SoRCS: A scalable blockchain model with separation of role, chain and storage

The industrial use of blockchain technology is becoming more widespread, the scalability of blockchain is still one of the primary challenges in large-scale practical applications. Separation schemes are being introduced by many blockchain projects to solve their scalability problems. In this paper, we propose a comprehensive separation scheme SoRCS, which separates the node role, the chain, and the data storage. It makes full use of the resources of each node, reduces the load on the nodes, and improves the degree of decentralization. Ordering of verified transactions, execution of ordered transactions, confirmation of ordering and execution blocks run concurrently within different sub-networks to improve blockchain performance. Based on the results of the block consensus, we provide a three-phase response: documented, executed, and confirmed.

Based on the SoRCS architecture, we also implement a prototype system that consists of 1200 nodes to evaluate our separation schemes. Its peak throughput is 14.7 Ktps and its latency is around 0.5 s. We use the three-phase response time to avoid the issue of higher latency, and the first response time is around 0.15 s.