This document summarizes 0chain, which provides blockchain-powered enterprise data storage. It enables high data security, better auditability, and lower costs through immutable recording of data writes and reads on the blockchain. The 0chain platform offers SaaS, IaaS, and on-premises/hybrid data storage and security options to protect enterprise applications like CRM, HCM, ERP and IoT from internal and external attacks through decentralized consensus of encrypted and fragmented data records.