Coinbase Lays Out Post-Quantum Needs for Bitcoin Custody

Coinbase, the custodian holding about 5% of all BTC, published a technical blog on October 13 outlining what it wants from Bitcoin’s move to quantum-resistant security. Its central point is that choosing a new digital signature scheme is only one piece of the job, since any plan also has to fit Bitcoin’s scarce block space and work for custodians and everyday wallets. In the blog post, the exchange said it is already preparing its own systems, convening talks with Bitcoin developers and backing open-source work through the Bitcoin Security Consortium.