A closer look at “Coinbase Urges Immediate Quantum-Safe Upgrade for Bitcoin, Citing 5% Custody Stake”, exactly as the source publishes it. Coinbase, which custodies roughly 5% of all bitcoin in existence, is calling for the Bitcoin network to begin its quantum-resistant transition without delay. In a new technical proposal, the exchange outlines a phased approach that includes flexible address formats, a backup quantum-proof key scheme, and a separate community discussion on how to handle long-dormant or lost coins. The move reflects growing urgency among major custodians to protect assets from future quantum computing threats that could break current elliptic curve cryptography.
Without a coordinated upgrade, Coinbase warns, bitcoin holders—especially those with legacy addresses—could face irreversible theft once sufficiently powerful quantum machines emerge. The proposal suggests that users should be able to opt in to new address types while the network builds consensus, avoiding a disruptive hard fork. For the complete material, the listing points back to the source inside the network.