ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,837, issued on Nov. 4, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Secret smart operations in blockchain" was invented by Lei Yu (Sleepy Hollow, N.Y.), Qi Zhang (West Harrison, N.Y.), Petr Novotny (Mount Kisco, N.Y.) and Nitin Gaur (Round Rock, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system may enact a process including initiating an operation to transfer a secret, establishing n groups of nodes in a blockchain network, dividing a secret into n secret parts, creating n group keys, encrypting each secret part of the secret with a corresponding group key, and recording encrypted secret parts on the blockchain n...