He founded the Web3 Foundation, a nonprofit organization focusing on decentralised internet infrastructure and technology, starting with the Polkadot network.[1] In comparison to Ethereum's proof of work mechanism, Polkadot relies on proof of stake mechanism and allows developers to create their own blockchain that can talk to other ledgers, forming a system of parachains. Developers can decide what kind of transaction fees to charge and how fast to confirm blocks of transactions across the digital ledgers. In 2019, he founded Kusama, an early stage experimental development environment for Polkadot.[citation needed]