BITCOIN FOR DUMMIES

A blockchain is really a dispersed community ledger ??or on line digital databases ??which contains a record of each of the transactions on a System.비트코인 채굴???�해 ?�익??�??�도 ?�습?�다 - ?�히 ?�기가 �??�?�한 지??��?�는 ?�히 그렇?�니?? ?�한 ?�익?�의 ?��??� 비트코인???��