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Bitcoin's network hashrate has climbed to a seven-month high even as major publicly traded miners redirect capacity toward artificial intelligence, according to BlocksBridge Consulting's latest Miner Weekly newsletter, reported by Cointelegraph on Aug. 21, 2026. The seven-day average hashrate recovered above 1 zettahash per second, equivalent to 1,000 exahashes per second, its highest level since March 3. Hashrate measures the computing power securing the Bitcoin network. The recovery suggests miners still operating on the network are seeing little relief from competition despite the industry's AI transition. Bitcoin's mining difficulty increased 5.92% on Oct. 16, with BlocksBridge projecting another 5.16% increase at the next adjustment, which would mean roughly an 11.4% rise across two consecutive adjustments.

Background

The source describes an industry in transition. BlocksBridge previously reported a 23% decline in publicly traded miners' realized hashrate, alongside a 52% quarterly increase in their reported AI and high-performance computing revenue. It estimated that the displaced capacity represented roughly $1.5 billion in mining hardware. That shift has already taken substantial mining capacity offline, yet the network's total computing power has recovered anyway, which the newsletter reads as evidence that other operators are replacing lost computing power and intensifying competition among remaining network miners. BlocksBridge points to smaller and mid-sized miners potentially buying equipment from larger operators. It cites Sazmining, which advertises secondhand Antminer S21 XP machines that buyers can deploy through hosting facilities in Paraguay and Texas. For miners with access to cheaper electricity, buying used machines could be more economical than investing in new equipment, and it means hardware displaced by AI conversions could continue mining Bitcoin elsewhere. However, the source notes it is unclear how much of the equipment being sold actually comes from publicly traded miners, or how much has returned to the network. Some industry observers, including CryptoQuant founder and CEO Ki Young Ju, view rising computing power as an indirect bullish signal for Bitcoin.

What happened

According to Cointelegraph's reporting on BlocksBridge Consulting's Miner Weekly newsletter, Bitcoin's seven-day average hashrate has recovered above 1 zettahash per second, equivalent to 1,000 exahashes per second, its highest level since March 3. The newsletter states that the recovery suggests miners still operating on the network are seeing little relief from competition despite the industry's ongoing transition to AI workloads. BlocksBridge reported that Bitcoin's mining difficulty increased 5.92% on Oct. 16, and it projects another 5.16% increase at the next adjustment. If that estimate holds, difficulty will have risen roughly 11.4% across two consecutive adjustments. The newsletter wrote that this is hardly the breathing room remaining miners might have expected from the AI migration. BlocksBridge previously reported a 23% decline in publicly traded miners' realized hashrate, alongside a 52% quarterly increase in their reported AI and high-performance computing revenue, and estimated the displaced capacity represented roughly $1.5 billion in mining hardware. The newsletter points to Sazmining advertising secondhand Antminer S21 XP machines deployable through hosting facilities in Paraguay and Texas, while cautioning it is unclear how much of the sold equipment comes from publicly traded miners or how much has returned to the network. Separately, CryptoQuant founder and CEO Ki Young Ju argued on X that higher hashrate means stronger security and better fundamentals as a store of value.

Market impact

The source offers a limited set of figures. Bitcoin's seven-day average hashrate recovered above 1 zettahash per second, or 1,000 exahashes per second, its highest since March 3. Mining difficulty rose 5.92% on Oct. 16, with BlocksBridge projecting a further 5.16% increase at the next adjustment, amounting to roughly 11.4% across two consecutive adjustments if the estimate holds. BlocksBridge previously reported a 23% decline in publicly traded miners' realized hashrate and a 52% quarterly increase in their reported AI and high-performance computing revenue, estimating the displaced capacity represented roughly $1.5 billion in mining hardware. The source does not provide Bitcoin's price, trading volumes, fund flows, or any market capitalization figures, so no price reaction can be attributed to this data. The only market-facing interpretation in the source is qualitative: BlocksBridge's observation that remaining miners are getting little relief from competition, and Ki Young Ju's characterization of rising computing power as an indirect bullish signal reflecting continued institutional investment in publicly traded mining companies. No specific institutional investment figures are given beyond the revenue and hardware estimates cited.

Why it matters

The source supports a narrow but meaningful conclusion: the AI migration by publicly traded miners has not eased competitive pressure on the Bitcoin network. BlocksBridge frames the difficulty increases as evidence that remaining operators face growing competition rather than relief, even as a 23% decline in publicly traded miners' realized hashrate and roughly $1.5 billion in displaced hardware have come offline. The hashrate recovery implies replacement capacity is being deployed, potentially by smaller and mid-sized miners purchasing secondhand machines such as the Antminer S21 XP units Sazmining advertises for hosting in Paraguay and Texas. For miners with access to cheaper electricity, used equipment may be more economical than new purchases, which could keep displaced hardware mining Bitcoin elsewhere. The source cautions that the scale of this recycling is unknown, so the durability of the recovery is uncertain. The secondary consequence the source raises is interpretive: observers such as Ki Young Ju see higher hashrate as stronger security and better fundamentals as a store of value, and as a signal of continued institutional investment in publicly traded mining companies.