A SECRET WEAPON FOR BITCOIN

A blockchain is often a dispersed public ledger ??or online electronic database ??that contains a record of many of the transactions with a System.가???�반?�인 채굴 ?�???��?�??�펴보겠?�니?? �??�형??비트코인 채굴 ?�드?�어???�단?�이 ?�습?�다.?�호�??�전?�게 보�??????�는 짧�? 지