ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,423,684, issued on Sept. 23, was assigned to BLOCKDAEMON APS (Aarhus, Denmark).
"Digital signature generation using a cold wallet" was invented by Jakob Illeborg Pagter (Aarhus V, Denmark) and Thomas Pelle Jakobsen (Marslet, Denmark).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a system for providing a digital signature are disclosed. A private signature key is distributed among two or more nodes of a cold wallet. Each node of the cold wallet generates a pre-signature, based on its share(s) of the private signature key, and transmits the pre-signature to one of two or more pre-signature nodes. A signing application requests a signature an...