DSA is a decentralized blockchain system based on conditional capacity proofs combined with distributed data storage. DSA adopts a flexible wedge-in approach, supporting main-side chain structures/federation structures. It ensures the secure and stable operation of the main chain while easily accommodating high-volume data and high-concurrency business scenarios. DSA can also be run on side chains with flexible consensus mechanisms such as POW, POS, and others. Additionally, DSA is compatible with other mainstream blockchain architectures, including ETH and EOS, for wedge-in integration and cross-chain interactions.