Bitcoin mining difficulty has surged to a fresh all-time high of 127.6 trillion this week. It’s set to retreat by a bit to 123.7 trillion with the next adjustment due on August 9. This adjustment is driven by the fluctuations in miner activity and overall computing power being utilized on the entire Bitcoin network.
Mining difficulty is an important aspect of how Bitcoin operates. It keeps new blocks being added to the blockchain at a consistent rate, about every 10 minutes. If additional computing power (hashrate) is contributed to the network, difficulty ramps up to keep that rate intact. If computing power declines, the difficulty decreases to keep the block times uniform.
Data indicates that the difficulty of Bitcoin had fallen in June and the first part of July, going as low as 116.9 trillion. However, it started rising in the latter half of July, following its long-term trend. This is indicative that even though miner activity varies, the strength of the network as a whole is increasing.
Difficulty is a conception closely related to the stock-to-flow ratio, a measure describing the rarity of an asset. The stock-to-flow ratio accounts for the existing stock versus new creation. The stock-to-flow ratio of Bitcoin is presently greater than that of gold, and thus it is among the rarest assets in existence. More than 94% of all 21 million Bitcoins have already been mined.
This controlled supply, imposed by adjustment of difficulties, prevents excessive Bitcoin from coming onto the market at any one time. It protects against inflation, price collapse due to oversupply, and maintains mining as a demanding process as more people join the network.
Ultimately, while the present difficulty is likely to reduce somewhat in the coming days, the overall trend suggests a more powerful and resilient Bitcoin network, a network that keeps evolving with the changing global mining environment.