Sam Altman’s cryptocurrency project, the Worldcoin Foundation, is rolling out its services globally even as the company cofounded by the OpenAI chief faces regulatory pushback in the US.

The Berlin and San Francisco-based start-up announced on Monday that its technology, including its Worldcoin token—a cryptocurrency traceable on the blockchain that requires users to first prove their identity—will be available in 35 cities across 20 countries.

Central to the effort is an eye-scanning physical “orb,” which Worldcoin’s founders say is necessary for a future in which distinguishing between humans and robots becomes increasingly challenging due to a surge in artificial intelligence technology. Once users have proved they are not robots, they can be issued one of the company’s tokens.