Ethereum researchers Thomas Coratger, Tom Wambsgans, and others have published an article discussing the creation of a post-quantum public key registry for validators, aiming to facilitate Ethereum's Proof of Stake transition from BLS signatures to post-quantum secure signature schemes. The article states that this migration will be carried out in phases: first, through a registry fork allowing validators to pre-register post-quantum public keys, followed by several forks to officially switch the signature mechanism. The proposed solution focuses on hash-based XMSS signatures, with public keys only 52 bytes in size, but individual signatures around 3112 bytes. LeanVM and post-quantum SNARK aggregation will be leveraged to reduce network load. https://(wublock123.com)/news/ethereum-launches-anti-quantum-plan-validators-register-quantum-pubkey-62053