World ID is a privacy-centric, decentralized protocol providing global proof of personhood on the internet. Users can anonymously prove their unique identities with this digital passport. The project involves Worldcoin, a widely distributed cryptocurrency. Its signup process, involving iris scans, ensures single registration and promotes financial inclusion and universal basic income. The Orb, an optical system, captures high-definition iris scans for user verification. World ID authenticates into various applications and enables private sharing of personhood verifications, enhancing digital identity protection. Created by the Worldcoin project team, including CEO Alex Blania, Sam Altman, and Max Novendstern.

World ID is a protocol that aims to bring global proof of personhood to the internet in a privacy-centric, self-custodial, and decentralized manner. This digital passport allows users to prove they are unique and real individuals while remaining anonymous.

The project behind World ID is a substantial undertaking that envisions the creation of a widely and evenly distributed cryptocurrency, Worldcoin. The project's unique sign-up process, which involves iris scans, aims to ensure that each person can register only once. This approach is designed to foster financial inclusion and has the potential to serve as a global distribution network for universal basic income (UBI). Central to this process is the Orb, a custom optical system that captures high-definition iris scans to verify users' uniqueness.

World ID can be used to authenticate into web, mobile, and decentralized applications, and privately share your personhood verifications including phone number for ease, or biometrics for the maximum level of assurance​1​. It can also be used to sign in with Worldcoin to visit favorite websites and provide proof of personhood, ensuring your digital identity can't be stolen, misused, or lost​.