A blockchain is actually a distributed general public ledger ??or on line electronic database ??which contains a file of every one of the transactions on the 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?? ?�력 비용??막�??�기 ?�문??�?고려 ?�야 https://boba110rja1.activoblog.com/profile