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Karat is developing a new Web3 standard of authentication and authorization called W3Auth. This new standard allows users to sign in with Ethereum, host their data on Karat Network, and maintain complete ownership and control over their data.

In the web2 World, OAuth 2.0 is used in almost every application. It is an open standard protocol used for authorization and delegated access control. It allows a client application to access a user's resources on a separate web application, without the need for the user's credentials to be shared with the client application. OAuth 2.0 is widely used by web and mobile applications to access resources hosted on third-party web applications. Whenever you see a login screen that allows you to sign in through Gmail, Facebook, or Twitter, OAuth 2.0 is the standard of authentication being used.

Compared to the traditional OAuth 2.0 flow, the W3Auth flow implemented by Karat Network is completely on-chain, providing greater transparency and control over user data. While OAuth 2.0 relies on a centralized authorization server to grant access to resources on behalf of the user, the W3Auth flow utilizes decentralized identity standards and smart contracts to ensure that user data is owned and controlled by the user. This eliminates the need for a trusted third party and creates a trustless environment where users can confidently authorize access to their data. Additionally, Karat Network's approach incentivizes users to participate in the network by earning rewards for providing access to their data, creating a more collaborative and beneficial ecosystem.

The W3Auth flow involves the following steps:

Validators are eligible to request users’ data.