Sun, Wei
Jin, Haitao
Jin, Fengjun
Kong, Lingming
Peng, Yihao
Dai, Zhengjun
Article History
Received: 25 January 2022
Accepted: 16 June 2022
First Online: 23 June 2022
Competing interests
: The authors declare the following competing interests: H.J. declares financial holdings of less than US$500 of Bitcoin. L.K. and Y.P. are employed by BTC.com. The other authors declare no competing interests.