??????????? ??? ????? ???????, ??? ????? ?????? ??? ???????? ??. ???? ???????? ??? ?? ?????? ?? ???? ???? ?? ????????? ??? ?? ???? ???? ?? ?????????.It is "an open up, dispersed ledger that will report transactions amongst two parties successfully and in a verifiable and long term way".[63] To be used for a distributed ledger, a blockchain is usu