Cumulus Encrypted Storage System (CESS) is dedicated to develop a new global decentralized cloud storage online data sharing platform – a network infrastructure that is transparent, efficient, and equal opportunity to all members of the global community. The CESSdata sharing protocol enables: a) data interoperability in manner of cross-platform, cross-collaboration, and cross-format, b) tracing and monitoring data trading market, and c) fair and transparent data profit rewards for network participation. CESS will adopt a phased approach to implement the above goals.