Network3 is a Depin platform focused on privacy and efficient distributed computing, providing services for distributed AI, including data transfer, arithmetic sharing, and security. It integrates advanced technologies like certificateless signcryption (CLSC), data verification, anti-tracking measures, and a decentralized federated learning framework. Network3 already has a successful VPN product with millions of users and plans to expand into bandwidth sharing and distributed arithmetic sharing. Its economic model rewards participants based on their contributions to the system.