Coinbase’s Oct. 13 post says Bitcoin (BTC) may need several years to migrate toward post-quantum cryptography and discusses design choices for that effort.
The company considers possible signature schemes and flexible output formats. It presents both as elements of preparing the network for a future transition.
A separate factor in assessing Bitcoin’s quantum exposure is whether public keys are visible on the blockchain while coins remain unspent. That can depend on transaction format and prior use, as EconoTimes’ earlier report on public-key visibility explains.
The visibility question concerns what information may be exposed on-chain. Coinbase’s post separately examines signature and output choices for a potential transition.



