# Proof-study comparison

These are adaptations of sequencing, not reproductions of branding or source imagery. Compare the source-linked clips with the originals at 1×, then inspect the boundaries. The settings below come from the original study timelines; source intervals retain their own precision labels.

## Title to interface · 10 seconds

| Criterion | Source evidence | Original study / decision |
| --- | --- | --- |
| Timing | Codex retains its title at 2.544 s and shows the app at 2.586 s. Atlas shows a prompt at the sampled 6.500 s, with browser context developing later. | A deliberate cut at 3.000 s follows a completed-title hold from 0.700 s. Four seconds of interface orientation precede the push at 7.000 s. This is intentionally slower and more forgiving, not copied timing. |
| Composition | Codex presents a formed desktop; Atlas reveals the larger container around an input. | A single .86W × .78H workspace retains a header and sidebar. The original left-aligned title mask differs from both source typographic builds. |
| Attention | The Codex review example establishes the pane before its push around 95.3–95.9 s. | The .500 s push is isolated from typing and result changes. A fixed focus pivot makes the next useful region larger. |
| Continuity | Atlas's separate shopping reframe is a hard cut, not a smooth zoom. | The title cut is explicit; the later push has intermediate positions. No inferred title-to-window morph. The two recipe segments join with identical pixels. |
| Readability | Complete title and identifiable app precede the tighter crop. | The complete phrase gets 2.3 s; the interface gets 4 s before moving. The final detail remains still from 7.5 to 10 s. Essential labels remain readable in the saved 640 × 360 inspection. |

## Interaction to readable result · 18 seconds

| Criterion | Source evidence | Original study / decision |
| --- | --- | --- |
| Timing | Codex's pointer leads its changed workspace. Agent's task example has container, typing and website anchors at 4.367, 4.867 and 6.250 s, not measured latency. | Target arrives at 1.3 s; complete request at 5.8 s; submission at 7.1 s; result reveal begins at 9.9 s; the final protected hold begins at 11 s. Ordering is causal; waits are explicitly illustrative. |
| Composition | The preview film retains the request beside its running output. The IDE example exposes the diff and review controls. | Request and result share one stable workspace. Only the result slot changes. The fixture proves grouping only; it does not imply a real agent or backend ran. |
| Attention | The preview's dashboard begins appearing before its chart finishes drawing. | Container arrival is not the hold onset. Fade completes at 10.4 s, a settling allowance runs to 11 s, then nothing moves. The cursor is parked outside the output. |
| Continuity | The source task remains recognizable through work and result states. | The complete request persists after submit. Pixel tests check all three inter-recipe joins, including the pending state. There is no blank reset between segments. |
| Readability | The two sources show different kinds of output; neither defines a universal hold. | The result has eight essential words. The proposed floor is about 3.27 s. The combined stable hold is 7 s, and the card is readable at 640 × 360. This validates the fixture, not comprehension of arbitrary dense output. |

## Result to ending · 9 seconds

| Criterion | Source evidence | Original study / decision |
| --- | --- | --- |
| Timing | Codex's final output is still present at sampled 127.503 s; closing type is present by 128.003 s. Its mark is visually quiet around 131.131 s. | Five seconds of unchanged proof precede the ending cut at 5 s. The original mark builds from 5.3 s; the declared quiet interval is 6.6–9 s. |
| Composition | Codex clears to a simple field. Atlas builds an interior symbol within an already-present tile and later adds a URL card. | Original closing text and three simple bars occupy a quiet paper field. No copied knot, icon, logo, slogan, URL call to action or source pixels. |
| Attention | Both closing studies separate main arrival from a quieter tail. | Two readable lines arrive together; bars finish before the quiet hold. No continuous rotation or ambient texture. |
| Continuity | The final UI and closing identity are different scenes, not a proven morph. | The output-to-ending change is a hard cut. The result-hold and ending recipe join before that cut with identical pixels. |
| Readability | Source quiet landmarks are visual judgments, not exact freeze declarations. | Raster hashes verify the study's ending actually stops moving for 2.4 s. The export has no audio track. Actual presentation end must still be scheduled against the supplied recording, not this 9 s research example. |

## Repairs exposed by reproduction

The first object-continuity test compared the full rounded-card bounding box. That incorrectly counted its transparent corners, where the surrounding background is supposed to change. The acceptance test now compares every opaque card pixel through the same rounded mask. It still rejects a moved, resized or altered object; it does not require the old background to survive a context cut.

The entry point now states the difference between design data and the explicit renderer: the documented layer rectangles are a contract, not a general-purpose layout engine. Phase times, selected motion parameters, assets and duration changes drive the reference implementation. A new geometry requires updating the construction and checking it. This prevents an agent from assuming that editing a JSON rectangle silently rewrites the entire interface.

Remaining gates are production-specific: authentic product capture, actual recorded emphasis and pauses, real reaction/startup offset, supplied ending tail, audience reading test, final font/identity approval, and Slides/OBS/meeting playback. None is passed by a neutral synthetic sequence.