ALEXANDRIA, Va., April 15 -- United States Patent no. 12,602,683, issued on April 14, was assigned to Digital Currency Institute, the People's Bank of China (Beijing).

"Methods and apparatuses for generating, verifying and storing transaction voucher, devices and system" was invented by Wei Liang (Beijing), Kefeng Xu (Beijing) and Yongchao Bian (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatuses for generating, verifying and storing a transaction voucher, devices and a system are provided. The method includes: in response to a received transaction request, chain structure data of a digital currency is acquired, the chain structure data including a first currency string (S101); and...