A SECRET WEAPON FOR COPYRIGHT

A blockchain is a distributed community ledger ??or on the internet digital database ??that contains a history of all of the transactions with a platform.가???�반?�인 채굴 ?�???��?�??�펴보겠?�니?? �??�형??비트코인 채굴 ?�드?�어???�단?�이 ?�습?�다.비트코인?� ?�계?�인 공동체�? 만