The following proposal is a superseding version of EIP-5559: Cross-Chain Write Deferral Protocol, aka CCIP-Write, replacing Ethereum L1 storage with L2 chains and cryptographically secure databases with an aim to cut gas costs and further privacy while retaining the secure aspects of on-chain storage. Methods in this document specifically target security and cost-effectiveness of write deferrals in context of databases. The cross-chain data written with these methods can be retrieved by generic EIP-3668-compliant contracts completing the cross-chain data life cycle.
ERC Link: ERCs/ERCS/erc-5559.md at master · namesys-eth/ERCs · GitHub
Happy to hear comments & feedback.