A new proposal circulating among Bitcoin developers is forcing the network to confront a long-standing theoretical risk: the impact of quantum computing on its cryptographic foundations.

Bitcoin Improvement Proposal 361 (BIP-361), introduced by a group of researchers including Jameson Lopp, outlines a structured plan to migrate the network away from legacy signature schemes and toward quantum-resistant alternatives. If adopted, the proposal would impose a phased deadline that could ultimately render unmigrated coins permanently unspendable.

The proposal aims to reduce Bitcoin’s exposure to a future scenario in which sufficiently advanced quantum computers can break the…

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