<ul><li>Project Eleven launched “Q-Day Prize” offering 1 BTC to whoever cracks the largest Bitcoin elliptic curve cryptography key using Shor’s algorithm on a quantum computer</li><li>Over 10 million Bitcoin addresses with exposed public keys could be at risk from quantum computing advances</li><li>Participants have until April 5, 2026 to complete the challenge, with even small successes (like cracking a 3-bit key) considered newsworthy</li><li>Current quantum computers can manage 105-156 qubits, while experts estimate 2,000 logical qubits would be needed to break a full 256-bit Bitcoin key</li></ul>

Quantum Computing Competition Tests Bitcoin Security with 1 BTC Reward

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