A SECRET WEAPON FOR BITCOIN

A blockchain is really a dispersed general public ledger ??or on the web electronic database ??that contains a report of every one of the transactions with a System.비트코인 채굴???�해 ?�익??�??�도 ?�습?�다 - ?�히 ?�기가 �??�?�한 지??��?�는 ?�히 그렇?�니?? ?�한 ?�익?�의 ?��??� 비�