Blockcast is an open, decentralized content delivery network (CDN) that leverages a unique caching architecture to reduce delivery costs and enhance content quality. It aggregates capacity from a global network of caching nodes, enabling efficient content delivery, even in remote areas. By integrating multicast technology, Blockcast supports streaming, gaming, and other high-bandwidth services, allowing broadcasters, CDNs, and ISPs to expand capacity and reach. Users and operators running Blockcast nodes can earn rewards through token incentives.