Quantum Threat Looms: AmericanFortress Unveils ZKPoSP to Secure Bitcoin Wallets

AmericanFortress, a Wyoming-based blockchain security company, has proposed a system to protect Bitcoin wallets against quantum threats. The system, called ZKPoSP (Zero-Knowledge Proof of Seed Provenance), uses zero-knowledge proofs instead of elliptic curve signatures to prove wallet ownership without revealing the seed phrase.

According to researchers, around 6.04 million BTC, roughly 30% of the total supply, already have their public keys exposed on the blockchain, making them vulnerable to quantum attacks. This figure represents a known, quantifiable pool of funds that cannot be made safe simply by changing behavior going forward.

ZKPoSP is designed to work with wallets following BIP32, BIP44, and SLIP-10 key derivation standards, which are widely used today. The system includes a new cryptographic component called QBIP32, a multi-curve compatible key derivation method that extends the logic of existing derivation standards.