Galaxy Digital has pledged up to $5 million in grants to open-source developers building post-quantum cryptography for Bitcoin.

The company also formed a quantum advisory council under its Bitcoin Quantum Readiness Initiative, which it announced Tuesday. The council includes Barry Sanders, professor and scientific director of Quantum City at the University of Calgary; Damien Bérubé, an MIT Sea Grant Knauss fellow; and Eran Tromer, professor of computer science at Boston University.

The grants will fund quantum-resistant upgrade proposals, post-quantum cryptography, Bitcoin signature schemes, wallet and custodian migration tooling and formal security audits.

Bitcoin’s quantum security is a growing concern, as about 30% of Bitcoin’s…