US Patent Issued to Jingdong Technology Information Technology, Jingdong Technology Holding on April 15 for "Transaction tracing method and apparatus based on blockchain" (Chinese Inventor)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,277,557, issued on April 15, was assigned to Jingdong Technology Information Technology Co. Ltd. (Beijing) and Jingdong Technology Holding Co. Ltd. (Beijing).

"Transaction tracing method and apparatus based on blockchain" was invented by Xixia Gou (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and an apparatus for tracing a transaction based on a blockchain are provided. The method may include: invoking a smart contract between an upstream node and an intermediate node; encrypting, by using a private key of the intermediate node, transaction details between the upstream node and the intermediate node to generate and write upstream trans...