[1] People’s Daily Online. Xi stresses development, application of blockchain technology. 2019. http://politics.people.com.cn/GB/n1/2019/1026/c1001-31421642.html. [2020-02-03]. (In Chinese). http://politics.people.com.cn/GB/n1/2019/1026/c1001-31421642.html
[2] Cyberspace Administration of China. Notice of blockchain information service management system appliancetion. 2019. http://www.cac.gov.cn/2019-01/28/c_1124053347.htm. [2020-02-12]. (In Chinese). http://www.cac.gov.cn/2019-01/28/c_1124053347.htm
[3] People’s Daily Online. China embraces blockchain as next frontier for digital future. 2019. http://opinion.people.com.cn/GB/n1/2019/1104/c1003-31434810.html. [2020-02-03]. (In Chinese). http://opinion.people.com.cn/GB/n1/2019/1104/c1003-31434810.html
[4] Zhang J. Blockchain: defining the future of finance and economics. Beijing: China Machine Press, 2016. (In Chinese). 
[5] Li ZR, Li Q, Zhang C, Cheng ZH. Virus database chain: league blockchain system of infectious diseases data. Comput Appl Softw 2019;36(9):21 − 32. http://dx.doi.org/10.3969/j.issn.1000-386x.2019.09.005 (In Chinese). CrossRef
[6] Gao SYJ, Lu YQ, Wang SL. The application of blockchain technology in whole-process vaccine traceability system. Chin J Health Inform Manage 2019;16(6):745 − 8. http://dx.doi.org/10.3969/j.issn.1672-5166.2019.06.021 (In Chinese). CrossRef
[7] Lee HA, Kung HH, Udayasankaran JG, Kijsanayotin B, Marcelo AB, Chao L, et al. An architecture and management platform for blockchain-based personal health record exchange: development and usability study. J Med Internet Res 2020;22(6):e16748. http://dx.doi.org/10.2196/16748CrossRef
[8] Yao ZJ, Ge JG. A summary of the theory and application of blockchain. E-sci Technol Appl 2017;8(2):3 − 17. http://dx.doi.org/10.11871/j.issn.1674-9480.2017.02.001 (In Chinese). CrossRef
[9] Li H. Application of blockchain 2.0 technology in the points exchange. Financ Comput China 2018(2):68 − 71. http://dx.doi.org/10.3969/j.issn.1001-0734.2018.02.010 (In Chinese). CrossRef
[10] Zhu Y, Gan GH, Deng D, Ji FF, Chen AP. Security architecture and key technologies of blockchain. J Inf Secur Res, 2016;2(12):1090 − 7. http://d.wanfangdata.com.cn/periodical/xxaqyj201612004. (In Chinese). http://d.wanfangdata.com.cn/periodical/xxaqyj201612004