Dear Bitcoin Developers,

I am writing to share my proposal for a new Bitcoin Improvement Proposal (BIP) titled Quantum-Resistant Address Migration Protocol (QRAMP). The goal of this proposal is to safeguard Bitcoin against potential future quantum attacks by enforcing a mandatory migration period for funds held in legacy Bitcoin addresses (secured by ECDSA) to quantum-resistant addresses.

The proposal outlines:

• Reducing Vulnerabilities: Transitioning funds to quantum-resistant schemes preemptively to eliminate the risk posed by quantum attacks on exposed public keys.
• Enforcing Timelines: A hard migration deadline that forces timely action, rather than relying on a gradual, voluntary migration that might leave many users at risk.
• Balancing Risks: Weighing the non-trivial risk of funds being permanently locked against the potential catastrophic impact of a quantum attack on Bitcoin’s security.

Additionally, the proposal addresses common criticisms such as the risk of permanent fund loss, uncertain quantum timelines, and the potential for chain splits. It also details backwards compatibility measures, comprehensive security considerations, an extensive suite of test cases, and a reference implementation plan that includes script interpreter changes, wallet software updates, and network monitoring tools.

For your convenience, I have published the full proposal on my GitHub repository. You can review it at the following link:

Quantum-Resistant Address Migration Protocol (QRAMP) Proposal on GitHub

I welcome your feedback and suggestions and look forward to engaging in a constructive discussion on how best to enhance the security and resilience of the Bitcoin network in the quantum computing era.

Thank you for your time and consideration.

Best regards,

Agustin Cruz