Cumulus Encrypted Storage System (CESS) is a decentralized cloud storage network and content delivery network (CDN) optimized for processing high-frequency dynamic data while safeguarding users' data ownership, privacy, and asset protection. With its innovative technologies and architecture design, CESS offers a full-stack decentralized storage solution for large-scale enterprises and commercial-grade applications. Our mission is to provide a completely trustless and highly scalable infrastructure for Web3 development. CESS has created an uncompromisingly secure, user-friendly, architecturally robust and diversified ecosystem.