We are thrilled to partner with Changelly to provide an exceptional trading experience: anytime, anywhere - in a few simple taps! For example, if users A and B are disagreeing on whether an incoming transaction is valid, a hard fork could make the transaction valid to users A and B, https://bookmarkbells.com/story17108295/5-%D0%BE%D1%81%D0%BD%D0%BE%D0%B2%D0%BD%D1%8B%D1%85-%D1%8D%D0%BB%D0%B5%D0%BC%D0%B5%D0%BD%D1%82%D0%BE%D0%B2-%D0%B4%D0%BB%D1%8F-dollar-to-btc-exchange-rate