Coinbase, Stanford cryptography professor Dan Boneh, and Localhost Research recently hosted a closed-door Post-Quantum Bitcoin Workshop at Stanford University, bringing together Bitcoin developers, cryptographers, researchers, institutional custodians, and hardware-wallet experts. The session assessed quantum computing, the progress of post-quantum cryptography (methods designed to resist quantum attacks), and tradeoffs among signature schemes relevant to Bitcoin. Participants also reviewed Ethereum’s post-quantum planning, institutional custody requirements, potential Bitcoin output types, hardware constraints, and ways to protect assets that are not migrated before a future quantum threat. The group agreed that preparation is more important than predicting when a capable quantum computer will arrive. No final solution or consensus emerged, with tradeoffs spanning security, transaction size, hardware performance, key management, and adoption. Participants said any transition must address wallets, key generation, storage, backups, custody and asset migration, and will likely occur in stages as the technology develops. Coinbase said it will continue convening Bitcoin developers, cryptographers, institutions and other ecosystem participants. The workshop’s stated takeaway for Bitcoin users and investors is that quantum computing is not an immediate threat, but the long-term risk is being addressed before it becomes urgent.