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History just got mined on Bitcoin — literally. 🚨 StarkWare's researcher Avihu Levy just pulled off the first-ever quantum-safe Bitcoin transaction on mainnet — no soft fork, no hard fork, no consensus change. It was confirmed in block 964,199 , spending a 10,000-satoshi output protected by the Quantum-Safe Bitcoin (QSB) scheme, and mined by MARA Pool through its Slipstream service. Here's the deal: QSB swaps elliptic-curve cryptography (the thing Shor's algorithm could break) for hash-based, quantum-resistant security — using "signature grinding" to bind the transaction off-chain before it ever hits the mempool. The result? Even a working quantum computer can't forge it. But read the fine print 👇 ⏱️ It took hours of GPU compute and ~$150–$200 per transaction — not ready for daily use 🚫 QSB txs are non-standard under Bitcoin Core's relay policy — they need miner-direct submission (Slipstream) 🎯 It protects individual transactions only — not the whole network, and not addresses with already-exposed public keys (an estimated ~7M BTC sit in that risk zone per Coinbase's quantum council) StarkWare CEO Eli Ben-Sasson is clear: "A soft fork should happen, and I believe it will" — QSB is the safety net while the protocol catches up (think BIP-360 ). First step taken on the road to quantum-proof Bitcoin. The deadline is coming — now there's proof we can meet it. ⏳ $BTC $XRP $ZEC #antiquantumbitcointransactionminedonmainnet #BitcoinSpotETFEnds9DayInflowStreak #NYSilverFuturesDrop3% #BTCDrops3.4%To$77383