According to reports, at 00:05 (UTC) on Tuesday, the adjustment of Bitcoin mining difficulty increased by 4.5% on block 699551. Compared with the 13% increase in mining difficulty two weeks ago, the recent 4.5% increase in mining difficulty is not worth mentioning. According to miners and mining pool operators, the recent bull market in the most prominent cryptocurrency offset the increasing costs and keeps Bitcoin mining highly profitable. Azam Roslan, the senior sales associate at Wattum, a New York miner hosting service provider, said that the slowdown in growth might be due to the limited global hosting.