Galaxy puts $5 million behind Bitcoin’s race to migrate before quantum risk arrives

Galaxy Digital pledged up to $5 million on July 21 to help Bitcoin prepare for the quantum era. The initiative will back developers as they reach key milestones, while supporting research and a Quantum Advisory Council.

Quantum computers cannot crack Bitcoin’s signature security today, but the program aims to get migration work moving before that threat becomes real.

The initiative targets several links in the transition chain: review of quantum-resistant transaction proposals, post-quantum signature integration, formal security audits, and software and institutional migration tools.

Funding can accelerate those workstreams, but Bitcoin's decentralized governance still requires developers, miners, node operators, wallets, exchanges, custodians and users to coordinate an upgrade that Galaxy says could take years to design, test and deploy.

The technical risk has two windows. A sufficiently powerful quantum computer could use Shor's algorithm to recover a private key from an exposed elliptic-curve public key and forge a valid signature. Keys already visible onchain give an attacker a long window. Most Bitcoin spends also reveal a public key while the transaction waits in the mempool, creating a shorter window for a faster attack.

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