueprints for technology on the Rosetta Disc.
Founded on 5 October 1995, Norsam Technologies was first developed by John Bishop and two Los Alamos researchers, Roger Stutz and Dr. Bruce Lamartine.