DSA is a decentralized blockchain system that combines conditional capacity proof with distributed data storage. DSA adopts a flexible concatenation approach, supporting the main side chain structure/federated structure. While ensuring the safe and stable operation of the main chain, it easily supports large data volume and high concurrency business scenarios, and can run DSA on the side chain with flexible consensus mechanisms (such as POW, POS, etc.). At the same time, DSA is also compatible with the integration and cross chain interaction of other mainstream blockchain architectures such as ETH and EOS....