Array Slot Presence Animation

Create a ten-second code-training animation from [validated sparse-array trace]. Show three aligned slot diagrams, then the supplied serialization result beneath each. Use blank text placeholders if exact glyphs cannot be rendered. Keep hole versus present-value visual distinctions until the observed transformation step.

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.