A Cascade Structure for Blockchain

Blockchain as a novel technology which consists of peer-to-peer network, distributed consensus, cryptography and other fundamental knowledge. Blockchain can help people build trust among untrusted people, which will help people establish new application models in multiple areas. But there are several legacy problems which obstruct the deployment and development of blockchain, the biggest problem is blockchain performance that blockchain cannot process the transactions as much as the centralized server per second. We propose a cascade structure for blockchain, which can accelerate the block generation, enlarge the capacity of the block, reduce the risk of fork and increase the difficulty to launch the 51% attack.