Galaxy Commits $5M to Bitcoin Quantum Readiness Initiative
In brief
- Galaxy Digital pledged $5 million in developer grants, research funding, and advisory council to address quantum computing threats to Bitcoin.
- Q-Day refers to when quantum machines could break elliptic curve cryptography securing Bitcoin using Shor's algorithm.
- Project Eleven estimates 6.9 million Bitcoin in quantum-exposed addresses, with quantum computers potentially arriving by 2030.
The Quantum Threat to Bitcoin
Q-Day isn't theoretical anymore. Using Shor's algorithm, an attacker with a sufficiently powerful quantum computer could derive a private key from an exposed public key, forge a signature, and drain a wallet. A May report from Project Eleven concluded that a cryptographically relevant quantum computer is more likely than not to exist by 2033 and potentially as early as 2030.
The stakes are staggering. Project Eleven estimated roughly 6.9 million Bitcoin sit in quantum-exposed addresses. In June, Coinbase's quantum advisory council pegged vulnerable supply at about 7 million BTC and urged developers to begin migration work rather than debate timing.
Galaxy's Multi-Pillar Response
The initiative will fund work on post-quantum cryptographic solutions, publish analysis through Galaxy Research, and convene a Quantum Advisory Council. The council's inaugural members include University of Calgary professor Barry Sanders, MIT Sea Grant Knauss Fellow Damien Bérubé, and Eran Tromer from Boston University.
The timing aligns with growing urgency in Washington. President Donald Trump signed two executive orders in June advancing U.S. quantum capabilities and moving the federal deadline for post-quantum cryptography to December 2031.
Defense Mechanisms in Motion
Defenses under discussion include migrating funds to quantum-resistant addresses and adopting new signature schemes through proposals such as BIP-360 and BIP-361. Old and reused addresses carry the greatest risk. On July 16, Project Eleven unveiled a technique to let users prove wallet ownership after Q-Day by verifying control of a parent key rather than a signature.
The gap between quantum computing progress and Bitcoin's readiness remains real. Galaxy's role is to bridge that gap—making the threat legible to investors and policymakers while funding the developers doing the technical work.
Frequently asked questions
What is Q-Day and why does it threaten Bitcoin?
Q-Day is the point at which a quantum computer could break Bitcoin's elliptic curve cryptography. Using Shor's algorithm, an attacker could derive a private key from an exposed public key, forge a signature, and drain a wallet. Project Eleven estimates this could happen as early as 2030.
How much Bitcoin is at risk from quantum computers?
Project Eleven estimates roughly 6.9 million Bitcoin sit in quantum-exposed addresses. Coinbase's quantum advisory council pegged vulnerable supply at about 7 million BTC. Old and reused addresses carry the greatest risk.
What defenses exist against quantum threats to Bitcoin?
Defenses include migrating funds to quantum-resistant addresses and adopting new signature schemes through proposals like BIP-360 and BIP-361. Project Eleven also unveiled a technique to prove wallet ownership after Q-Day by verifying control of a parent key rather than a signature.
