StarkWare verifies quantum-safe Bitcoin transactions at $50 GPU cost
- —First QSB output spent on Aug. 26 in Bitcoin mainnet block 964,199
- —GPU proving cost for QSB dropped from about $320 to $50
- —QSB needs no soft fork, new opcodes or consensus changes
- —QSB transactions fail Bitcoin Core's default relay rules
Why it matters: The scheme offers a fallback against quantum attacks, but broad adoption still requires a soft fork with post-quantum signatures.
Source: TokenPost