Coinbase urges early post-quantum migration for Bitcoin signatures
- —Coinbase custodies about 5% of all existing Bitcoin, mostly for institutions
- —The paper centers on BIP-360 (P2MR) and the less mature P2TRv2, both drafts
- —A 1-of-2 construction lets coins be spent with either a classic or quantum-safe key
- —Google researchers estimate a CRQC could emerge around 2029; migration timelines range from several years to seven
Why it matters: The largest custodian is opening an industry debate on post-quantum migration for BTC, though no deadline or activation mechanism has been agreed.
Source: CryptoTicker