TY - Frontiers of Data and Computing A1 - Zhang Man,Li Hongtao,Dong Kejun,Yan Zhiwei T1 - Cyberspace Identification Service Based on Blockchain Y1 - 2020-10-20 JF - Frontiers of Data and Domputing JO - Frontiers of Data and Computing SP - 52 EP - 64 VL - 2 IS - 5 UR - http://www.jfdc.cnic.cn N1 - 10.11871/jfdc.issn.2096-742X.2020.05.006 ER -