U.S. Patent 11012229 was awarded on May 18, 2021 and is entitled “Method for preventing short-term bifurcation and double-spend attack on block chain network.” The first named inventor is Wenbin Cheng of Shenzhen, . The abstract contains an overview of the patent disclosure:

The present invention discloses a method for preventing short-term bifurcation and double-spend attack on a block chain network. The method includes the following steps: adding one CA certificate issuance and updating center to the blockchain network; transforming a block data structure and adding a CA certificate-based signature and a public key field; adding certificate effective verification of the signature and the public key to a consensus algorithm of a blockchain network node; improving the consensus algorithm; adding risk identification of a short-term bifurcation malicious double-spending attack to the improved consensus algorithm. The present invention makes minor changes to an original chain and is easy to implement. Because the method only adds the CA center and modifies and adds the necessary consensus algorithms, the method may effectively reduce the possibility of short-term bifurcation double-spending attack. A real-name system CA certificate provides an effective real-name system evidence for subsequently judicial investigation afterwards. Link to Full Patent

This blockchain patent was originally filed on March 13, 2019  as U.S. Patent Application 17/251799 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11012229. The primary examiner was Badri Narayanan Champakesan.

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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