OpenAI CEO Sam Altman is promoting cryptocurrency project Worldcoin after reports that the company is looking to raise $50 million in funding, Reuters and News.ro reported.

Worldcoin says it aims to create a global identity and financial network.

More than 2.6 million people have signed up to have their irises scanned using Worldcoin’s “blind” devices in exchange for a digital ID and free cryptocurrency.

Altman appeared at a virtual Q&A session hosted by fintech investment bank FT Partners on Thursday, a week after The Block reported that Tools For Humanity, the company behind Worldcoin, was looking to raise $50 million dollars from investors.

According to The Block, the company is raising funds by selling the project’s crypto tokens at a discounted price.

“In a world with a lot of artificial intelligence, knowing who is human is becoming more and more important. It was believed, and is, that as artificial intelligence becomes an increasingly important part of our lives (…), the ability to identify unique people will become increasingly important,” Altman said on Thursday.

A representative for Worldcoin did not immediately respond to a request for comment on the information published by The Block.

The firm previously raised $115 million in a Series C funding round led by Blockchain Capital along with a16z crypto and Bain Capital Crypto.

Various regulators, including those in the UK and Germany, said they were looking into Worldcoin after it launched in July.