U.S. Patent 10885581 was awarded to Advanced New Technologies Co., Ltd. on January 05, 2021 and is entitled “Data auditing method and device.” The first named inventor is Pengfei Ying of Hangzhou, . The abstract contains an overview of the patent disclosure:

A query request is forwarded to a plurality of service provider servers by a proxy server that determines a serial number based on the query request. An encrypted query result corresponding to the query request is received from each service provider server, and a copy of the encrypted query result is stored as a result to be audited in a blockchain that associated with each service provider server. An audit request is sent to at least one service provider server. The result to be audited is obtained from the blockchain corresponding to the service provider server. As a standard result, an encrypted query result is received from the service provider server. As an audit, the standard result received from the service provider server is compared with the result to be audited that obtained from the blockchain that associated with the service provider server. Link to Full Patent

This blockchain patent was originally filed on October 22, 2018  as U.S. Patent Application 16/167329 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10885581. The primary examiner was Robert R Niquette.

Advanced New Technologies Co., Ltd., who is the original assignee of this patent, has at least 1031 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 0 times by other U.S. patents according to our law firm research, and can be considered an innovative patent in the field of cryptocurrency and blockchain.

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