MSCRC:Multi-layer Sidechain with Compressed Rootchain Blocks

With the development of blockchain technology, people are safety and privacy guaranteed to own digital assets benefited from digital economy system. Meanwhile, the problems have risen that how can we make interactions between different digital economy systems, and, more importantly, how could our assets kept safe as it claims to be. To address this problem, we present our protocol based on a trusted root chain, Ethereum for example. Organization or Government agencies with independent digital economy systems are connected in a tree-like hierarchy with smart contracts to the root chain. User assets can freely flow from root chain to any digital economy system with safety guaranteed and timely withdraw strategy. We release the burden of root chain by periodic write headers through smart contracts. A fraud proof challenge solution and security deposit strategy are presented to solve the data access problem. With this protocol, diversity of digital assets system can be built without efforts to earn trusts from public, and the connections between them are easily implemented since they are inherited from the same root chain.