Recent research from StarkWare shows that AI-assisted code optimization has reduced the estimated GPU compute cost for quantum-safe Bitcoin transactions from $320 to $66. This 79% drop brings the implementation cost of the Quantum-Safe Bitcoin (QSB) standard down to a much more affordable level.
Initial computation for the first QSB transaction on mainnet last August required 3,100 GPU hours across 100 graphics processors. This workload cost $320, a figure calculated purely for compute rentals excluding standard Bitcoin network fees. The high initial cost had limited the deployment of this advanced protection to experimental testing phases.
Preventing Private Key Compromise
The QSB method utilizes hash-based protection to prevent quantum computers from exploiting public keys. On a public network, large-scale quantum machines could potentially uncover a Bitcoin wallet’s private key simply by analyzing the user’s public key. The QSB method neutralizes that risk through a hash-based security verification system that is difficult to break.
This interim solution operates directly under Bitcoin’s existing consensus rules. Its implementation requires neither a soft fork nor miner approval for a network upgrade. High-volume users can immediately apply this protective layer to their wallets without waiting for the approval of Bitcoin improvement proposals.
From 146 Million to 881 Million per Second
The cost reduction stemmed from a code optimization competition hosted by StarkWare. Programmers competed to redesign code structures to ensure the hardware rendering transactions operated at peak efficiency. As a result, the fastest participant managed to evaluate 881 million candidates per second.
The figure of 881 million candidates per second reflects a hardware performance leap from the initial baseline. Prior to the optimization contest, QSB’s default system could only process 146 million candidates per second. This multi-fold increase in processing power cut GPU runtime, pulling the compute rental bill down from $320 to $66 per transaction.
Bringing security costs down into the double digits paves the way for digital wallets to transition toward future-proof protection. The Bitcoin network gains extra time to mature its quantum defense infrastructure before commercial quantum computing threats begin targeting public users’ assets.
Reported by CoinDesk.
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Disclaimer: This article is for informational and educational purposes only, not financial advice. Cryptocurrency assets are highly volatile and carry significant risk. Always do your own research (DYOR) and never invest more than you can afford to lose.
