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2025-08-20 15:20:57

51% of Bitcoin hashrate controlled by Foundry USA and AntPool

Analysis of the Situation Regarding BTC Hashrate

Hashrate Control

According to data provided by WhaleWire CEO Jacob King, Foundry USA and AntPool currently control over 51% of the Bitcoin (BTC) network hashrate. This situation raises significant concerns regarding centralization, which could lead to potential risks for the stability and security of the network. When one or several mining pools hold a substantial portion of the hashrate, it creates conditions for transaction manipulation and the possibility of blocking new participants from the network.

Historical Context

  • 2015: A similar situation was observed with the GHash.io pool, which also controlled over 51% of the hashrate. As a result of this control, the price of BTC experienced a significant decline of 87%. This incident served as an important lesson for the community, highlighting the risks associated with centralization.
  • August 18: Foundry USA mined eight consecutive blocks with minimal fees, further intensifying concerns regarding their influence on the network. Such actions may be perceived as an attempt at dominance, raising apprehension among other miners and network participants.

Risks and Opinions

  • Jacob King expresses the view that this situation poses a threat of centralization and describes the market as "unstable." He emphasizes that such a concentration of hashrate could negatively impact the decentralized nature of Bitcoin, which is one of its core characteristics.
  • Critics argue that a 51% attack is economically and technically unlikely. Key arguments include:
    • Miners may leave the pool in response to suspicious actions, making it difficult to maintain long-term control over the network.
    • Reputational risks render an attack meaningless, as the consequences for the pool could be catastrophic, including loss of trust from the community and a decrease in revenue.

Comparison of Attack Probability

In the community, the likelihood of a 51% attack is compared to "beating Dwayne Johnson in arm wrestling" — theoretically possible, but practically extremely unlikely. This comparison underscores that while such an attack could be technically executed, the actual conditions for its realization make it highly improbable. The Bitcoin community generally reacts actively to any attempts at manipulation, serving as an additional deterrent.

The situation regarding BTC hashrate requires careful monitoring; however, current assessments indicate that, despite the centralization, real threats to the network remain questionable. It is essential for community participants to remain vigilant and actively track changes in the hashrate to prevent potential risks. The discussion of this issue underscores the necessity of maintaining a decentralized structure within the Bitcoin network and the importance of transparency in the actions of mining pools.

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