A SIMPLE KEY FOR BITCOIN UNVEILED

A blockchain is usually a dispersed community ledger ??or on-line electronic database ??which contains a record of the many transactions with a platform.비트코인 채굴???�해 ?�익??�??�도 ?�습?�다 - ?�히 ?�기가 �??�?�한 지??��?�는 ?�히 그렇?�니?? ?�한 ?�익?�의 ?��??� 비트코인???�