Dohrnii Foundation

The Dohrnii Foundation (German: Dohrnii Stiftung) was a Swiss foundation established in Zug, Switzerland, in 2021 by cryptocurrency investor Dadvan Yousuf to develop a blockchain-based financial education platform named after Turritopsis dohrnii, a species of jellyfish known for its ability to revert to an earlier stage of its life cycle. The foundation issued the DHN token to support its planned educational ecosystem, which included a learn-to-earn platform and marketplace.

In March 2025, the price of DHN increased by more than 6,700,000%, rising from approximately $0.007 to an all-time high of about $47 and reaching a fully diluted market capitalization of $15 billion. As of June 2026, DHN was the largest education-focused cryptocurrency token by market capitalization according to CoinMarketCap's Education category.

Following enforcement proceedings by the Swiss Financial Market Supervisory Authority (FINMA) in 2023, the DHN token was classified as a security under Swiss financial market law, in what has been described as the first publicly known case in Europe involving a cryptocurrency token treated as an unregistered security.