Hello to everyone

I want to understand more clearly about Shell-Core, about it's structure and what exactly it's doing in ReapChain at all
Shell-Core Structure is a new type of dual blockchain structure with doublelayered chain that a public and private blockchain are perfectly integrated. On the outer layer (Shell), a cell block is formed by ReapMiddleChain, and on the inner layer (Core), ReapChain is formed by a consensus algorithm.