Bitcoin News
By James Thorp
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Why This Matters for Bitcoin. The proposal stems from a growing concern: quantum computers could eventually break the…
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Three-Phase Migration Plan. The proposal lays out a phased migration to post-quantum secure cryptographic schemes.
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The Urgency of Quantum Resistance. Quantum computing is advancing rapidly. The U.S. National Institute of Standards and Technology…
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Risks for Stakeholders. Each group in the Bitcoin ecosystem faces distinct consequences if they fail to act:
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Bigger Than SegWit or Taproot. If implemented, this migration would be the largest protocol upgrade in Bitcoin’s history—bigger…
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Conclusion. The Bitcoin community has long prided itself on decentralization and security.
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Bitcoin developers have put forward a detailed proposal aimed at securing the network against the growing threat posed by quantum computers.
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The proposal stems from a growing concern: quantum computers could eventually break the cryptographic systems that secure Bitcoin transactions.
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Around 25% of all existing Bitcoin—approximately 4.9 million BTC—have public keys already exposed on-chain.
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The proposal lays out a phased migration to post-quantum secure cryptographic schemes. The plan hinges on the adoption of the P2QRH output type defined in BIP-360.
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Phase A (3 years post-P2QRH activation): New transactions to quantum-vulnerable addresses would be disallowed.
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Phase B (2 years after Phase A): All nodes would reject transactions signed using ECDSA or Schnorr, effectively rendering legacy outputs unspendable.
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Phase C (Optional): For users who miss the migration deadline, this phase may allow recovery of funds using a zero-knowledge proof of their BIP-39 seed phrase.
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This gradual timeline is designed to give users, exchanges, miners, and institutions ample time to upgrade.
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Quantum computing is advancing rapidly. The U.S. National Institute of Standards and Technology (NIST) finalized three post-quantum cryptographic algorithms in 2024.
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