BTQ releases quantum Bitcoin mining research: actual costs are "astronomical," with the real risk lying in signature vulnerabilities

Deep Tide TechFlow message: April 5, according to PRNewswire, BTQ Technologies released a research paper titled “Kardashev Scale Quantum Computing for Bitcoin Mining.” This is the first time a fully quantified assessment has been made of the physical costs of using quantum computing for Bitcoin mining end to end. The related research points out that the market has long conflated two kinds of quantum threats: one is attacks targeting Bitcoin’s elliptic-curve digital signatures (real and pressing), and the other is quantum mining accelerated by Grover’s algorithm (theoretically possible but with extremely high real-world costs).

The BTQ paper argues that to produce substantive impact on consensus, it is necessary to build a quantum computing cluster with energy consumption far beyond the current level of human civilization. The study also proposes an open-source resource estimation model, covering key steps such as reversible double SHA-256 computation, fault-tolerant quantum error correction, and large-scale quantum qubit scheduling. The conclusion emphasizes that the more realistic risks Bitcoin faces come from vulnerabilities in cryptographic signatures, not from quantum mining capabilities.