“…It is found from the literature that there are IoT, medical, and IdM system standards and regulations available, which are proposed by international organizations, such as NIST and ISO, in [ 30 , 34 , 35 , 36 , 38 , 44 , 47 , 48 , 49 , 50 , 52 , 55 , 56 , 57 ]; however, when it comes to BC, there is a lack of national and international BC regulations and standards [ 98 ]. Additionally, there is a number of technical BC standards proposed by organizations, such as W3C, namely DID and VC [ 70 , 76 ], which are still under development and evolving, and technical reports, such as those in [ 63 , 64 , 65 , 66 , 67 , 68 , 69 , 77 ]. Table 7 shows the regulations and standards derived from the literature.…”