??????????? ??? ????? ???????, ??? ????? ?????? ??? ???????? ??. ???? ???????? ??? ?? ?????? ?? ???? ???? ?? ????????? ??? ?? ???? ???? ?? ?????????.Cryptocurrencies use several timestamping strategies to "confirm" the validity of transactions extra to your blockchain ledger with no have to have for any trustworthy third party.?????? ??? ?? ?????