Worldcoin launched publicly in July 2023, co-founded by OpenAI’s Sam Altman and Alex Blania and built by the company Tools for Humanity. Its premise grew out of the generative-AI era: as AI makes it trivial to spin up bots and fake humans online, Worldcoin set out to prove that a given user is a unique, real person - what it calls “proof of personhood” - without revealing who they are.
The mechanism is a custom hardware device called the Orb, a polished sphere that images a person’s iris. Worldcoin argues that iris biometrics are one of the few ways to guarantee uniqueness at global scale, since they let the system check that each person verifies only once. After scanning, the user receives a World ID, a credential that uses zero-knowledge cryptography so they can later prove “I am a verified unique human” to apps and services without exposing their identity or being tracked across sites. Early verifiers also received units of the project’s Worldcoin token.
The project is unusually ambitious and unusually contested. It addresses a real problem - Worldcoin notes that more than half the global population lacks verifiable legal identification - and proposes financial and governance uses from bot-resistant social networks to fair distribution of resources. But the idea of a private company collecting iris scans from millions of people, often in lower-income countries in exchange for tokens, drew immediate scrutiny.
Data-protection regulators responded quickly. Authorities in Kenya, Spain, and elsewhere ordered Worldcoin to suspend iris collection over consent and biometric-data concerns, making the Orb a flashpoint in the debate over who should be allowed to build and own a global biometric identity layer.