比特幣 (BTC) 挖礦難度下降 5% 至 79.50 Terahashes，為本季最低

繼 3 月至 5 月網路達到 88.10 太拉哈希的歷史最高點之後，出現了下降。

Bitcoin’s mining difficulty experienced a decline on July 5, dropping by over 5% to 79.50 terahashes (79.5T), the lowest in this quarter of the year and the largest since March when the difficulty briefly fell below 80 terahashes (80T).

7 月5 日，比特幣挖礦難度下降，跌幅超過5%，至79.50 太哈希（79.5T），今年本季最低，也是自3 月難度短暫跌破80 太哈希（80T）以來的最大難度。

The fall came after an increase from March to May when the network hit its highest-ever mark of 88.10 terahashes. However, since then it has been decreasing gradually.

繼 3 月至 5 月網路達到 88.10 太拉哈希的歷史最高點之後，出現了下降。然而，從那時起，它就逐漸減少了。

Mining difficulty is a measure that reflects the computational power required to mine new bitcoins. It adjusts approximately every two weeks to maintain a consistent block time. Historically, the network’s hashrate has shown consistent growth, with few exceptions.

挖礦難度是反映挖掘新比特幣所需運算能力的衡量標準。它大約每兩週調整一次，以保持一致的出塊時間。從歷史上看，網路的算力一直顯示出持續成長，幾乎沒有例外。

For example, back in 2014, hashrate was about 1.1 gigahashes per second meaning that nearly any desktop computer could mine Bitcoin profitably, but later on in late 2017 as adoption increased, it reached the terahash level for the first time.

例如，早在2014 年，哈希率約為每秒1.1 gigahash，這意味著幾乎任何桌上型電腦都可以透過挖掘比特幣來獲利，但後來在2017 年底，隨著採用率的增加，它首次達到了terahash 水平。

According to estimates from F2Pool an operator of a bitcoin mining pool, under the current difficulty of 79.5 terahashes, ASIC mining rigs with an efficiency of 26 watts per terahash or better can remain profitable if Bitcoin’s price stays above $54,000 and electricity costs $0.07 per kilowatt-hour.

根據比特幣礦池營運商F2Pool 估計，在目前79.5 Terahash 的難度下，如果比特幣價格保持在54,000 美元以上且電費每千瓦0.07 美元，則效率為26 瓦/Terahash 或更高的ASIC 礦機仍可保持獲利。

Furthermore, the recent difficulty decrease may temporarily improve profitability for some mining operations. However, if Bitcoin’s price declines, only the most efficient rigs will maintain profitability. Larger mining operations, particularly those benefiting from energy subsidies, are better positioned to adapt to potential price fluctuations.

此外，最近難度的降低可能會暫時提高一些挖礦業務的獲利能力。然而，如果比特幣價格下跌，只有最高效的鑽機才能保持獲利能力。較大的採礦作業，特別是那些受益於能源補貼的採礦作業，能夠更好地適應潛在的價格波動。