Practical patterns - If you hate L2 trust tradeoffs: keep p…

Practical patterns
- If you hate L2 trust tradeoffs: keep per-prompt off-chain; anchor registry on L1; post a Merkle root of accepted prompts hourly/daily to L1 (one event anchors thousands of prompts).
- If you want low-cost per-prompt on-chain checks: put the registry on a mature L2 (Base/OP/Arbitrum). Optionally checkpoint to L1 weekly.
- If you want maximum sovereignty: run an app-rollup (e.g., OP Stack/Polygon CDK) with your own sequencer and a DA layer (Celestia/EigenDA), and periodically checkpoint to Ethereum.
- If you prefer monolithic high-throughput chains: Solana/NEAR can do sub-cent writes, with different decentralization/trust profiles.