A new study published by BTQ Technologies has estimated the physical and economic limits of using quantum computers for Bitcoin mining. The results show that even in the most favorable scenario, quantum mining would require an astronomical number of qubits and energy, making it impractical at scale.
However, the researchers highlight a more pressing issue: quantum attacks on Bitcoin’s elliptic-curve digital signatures. These attacks are genuine and increasing, emphasizing the need for post-quantum cryptography.
In response, BTQ Technologies has been developing a quantum-safe Bitcoin architecture to address vulnerabilities in authentication and transaction levels. The company’s “Bitcoin Quantum” testnet demonstrates how Bitcoin-like systems can migrate towards post-quantum cryptographic standards.
A new consensus model called “Quantum Proof of Work” (QPoW) is also being developed, designed around computational tasks that are more suitable for quantum hardware. This approach could provide a more energy-efficient and secure framework for future consensus systems.
While quantum computers may not replace Bitcoin mining in the near term, this research highlights the importance of securing authentication and preparing for post-quantum cryptography. BTQ Technologies’ work on QPoW strengthens its position as a leader in developing quantum-native consensus systems that prioritize efficiency and security.
Source: https://thequantuminsider.com/2026/04/07/btq-publishes-study-on-quantum-bitcoin-mining-limits