11/ Temporary Contract Storage (draft, @ngweihan_eth): • Semi-persistent storage managed by a system contract; clears on a cadence (e.g., ~6 months). • TMPStore/TMPLoad; gas < SSTORE/SLOAD. • Moves ephemeral data out of permanent storage; slows growth but doesn’t shrink state.

New post on EthResear.ch! Compression-based state expiry By: - gballet 🔗 ethresear.ch/t/23443 Highlights: - The proposed method can expire 'cold' data by moving it to cold storage, which reduces the size of the main database and improves performance. - About 20% of the state can be expired, which also leads to a significant reduction in indices, further enhancing database performance. - The approach allows for future enhancements, such as more granular expiry of data, which could potentially save up to 80% of the total state. - The method is designed to minimize user experience degradation, allowing for experimentation with decentralized state storage solutions. - Challenges include ensuring data availability for processes like snap sync, which may require new algorithms to handle missing state data. ELI5: This research proposes a way to manage old data in databases by moving less frequently accessed data to cheaper storage, which helps keep the main database fast and efficient. It suggests a method to gradually delete this old data after a certain period of inactivity, making it easier to manage and reducing storage costs.