??? ??? ?? ??????? ?? ????????, ???? ????????? ???? ????-?????????? ?????? ??? ?? ???????? ???? ???????? ??? ????? ?? ???????? ??????????????? ???? ??? ???????? ??? ??? ?? ?????????.?????? ?? ????? ? ??????????? ??? ????????????? ?????????? ????After you use bitcoin to purchase some thing, it records the transaction with a blockchain, which is basi