比特幣挖礦難度下降 5% 至 79.5 Terahashes，創下 3 月以來的最低點

7 月 5 日達到 79.50 terahashes（79.5T）的季度低點，比特幣挖礦難度下降超過 5%。

Bitcoin mining difficulty decreased by over 5% on July 5, dropping to 79.50 terahashes (79.5T) for the first time since March.

7 月 5 日，比特幣挖礦難度下降了 5% 以上，自 3 月以來首次降至 79.50 terahashes (79.5T)。

The adjustment, which occurred at block height 775,248, brought down the difficulty from the previous measure of 84.09T. This marks a decrease of 5.38% in mining difficulty, with the adjustment being triggered by a slowdown in hashrate.

此次調整發生在區塊高度 775,248 處，難度較先前的 84.09T 有所下降。這標誌著挖礦難度下降了 5.38%，這次調整是由算力下降引發的。

According to data from BTC.com, the lowest difficulty measure recorded in 2024 was 79.47T on March 11. Difficulty has since risen to an all-time high of 88.10T in April and gradually declined to reach its current level.

BTC.com數據顯示，3月11日，2024年難度最低紀錄為79.47T。

Hashrate, a measure of the computational power used in Bitcoin mining, roughly translates to the number of guesses a mining machine is expected to make before solving the cryptographic puzzle and unlocking one of the remaining Bitcoins.

算力是比特幣挖礦中使用的計算能力的衡量標準，大致可以翻譯為礦機在解決密碼難題並解鎖剩餘比特幣之前預計進行的猜測次數。

Hashrates are adjusted every 2,016 blocks, which takes roughly two weeks. Throughout Bitcoin's history, hashrates have largely increased month over month.

算力每 2,016 個區塊調整一次，大約需要兩週。縱觀比特幣的歷史，算力逐月大幅成長。

For instance, in 2014, the hashrate was around 1.1 gigahashes. At this low hashrate, most desktop PCs could mine Bitcoin (although a more powerful and energy efficient rig is needed to be profitable).

例如，2014 年，算力約 1.1 GB。在如此低的算力下，大多數桌上型電腦都可以開採比特幣（儘管需要更強大、更節能的設備才能獲利）。

Hashrates finally crossed the terahash mark as adoption began to pick up steam towards the end of 2017. They will remain at 79.5T as of July 6, 2024, until the next difficulty change.

隨著 2017 年底採用率開始上升，算力終於突破了 terahash 大關。

According to mining pool @f2pool_official, an ASIC rig with an efficiency rate of 26 watts per terahash or less will be able to mine profitably at the current difficulty measure of 79.5T, assuming Bitcoin's price remains above $54,000.

根據礦池 @f2pool_official 的說法，假設比特幣的價格保持在 54,000 美元以上，效率為 26 瓦/terahash 或更低的 ASIC 鑽機將能夠在當前 79.5T 的難度下實現盈利。

If the price of Bitcoin drops, more efficient rigs will be needed to keep miners profitable. The largest miners should be able to operate comfortably, especially in regions where mining facilities receive energy subsidies, if all else remains equal.

如果比特幣價格下跌，將需要更有效率的鑽機來維持礦商獲利。如果其他條件保持不變，最大的礦商應該能夠舒適地運營，特別是在採礦設施接受能源補貼的地區。