Core idea
A safe update preserves the contract: same approved identity, same v2 grid, full QA, and a documented new hash. Replacing the file without repeating proof breaks traceability.
Think of it this way: It is a renewed passport: the photo may change, but the authentication chain must run again.
8 columns × 11 rows · last two rows = 16 look directions
How to read it
Start from the official anchor, not candidates.
Regenerate only the failed unit.
Rerun structural, semantic, and visual validation.
Install only after all proof passes.
Technical layer
Preserved artifacts include the request, final WEBP, validations, contact sheet, directions, blind pairs, continuity, GIFs, and run summary. Prompts and intermediate images are disposable.