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#AntiQuantumBitcoinTransactionMinedOnMainnet Bitcoin Just Defended Itself Against Quantum Computers That Do Not Even Exist Yet 🔮🛡️ August 26. StarkWare researcher Avihu Levy, working on his own time with engineer Tomer Giladi, mined the first quantum resistant Bitcoin transaction on mainnet, block 964,199, moving 10,000 satoshis. The method, Quantum Safe Bitcoin, uses signature grinding and RIPEMD-160 hashing instead of standard elliptic curve cryptography, achieving roughly 118-bit resistance against Shor's algorithm. No soft fork. No hard fork. No consensus rule change. Bitcoin apparently already had the tools to defend itself, it just needed someone to notice. 😂 Here is the honest technical nuance worth understanding 🧠 Bitcoin sitting in a standard address is already considered quantum safe. The actual vulnerability appears only during the roughly ten minutes a transaction sits unconfirmed in the mempool, when the wallet's public key briefly gets exposed. QSB protects exactly that narrow window, nothing more. It is a stopgap for a threat that does not currently exist, built for a moment that may arrive years from now. 💡 The comedy hiding in the mechanics 🎭 This transaction was so nonstandard that ordinary Bitcoin nodes would not even relay it. StarkWare had to hand it directly to mining company MARA through a special service just to get it included. It also cost $150 to $200 in computation and took hours to complete, works only on older pre-SegWit addresses, and has zero support for Taproot or Lightning. Revolutionary proof of concept, genuinely impractical for everyday use right now. 💎 The honest bottom line 🎯 Even StarkWare's own CEO calls this a stopgap, still pushing for an actual protocol level fix called BIP-360. Bitcoin proved it can defend itself today. Whether anyone will actually use this particular method before a real upgrade arrives is a separate question entirely. 🚀 $BTC