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Morning Edition · Friday, August 28, 2026Published at 1:39 AM EDT · New York
Bitcoin's First Quantum-Safe Spend Was Mined Without Any Change to Consensus Rules
The transaction relied on hashes instead of elliptic-curve signatures, cost between $75 and $150 in cloud computing to produce, and leaves roughly 7 million bitcoin in outputs with exposed public keys.
A bitcoin transaction spent from an output secured by hashes rather than elliptic-curve cryptography was mined into block 964,199 on August 26. The method, called Quantum Safe Bitcoin, uses signature grinding together with RIPEMD-160 hashin…
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Quantum Risk Moves From Theory to Crypto Roadmaps
Over the next 3-6 months, quantum-resistance becomes a concrete design and custody concern across major chains and institutional custodians, driving opt-in post-quantum schemes and 'long-dormant coin' risk discussion.
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