Sam Altman’s project that aims to scan the irises of every single person on Earth in exchange for cryptocurrency has made its debut in the U.S., even as concerns around biometric data collection and processing remain.

Tools for Humanity, a startup co-founded by OpenAI Chief Executive Officer Sam Altman, plans to roll out thousands of eyeball-scanning Orb devices across the US, marking a major expansion for the company and its novel identification services.

Sam Altman’s controversial blockchain project, World, is launching in the U.S. – and said it intends to roll out 7,500 eye-scanning “orbs” in cities across the country by the end of the year.