ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,732,293, issued on Sept. 8, was assigned to Hoptroff London Ltd. (London).

"Systems and methods for watermarking time, place and identity of events" was invented by Richard Hoptroff (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides systems and methods for proving an event. The system comprises a network of one or more beacon nodes and each beacon node is configured to: receive a request over the network for proving a time and location for an event, and the request comprises event data generated by a requesting entity; create a timestamp for the event using a clock of the beacon node, wherein the clock is synchronized...