Coinbase’s quantum advisory council says no quantum computer can break blockchain cryptography today, but developers should start post-quantum signature migration work now. The ugly part is governance: roughly 1.7 million BTC in old P2PK addresses have exposed public keys, and about 7 million BTC look quantum-vulnerable once address reuse is included. The council does not pick a side on burning abandoned coins, but lays out the fight between freezing vulnerable funds, preserving property rights, and using softer migration controls.

TLDR by @Benthic

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