Bitcoin Post‑Quantum Risk: Freeze Satoshi’s 1.7M BTC or Legal Salvage

Nic Carter says Bitcoin (BTC) should prepare for a post-quantum cryptography transition that could expose Satoshi-era holdings. He argues the roughly 1.7M BTC locked in old pay-to-pubkey (p2pk) outputs may become vulnerable if Bitcoin eventually deprecates elliptic-curve signatures (ECDSA/Schnorr) and a cryptographically relevant quantum computer arrives. Carter outlines three options. A protocol-level “freeze” would block coins that cannot migrate to post-quantum signatures. Doing nothing would accept the consequences. His preferred path is a legal salvage framework: a US quantum-capable entity (he cites Google or IBM) could be appointed by a court as a neutral custodian to recover the at-risk BTC into trust-like structures, then return them where possible or hold them during judicial proceedings. The debate is framed as governance vs ideology. The freeze camp (custodians, exchanges, fiduciaries, large institutions) wants to prevent hostile recovery and market destabilization. Purists argue freezing violates Bitcoin’s monetary rules and decentralization ethos, pointing to precedent such as Ethereum’s post-DAO intervention. Carter also says freeze may be more likely now due to more concentrated Bitcoin ownership among corporate entities, ETFs, and custody/asset managers. At publication, BTC traded around $74,795. For traders, the key risk is potential supply-chain uncertainty around “frozen” vs “salvaged” coins. Any credible move toward a freeze fork or legal process could trigger volatility, liquidity fragmentation, and headline-driven repricing even before quantum is relevant.