U.S. Patent 10103893 was awarded to Guardtime SA on October 16, 2018 and is entitled “Blockchain-supported, fail-safe synchronization in a data authentication infrastructure.” The first named inventor is Ahto Buldas of Tallinn, . The abstract contains an overview of the patent disclosure:

A distributed hash tree-based authentication system for digital input records has more than one upper-level core node, each of which receives at least one uppermost value from aggregators. Communicating with each other about which aggregator values they have received, the nodes try to reach agreement as to which of these values should be included in duplicated current intra-node hash tree evaluations so as to form a consistent top-level value used as the basis for digital signatures associated with the digital input records. The top-level value is then entered either directly, or after combination with other top-level values over a period, into a block of a blockchain. Link to Full Patent

This blockchain patent was originally filed on March 06, 2018  as U.S. Patent Application 15/913816 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10103893. The primary examiner was William J. Goodchild.

Guardtime SA, who is the original assignee of this patent, has at least 33 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 5 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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