Bitcoin’s computing power has reached an unprecedented milestone, with the network sustaining 1 zettahash per second (ZH/s) on a seven-day moving average for the first time, according to Glassnode.
The seven-day average smooths out short-term fluctuations in block times, making this the first verified period where Bitcoin has held above the 1 ZH/s level. For context, 1 zettahash equals 1,000 exahashes (EH/s). The network first exceeded 1 EH/s in 2016 and has climbed from around 800 EH/s at the start of 2025 to today’s record high.
The jump in mining power is expected to trigger a network difficulty adjustment of more than 7% within the next two days, the second-largest upward shift this year. Difficulty recalibrates roughly every two weeks to ensure blocks continue to be produced every 10 minutes. After the update, difficulty is projected to rise to 138.96 trillion.
The milestone underscores accelerating miner deployment and the growing security of the Bitcoin network.
