Bitcoin's mining difficulty has jumped by 1.74% after falling for three consecutive time periods. The change is reflected in data published Thursday by BTC.com, which tracks network mining difficulty and posts an update as adjustments take place roughly every two weeks. Zack Voell, an analyst at mining firm Braiins, said that it isn't unusual to see a slight uptick like this after more significant drops. "Difficulty is still significantly lower than a few months ago, and lots of hash rate has been pushed offline from declining profitability, summer temperatures, and some lingering site construction delays," he told ... (full story)