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The Qubit Gap

Log-scale chart comparing physical qubit counts in today's best quantum hardware against the ~500,000-qubit threshold needed to break secp256k1. Tap a chip to see how far it falls short.

chart SVG CryptographySecurityBlockchain Jun 21, 2026
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The Qubit Gap — tap a row to inspect · data as of · Babbush et al., arXiv:2603.28846; IBM Quantum; Google Quantum AI (Nature 2024) ↗ open artifact ↗

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