This is only the second time in Bitcoin's history that its Hashrate has dropped enough to fall below its annual hash average.
The only other time this happened was in 2021, with the Chinese mining ban.
Today, Hashrate is estimated at around 838 EH/s, while the annual average sits at 924 EH/s. This means mining activity has clearly slowed down recently, and this comes after Hashrate set a record of around 1.25 ZH/s, the Zettahash being the largest unit Bitcoin has reached so far.
To understand why, you need to know that the blockchain is built to produce a block every 10 minutes. Depending on how long it takes to mine a block, difficulty adjusts, pushing machines to produce ever more computing power to solve the equation before everyone else.
So it's this competition for rewards (3.125 BTC/block, which get cut in half at every halving) that mining pools are fighting over.
When this activity becomes less attractive, miners scale back their operations to cut costs.
With that in mind, this drop in Hashrate can be attributed to a combination of factors that led miners to reduce activity enough to bring the Hashrate down this much.
➤ To start, between the block rewards being cut in half in April 2024 and Bitcoin's price decline over the past year (-52%), some miners chose to scale back or diversify their operations.
➤ This is where AI comes into play, since it's experiencing a real boom that requires computing power on every front, something miners already have. Naturally, some decided to diversify their business into AI.
➤ Weather conditions have also put miners to the test, between the winter storm early in the year and the intense heat this summer, forcing miners to reduce or halt their activity for a period of time.
➤ The last point people don't necessarily think of comes from various conflicts that can affect commercial shipping, and therefore the pricesand availability of certain components needed for ASICs.
All of this suggests that Bitcoin's Hashrate will eventually stabilize further in the long term, potentially with lower difficulty, which could lead to greater decentralization as the largest mining pools scale back their activity on Bitcoin, making room for more smaller-scale miners on the network.
Bitcoin moves forward, transforms, and increasingly suggests that Satoshi's vision could indeed come to pass in the long run.