A Hybrid Blockchain System Based on Parallel Distributed Architecture for Central Bank Digital Currency
Cao Yanghua, Zhang Jinnan, Yuan Xueguang, Guo Teng, Lu Changqi, Gang Chen, Kang Jian, Yan Xin, Zhang Xia, 黄永清 · Frontiers in artificial intelligence and applications · 2019
The Central Bank Digital Currency (CBDC) is the foundation of the future digital economy and society. However, most of the common blockchain currency only provide a creative technical architecture ignoring social effects or sacrificing performance in exchange for decentralization. Here, we proposed a hybrid blockchain system based on parallel distributed architecture by combining account and Unspent Transaction Output (UTXO) for center bank digital currency. Social effects are considered in this system and the centralized management is achieved with good performance. In experiment, the transferring speed of the proposed hybrid system is 80% faster than the UTXO method. Furthermore, a parallel distributed architecture is designed to optimize this system. Results show that the processing speed is 38.1% faster than the traditional blockchain account method and 17.8% faster than the UTXO method.