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Stablecoin issuer Tether plans to release its Bitcoin Mining Operating System (MOS) open source by the fourth quarter of 2025 to help reduce dependency on proprietary software and promote decentralization in the Bitcoin mining ecosystem. Tether’s CEO, Paolo Ardoino, announced the initiative in an X post on Monday.
Tether’s goal is to make Bitcoin mining more accessible for smaller operators who often face high entry barriers. Ardoino emphasized that new companies will be able to enter the industry without depending on expensive third-party solutions. “A horde of new Bitcoin mining companies will be able to enter the game and compete to keep the network safe,” he said.
The upcoming release of Tether’s open-source mining OS is part of a broader effort to strengthen decentralization and reduce operational asymmetries in the sector. The company believes this action might create a more equitable environment between publicly traded mining firms and smaller private operators.
The MOS platform uses a peer-to-peer Internet of Things (IoT) architecture and can communicate between multiple devices across several scales. Ardoino described the system as scalable and modular, proposing that it can run on small setups like Raspberry Pis or power large-scale mining farms. The platform will support a wide range of infrastructure, such as energy containers and power devices.
Tether has already taken steps toward this objective. In April 2025, it partnered with the Ocean mining pool to commit its current and future hashrate to support decentralized block building. By giving the open-source community tools to operate independently, Tether aims to reduce the concentration of mining power and encourage more diverse participation in network security.
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Focus on Bitcoin mining represents a major extension of Tether's business strategy beyond the issuance of stablecoins. During the 2025 Bitcoin Conference in Las Vegas, Ardoino disclosed that the company had already invested around $2 billion in Bitcoin mining and energy infrastructure.
Meanwhile, the CEO noted that their Tether mining investments might exceed earlier estimates. He said the company could eventually become the biggest Bitcoin miner in the world by the end of 2025, surpassing even publicly traded competitors. This expansion consists of creating MOS, which is an internal infrastructure and technology to optimize operational efficiency and the creation of internal infrastructure.
