Trading Dash, Ethereum or Bitcoin forecast for tomorrow, week and month 2018, 2019 . Trade bitcoins, gold and silver. . Profit calculator (bitcoin mining profitability chart) I currently own 1k of each + about 300 eth | bitcoin mining auf windows 7 aktie privat Mining is an important tool in the crypto ecosystem because it provides “work” for people to do when they might otherwise have nothing to do. It does this by taking steps in parallel on multiple chains so that when they converge towards agreement at some point in the future there is no single chain with all the miners racing back to add their work to the block. In this way they provide consistent verification of transactions while avoiding race conditions where miners try simultaneously to add blocks that contain conflicting transactions into differing chains .