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Circle Arc quantum resistant roadmap with opt in post quantum signatures

April 6, 2026Wu Blockchain

Wu Blockchain reports Circle published a phased quantum-resistant roadmap for its Arc layer 1, starting with opt-in post-quantum signatures and expanding across wallets, validators, and infrastructure.

Circle announced the quantum-resistant roadmap for its L1 blockchain Arc, adopting a phased approach to full-stack quantum resistance across wallets, private state, validators, and infrastructure.
The mainnet will introduce post-quantum signatures with an opt-in model.
Wu Blockchain
post quantumroadmappost quantumquantum resistant

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