U.S. banking giant Capital One is working on using blockchain technology to usher in more convenient and secure user authentication methods for instances such as banking security. In a continuation of a patent application submitted to the U.S. Patent and Trademark Office (USPTO) back in June 2017, Capital One sets out a blockchain system that will receive, store and retrieve encrypted user authentication data, according to a filing released Thursday. The proposed idea is described as “a distributed, non-reputable record of authentication interactions” that allows users to authenticate themselves across multiple platforms, but limits how much personal information is shared between them. In effect, the method retrieves identification data on a user when they commence the authentication process (assuming the user has a profile set up). The system will authenticate or reject the user based on the received authentication information, but the user data itself is kept securely on the blockchain.