Bitcoin’s mining difficulty level rose 4.68% on Sunday, hitting an all-time high, as the networks’ hashrate also continued to increase.See related article: Blockstream says it raised US$125 million to expand Bitcoin mining operationsFast factsThe mining difficulty reading came in at 39.35 trillion at block height 774,144 in Sunday’s biweekly adjustment, following a 10.26% rise in the previous adjustment on Jan. 16, according to data from BTC.com.The latest Bitcoin mining difficulty reading was nearly 48% higher than on Jan. 21 of last year, when the difficulty reading was at 26.64 trillion.Bitcoin mining difficulty, which determines how much computing power is required to verify blocks on the blockchain in exchange for Bitcoins rewards, changes roughly every two weeks.Bitcoin’s hashrate, a measure of computational power used by miners, was at around 311 exahashes per second on Monday, up from 274.69 exahashes on Jan. 16, BTC.com data showed.Bitcoin’s price gained 2% over the last 24 hours to trade at US$23,690 at 1:30 p.m. in Hong Kong, as part of its 4.16% weekly gain and 43% monthly rise, according to data from CoinMarketCap.The profitability rate of Bitcoin mining stood at US$0.074 per terahash per second in the past 24 hours, down from US$0.185 from a year ago, data from BitInfoCharts showed.See related article: U.S.’ first nuclear-powered Bitcoin mining center to open in Q1