AmericanFortress Proposes Quantum-Resistant Wallet System ZKPoSP
Researchers at AmericanFortress have proposed a post-quantum system to secure Bitcoin wallets called ZKPoSP (Zero-Knowledge Proof of Seed Provenance). This system would allow wallet owners to prove ownership without revealing their seed phrase, which is the true root of wallet ownership.
The team built a working implementation of ZKPoSP in Rust, using the RISC Zero zero-knowledge virtual machine. The system supports the most widely used wallet standards: BIP32, BIP44, and SLIP-10. This compatibility reduces the barrier to adoption compared to systems that would require entirely new wallet architectures.
According to Glassnode, approximately 6.04 million BTC already have permanently exposed public keys, making them vulnerable to quantum attacks. Shor's algorithm could be used by a powerful enough quantum computer to calculate a wallet's private key directly from its public key.