???? ?????? ?? ??????? ?????? ?? ??? ??? ??? ??????? ????? ??? ??????????:???????, ?????? ???????????? ??? ???? ?????? ????? ??? ????? ????????? ??????!??? ??? ?? ??? ????? ???? ??? ????? ?????? ?? ???????? ???? ???????? ????? ? ????????? ??? “????? ???????????????”.Retrieved 17 January 2017. The technological innovation at the center of bitcoi