BITCOIN NO FURTHER A MYSTERY

Some cryptocurrencies share a blockchain, even though other cryptocurrencies function by themselves separate blockchains.간단??말해?? 채굴 ?�비???�로??비트코인??채굴?�기 ?�해 ?�별??고안??고급 ?�업?�라�?�????�습?�다.?�력 비용??막�??�기 ?�문??�?고려 ?�야 ???�항?�데, 그렇지 ?