Analytic region pages now retain the immutable shared manifest, so LOD1 page tiles get the L9 uniform-block proofs (71.7 -> 5.6 ms per tile). Reviewer W12 no-hash: 24 m crossing 0.898 -> 0.166 s; Luna: 1 km 5.89 -> 1.25 s. Spawn unchanged; all L1/FloatingIslands hashes and the 24 m crossing hash unchanged (W1/W12). KNOWN BUG (pre-existing, measured here): the same tile key yields different density from the base shape (manifest field) than from a region page (legacy field), sometimes different mesh too, so output depends on streaming history. To be fixed in L13. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CSFYgsdW8ejZSyiMf4qRSX