The new World ID 4.0 is a more scalable and powerful version of World ID that incorporates essential upgrades like key rotation (which detaches keys from identity), multi-party entropy (to ensure that every interaction is unlinkable), and finer credential controls (more ways to manage and protect information), Shorr explained. It now includes a new verification method, “Selfie Check,” that can be used in lieu of Tools for Humanity’s Orb device. “Take a selfie and ‘boom, you’re in,’” Shorr explained. He noted that it’s not as robust as the Orb, but it’s “really, really compelling for specific use cases. Not every use case today requires the gold standard of Orb assurance.” World ID also now includes agent delegation tools that essentially serve as what Shorr called “a power of attorney for your agent,” allowing it to perform actions on the user’s behalf.