To mitigate the
loss, some PoW protocols in which works could have some
side-applications have been designed. For example, Primecoin
searches for special prime number chains which can be
used for mathematical research.
总结自论文：
An Overview of Blockchain Technology:
Architecture, Consensus, and Future Trends
BY
Zibin Zheng, Shaoan Xie, Hongning Dai, Xiangping Chen, and Huaimin Wang
