U.S. Patent 11025431 was awarded to MASTERCARD INTERNATIONAL INCORPORATED on June 01, 2021 and is entitled “Method and system for two factor authentication for blockchain transactions.” The first named inventor is Chandan Garg of Punjab, . The abstract contains an overview of the patent disclosure:

A method for two factor authentication for a blockchain transaction includes: storing a data pair including a public key of a first cryptographic key pair and an expected data value; receiving a transaction request including a first digital signature, one or more input addresses, one or more output addresses, and at least one transaction amount; identifying a processed transaction in a sidechain including a destination address and a transaction data value, wherein the destination address is generated using the public key of the first cryptographic key pair; performing a first authentication by validating the first digital signature using the public key of the first cryptographic key pair; performing a second authentication by validating the transaction data value using the expected data value; and transmitting the received transaction request to a plurality of other nodes in a blockchain network. Link to Full Patent

This blockchain patent was originally filed on December 31, 2018  as U.S. Patent Application 16/236718 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11025431. The primary examiner was Nelson S. Giddins.

MASTERCARD INTERNATIONAL INCORPORATED, who is the original assignee of this patent, has at least 1445 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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