EIP-7503: Zero-Knowledge Wormholes

EIP-7503 proposes adding a minting function to Ethereum so users can re-mint Ethers they previously burned, using zero-knowledge proofs to keep the link between burn and mint private. The authors are Keyvan Kambakhsh, Hamid Bateni, Amir Kahoori, Nobitex Labs and 0xwormhole, and the proposal is listed as Stagnant on the Core track. Deposits are sent to an address derived from a secret, and withdrawals require a proof of knowledge of that secret, with change deposits hashed so original amounts cannot be recovered. The draft requires EIP-7708 and a proof-of-work requirement of 24 bits, and it caps deposits at 32 ETH to limit hash collision attacks. The reference implementation and ZK-SNARK design are marked TBD.