
StarkWare says a weeklong optimization challenge reduced the estimated GPU cost of preparing an experimental quantum-resistant Bitcoin transaction to less than $67. The result represents a 79% decline in the projected cost of the preparation process. The approach has been described as a potential “last-resort measure” for Bitcoin in the context of quantum resistance, although the source material identifies it as experimental. The lower estimate could make the process less expensive to carry out, but no broader implementation details were provided. Cointelegraph reported the update on September 24, 2026. The development is directly relevant to Bitcoin (BTC), as it concerns a proposed method for preparing a transaction designed to withstand quantum-related risks.