A blockchain is really a dispersed general public ledger ??or on-line digital database ??that contains a history of every one of the transactions with a System. ?�러???�유�? 로그?? ?�출 ?�세??관�??�는 ?�티 ?�싱 ?�구???�???�중 ?�는 ?�중 ?�소 ?�증???�함?�여 교환???�는 ??지�??�공?��? ?�공?�는 모든 보안 ?�구�??�전???�용?�는 것이 중요?�니?? ???�려�?많�? ?�드?�어 지�?모델?� ?�용?�기 ?�운 https://dickt110vpg3.popup-blog.com/profile