U.S. Patent 10552641 was awarded to Alibaba Group Holding Limited on February 04, 2020 and is entitled “Verifying integrity of data stored in a consortium blockchain using a public sidechain.” The first named inventor is Zhiyuan Feng of Hangzhou, . The abstract contains an overview of the patent disclosure:

Implementations of the present specification include storing a data item in a consortium blockchain; generating a first data digest based on the stored data item; sending the first data digest to verification nodes to cryptographically signs it and stores the signed first data digest in a public blockchain; receiving a request to retrieve the stored data item; retrieving the requested data item from the consortium blockchain; generating a second data digest based on the retrieved data item; sending the second data digest to verification nodes so that each verification node signs the second data digest; receiving the signed second data digests from the plurality of verification nodes; retrieving the signed first data digests from the public blockchain; determining that the signed first data digests match the signed second data digests; and sending a response indicating the stored data item is unchanged to the request to retrieve the stored data item. Link to Full Patent

This blockchain patent was originally filed on May 23, 2019  as U.S. Patent Application 16/421357 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10552641. The primary examiner was Christopher C Harris.

Alibaba Group Holding Limited, who is the original assignee of this patent, has at least 1834 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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