ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,511,648, issued on Dec. 30, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Privacy preserving transaction system" was invented by Chander Govindarajan (Bangalore, India) and Pralhad Dinesh Deshpande (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example operation may include one or more of connecting, by a consortium server, to a blockchain network configured to store digital assets of senders and recipients of funds, receiving from a sender, by the consortium server, a message containing a payment note value and a recipient data, the message is serially encrypted by a plurality of routers, retrieving, by the consor...