Foundry USA unexpectedly mined eight Bitcoin blocks in a row. Controlling a couple of third of the community’s hashrate makes the pool run much less probably, but it surely’s nonetheless doable.
abstract
- Foundry USA has straightened out eight Bitcoin blocks starting from 910,500 to 910,507 in an orchid that grabbed Crypto Feed.
- With about 36% of the community’s hashrate and about 30% share of lively pool exercise, the chance of this streak was about 1 in 12,000 individuals, but it surely’s nonetheless inside the realm of coincidence.
- The run exhibits how a number of massive swimming pools can seize a number of blocks in a short while in a row, highlighting considerations about steady centralization in Bitcoin mining.
The uncommon streak of eight consecutive Bitcoin (BTC) blocks starting from 910,500 to 910,507 heights has briefly attracted consideration in feed and block explorer. The repetitive look of a single miner made it troublesome to disregard the sample. The continual blocks have been spectacular. One mining pool, Foundry USA, appeared in eight entries in a row.
Dimension issues
As of late 2024, Foundry USA controls round 36.5% of the whole hash fee of the Bitcoin community, translated into roughly 280 echhash (EH/S) per second. This domination surpasses its rivals equivalent to Antpur and Luxor Pool in China, with Foundry USA because the world’s largest mining pool.
Mining pool by share | Supply: Hashrate Index
On the time of reporting, Foundry USA is reported to be one of many largest public mining swimming pools that seem in most trackers with a share of roughly 31% of reported pool actions per Hashrate Index information. The reported slices meant that Foundry USA discovered about three in about three blocks per 10 blocks on common over that interval. The relative scale of the pool is the context of elementary info that body the streak as not inexplicable however not distinguished.
- A fast calculation utilizing a pool share of ~30% exhibits odds of about 0.008% for a similar pool mining eight consecutive blocks, or about 1 in 12,000 individuals.
In different phrases, profitable streaks have been uncommon, however not unprecedented. It appeared like a fortunate roll of a giant pool cube, not a community acquisition.
The background of low costs
Run exhibits that in report and within the block expresser snapshots, it exhibits very low buying and selling charges and plenty of gentle blocks in current moments. Charges are sometimes reported in single-digit single-digit single-digits of Satoshis per digital byte, with many current blocks carrying comparatively few transactions.
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In that surroundings, miners’ incomes lean closely in the direction of fastened subsidies reasonably than charges, and miners who occur to earn a number of consecutive blocks will repeatedly acquire the identical normal subsidies, including further charge earnings for every block.
Every of the eight blocks featured acquainted structural components recorded in all of the blocks mined.
- Header;
- Coinbase reward.
- And it does not embrace any transactions.
The notable particulars of the general public information have been merely repeated attributions to a single pool throughout consecutive heights. The repetitions seen by explorers and Mempool logs have produced clear, round information factors.
Historic similarities
There was a precedent for sharp public responses as a single pool approached many of the hash energy.
Early episodes of Bitcoin’s historical past attracted related consideration when a distinguished pool dominated most of its reported capabilities. These moments inspired public scrutiny and generally immediate responses from operators and the broader neighborhood. The chain continued to report the blocks in the identical means via these episodes, leaving public information as key proof.
The identical pool listed within the 8 blocks appeared spectacular because it gave an impression of focus. Even when arithmetic confirmed that it was inside the regular vary of a giant pool, the sample was fearful about centralization.
Foundry USA mined precisely eight blocks in a row. That is very unsettling! Even many bitcoiners I do know are starting to panic.
I’ve been warning individuals for years: Bitcoin is dangerously centralized. A small group of miners and insiders dominates each the community and its costs…pic.twitter.com/ooyo17x9rn
– Jacob King (@jacobkinge) August 18, 2025
This episode settles into a bigger circulate of anomalies and a focus cycles that cross via area usually. As Parker Merritt of Coinmetrics Options Engineer beforehand wrote, the centralization of Bitcoin mining swimming pools stays “the very best concern within the Bitcoin neighborhood” at face worth, even at face worth, because the overwhelming majority of mining rewards “are growing danger elements equivalent to censorship and community destruction.”
learn extra: Bitcoin mining faces surge in electrical energy demand and report charges
