ALEXANDRIA, Va., June 5 -- United States Patent no. 12,277,109, issued on April 15, was assigned to Citibank N.A. (New York).

"Systems and methods for real-time recording of transfers of self-validating digital records across cryptographically secure networks using cross-network registries" was invented by Nisha Surendran (London), Shishir Singh (Staten Island, N.Y.), Jack White (London) and Justin Karol (New York).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for novel uses and/or improvements to blockchains and blockchain technology. As one example, systems and methods are described herein for self-validating digital records that may be transferred in real-time through a cross-network r...