Project Eleven is a technology company focused on protecting digital assets from future quantum computing threats. Its mission is to help blockchains transition to quantum-resistant security before existing cryptography becomes vulnerable.
What Is Project Eleven and Why Is It Needed?
Most blockchains rely on elliptic curve cryptography, which could be broken by sufficiently powerful quantum computers. Project Eleven exists to address this long-term but existential risk.
The company builds tools that allow networks to migrate gradually, without forcing users to move funds immediately or disrupt live systems.
What Is Yellowpages and How Does It Work?
Yellowpages is Project Eleven’s flagship product for Bitcoin. It allows users to associate existing Bitcoin addresses with post-quantum keys using cryptographic proofs, without requiring an on-chain transaction.
This approach is especially relevant for older wallets with exposed public keys, which are more vulnerable in a post-quantum scenario.
Who Is Backing Project Eleven?
In January 2026, Project Eleven raised a 20 million dollar Series A round led by Castle Island Ventures, with participation from major crypto-native investors and technologists.
The project has also partnered with the Solana Foundation to develop a post-quantum testnet and prototype new digital signature schemes.
What Comes Next for Project Eleven?
The company is preparing to release new products aimed at institutional users and protocol developers. Its work aligns with growing government and regulatory focus on quantum-resilient financial systems.
Conclusion
Project Eleven is planning for a future most crypto projects prefer not to think about yet. By starting early, it is positioning itself as a critical layer of defense for the long-term survival of decentralized networks.
