Bitcoin News: Bitcoin Just Mined Its First Quantum-Safe Transaction
Key Insights:
- Bitcoin news confirms its first BTC quantum-safe transaction in block 964,199.
- QSB used hash-based protection without changing Bitcoin’s consensus rules.
- QSB transactions may cost $150–$200 and require hours of GPU computing.
Bitcoin news turned to quantum security after Bitcoin confirmed its first known quantum-safe transaction on mainnet on August 26. StarkWare researcher Avihu Levy developed the Quantum Safe Bitcoin method, known as QSB, and tested it on the live network.
MARA mined the transaction through its private Slipstream service, avoiding any change to Bitcoin’s existing consensus rules. The test used a 10,000-satoshi output and was confirmed in Bitcoin block 964,199.
Quantum Safe Bitcoin Targets the Public-Key Exposure Window
Bitcoin held behind a hashed P2PKH address hides the public key until the holder spends those funds. The risk appears after broadcast, when a transaction reveals that public key before miners add it to a block.
That exposure can last roughly ten minutes, creating the window that QSB was designed to address. A sufficiently powerful quantum computer could theoretically derive the private key during that period and redirect the funds.
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