Web3 is the vision of the next-generation internet, aiming to build a decentralized network ecosystem where users own their data sovereignty. It is based on blockchain technology, utilizing smart contracts, decentralized applications (DApps), and token economic models to enable users to truly control their digital identities, assets, and data, reducing reliance on centralized platforms.

The core features of Web3 include: decentralization (data stored on distributed networks rather than a single server), user sovereignty (users control private keys), permissionless (anyone can participate without authorization), and composability (applications can be combined and called upon). Currently, the Web3 ecosystem covers multiple areas such as DeFi (Decentralized Finance), NFT (Non-Fungible Tokens), DAO (Decentralized Autonomous Organizations), and is reshaping the way value is distributed and collaboration occurs in the digital world.