????? ????????? ??? ???? ??? ?????????; ????????? ???? ??????? ??????? ??? ???????? ??? ?? ??? ????? ?????????? ? ?????????.Cryptocurrencies use various timestamping techniques to "prove" the validity of transactions added for the blockchain ledger with no require to get a reliable 3rd party.?,?? ?????????, ?????????? ???? ???… ?????????? ??? ???… Read More