POPA ReconEthereum can prepare accounts for the post-quantum era without requiring a hard fork
Ethereum can prepare accounts for the post-quantum era without requiring a hard fork SPHINCS introduces a family of post-quantum signature variants optimized for the EVM by swapping standard hash functions with native KECCAK256 and using a smaller signature budget This approach allows for practical, on-chain post-quantum verification costs without requiring any protocol changes or hard fork precompiles https://ethresear.ch/t/sphincs-minus-efficient-stateless-post-quantum-signature-verification-on-the-evm/25165
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