Eth difficulty Errors can occur, so your investment decision shouldn't be based on the results of this calculator. . The more miners are mining Ethereum the more difficult it is to find the block to be rewarded. What is Ethereum PoW difficulty? Ethereum PoW difficulty (or network difficulty) is a key value for every cryptocurrency. ETH is keep moving down as BTC ; the buttom is not clean and clear, the descending wedge should break up but during bearish time could break down as well, so I would stay on a neutral postion at the moment and Long or Short depending on how and where price will move, I have outlined few spot on the chart that i am loking at the moment. The difficulty time bomb is a process that makes Ethereum mining more and more difficult. The difficulty of ETH mining rose to 3,719 terahashes after the coin was being traded for over $500. Ethereum’s “Difficulty Bomb” refers to the increasing difficulty level of puzzles in the mining algorithm used to reward miners with ether on its blockchain. Web.