Base64url Padding State Demo

Create a 12-second schematic clip from [validated encoding fixture]. Show source bytes as fixed blocks, the supplied encoded form, then the contract's accepted or rejected outcome for its padding variant. Do not recompute or invent characters visually; reserve exact strings for overlays. Use two variants only, with a clear separator between decoder tolerance and canonical output rules.

Confirm required reference images and timing inputs are present before generating. Keep objects, identities, spatial relationships and light direction consistent. Render the clip when video generation is supported; otherwise supply a timed shot list, reference checklist and generation-ready prompt, labeled as a production plan. Do not claim rendered output without an actual file. Check the opening, transition and final frame against the stated counts and geometry.