U.S. Patent 10985919 was awarded to Alipay (Hangzhou) Information Technology Co., Ltd. on April 20, 2021 and is entitled “Performing map iterations in a blockchain-based system.” The first named inventor is Benquan Yu of Hangzhou, . The abstract contains an overview of the patent disclosure:

Computer-implemented methods, systems, and apparatus are described for storing keys of multiple key-value pairs by a network node of a blockchain network. One method includes maintaining data representing a forest that stores multiple keys of the multiple key-value pairs that are stored in a map. The forest includes multiple trees, each tree includes respective storage nodes, and each storage node stores a subset of the multiple keys. The network node receives a request to add a key of a key-value pair into the forest. A first hash value of the key is computed using a first hash function. One of the multiple trees to store the key is determined based on the first hash value. The network node determines a target storage node of the one of the multiple trees to store the key, and stores the key in the target storage node. Link to Full Patent

This blockchain patent was originally filed on October 30, 2020  as U.S. Patent Application 17/084949 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10985919. The primary examiner was Tri M Tran.

Alipay (Hangzhou) Information Technology Co., Ltd., who is the original assignee of this patent, has at least 38 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 1 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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