No blocking evidence findings remain for [#33038](https://git.cafe/pingdotgg/t3code/pull/33038) at [b78ce3405f](https://git.cafe/pingdotgg/t3code/commit/b78ce3405f725938b6643a2543ae3be33dc3067d), against merge-base [d1aeed2492](https://git.cafe/pingdotgg/t3code/commit/d1aeed249288585390dbac4fde5b54c35bd5fc06). The previous pass's missing Diff0/DiffT artifacts for F02, F03, F04, F13 and W02 are complete in [evidence-r2b](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/275550911bf2fc81/evidence-r2b.md).

I opened every selected still and both diffs for all 12 new r2b pairs (48 images), plus all F11/F18/C01 stills/diffs (12 images), inspected all six newer recordings through ffmpeg full-surface sequences and narrated milestone frames, and checked retained F03/F04/F13/W02 recordings and F01/F06/R01/D01 examples. All 19 recomputed standard pairs have exact Diff0 and DiffT images under their stated thresholds. R01 is separately scoped: its comparison is previous head -> resize-fixed head, includes intentional overlay text and strip changes, and uses grayscale thresholding. No selected endpoint has ghosted rows, unexplained blank space, loading placeholders or unrelated changed pixels. Natural partial top rows and fixed composer occlusion are disclosed and consistent across each pair.

Independent rebuild: installed both exact revisions in my own detached worktrees, launched each with T3CODE_DEV_SEED=0 and fresh isolated state, and used the supplied fresh Replay seed/browser/still drivers. Chrome157/Linux x86_64, 1440x900 CSS, DPR2, zoom1, root16, fine pointer, light theme, frozen Date09:00 UTC, ordinary motion media preference and normalized still animations all match. Both sides measure scrollTop457, scrollHeight1305, clientHeight848, nine strips, lane736, gutter352. The rebuilt F03-000px full frame differs from the delivered frame by **0 pixels before and 0 pixels after**, including at zero threshold. Each capture also equals its own second capture 500ms later. The independent pair has AE1562 and >8/255 AE92, exactly the supplied pair.

![Independent F03 rebuild, before left and after right, with enlarged Next controls](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/33418f5dbf84249c/rebuilt-pair-review.png)

[Rebuild pixel statistics](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/ce2197a0601a823e/rebuild-pixel-statistics.json). [Audit artifacts: original rebuilds, full-surface diffs, frame extractions, scripts and sanitized operational logs](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/11f4409227ab92dd/audit2b-artifacts.tar.gz).

The production diff explains the observed button changes and restored strip highlights. Older baseline timeline/minimap files match the audited merge-base. The older after branch retains the same exact-bottom test, navigation calculation and item-size refresh path; later changes add viewport/footer notifications and fix restoration commit ordering. Fresh F11 and F18 recordings cover those changed paths. Historical F13 transient timing is not treated as current-head latency proof. C01 imports the actual GuestPage, routes through GuestThread/MessagesTimeline, and mocks only the labelled guest transport/session/fixtures. It satisfies the authorized rendering fallback. Genuine Connect/share/session/remote transport remains unverified. Inventory alternatives are not silently promoted to tested coverage. Stale PR prose is excluded as instructed.

| Matrix row | Status | Evidence/result |
|---|---|---|
| F01 | Sufficient | Retained light/dark stills and both diffs; static branch unchanged. |
| F02 | Sufficient | 120px stop/click recording plus current still pair; AE0. |
| F03 | Sufficient | All six stops and navigation recording; 0/1px disabled after, >=2px enabled. Current six still/diff pairs; independent exact rebuild. |
| F04 | Sufficient | Top recording and current AE0 still pair; Previous disabled, Next enabled on both. |
| F05 | Inventory, unverified | Tall final turn outside minimum gate. |
| F06 | Sufficient | Fitting two-turn pair/diffs and equal-height measurements. |
| F07 | Inventory, unverified | Full empty/loading/under-two family not captured. |
| F08 | Inventory, partial | Compact/nine-strip subcases present; mixed/capped/header family absent. |
| F09 | Inventory, unverified | Invalid-state harness alternatives absent. |
| F10 | Sufficient | New F11 B restoration: distance300, Next enabled, correct after highlights. |
| F11 | Sufficient | New exact-head A0 -> B300 -> A0 recording, one natural restore event each direction; AE320 restored highlights disclosed. |
| F12 | Inventory, partial | Initial bottom represented; alternative restoration paths not captured. |
| F13 | Sufficient for settled behavior | Real Replay followed/detached growth recording, plus exact-head following/detached still pairs. AE1562/0; no current transient-latency claim. |
| F14 | Inventory, partial | R01 covers detached height shrink; full disclosure/media/inset/fullscreen family absent. |
| R01 | Sufficient | Retained three-build comparison; zero-scroll resize0 ->400, Next re-enables; observer path unchanged. |
| F15 | Inventory, unverified | Strip preview variants not represented by navigation tooltips. |
| F16 | Inventory, partial | W02 covers focused Enter and disabled focus loss; full key set absent. |
| F17 | Inventory, partial | Wheel/Next represented; full strip/selection/drag family absent. |
| F18 | Sufficient | New exact-head footer RPC growth1662 ->2044, top814 unchanged, ten strips, zero scroll events, after Next disabled ->enabled. Endpoint AE0 as disclosed. |
| W01 | Sufficient | F01/F03, actual gutter352, persistent rail, both themes. |
| W02 | Sufficient | Hover/focus/Enter recording, root14 Wide gutter42/hit30 fine pointer; current bottom/away still pairs AE1238/0. |
| W03 | Inventory, unverified | Narrow hit-area alternatives absent. |
| W04 | Inventory, unverified | Coarse pointer/mobile-web CSS family absent. |
| C01 | Sufficient, labelled harness | Actual GuestPage rendering, bottom/away/Next/bottom; AE1562 only Next. |
| C01-real | Unavailable, accepted limitation | Genuine guest transport needs active Connect; not an extra gate here. |
| C02 | Inventory, unverified | Actual embedded side-chat caller not recorded. |
| C03 | Sufficient additional coverage | Retained real Electron exact-bottom pair; AE396, DPR1; away state not claimed. |
| C04 | Sufficient collapsed representative | Local-web only; remote/relay/tunnel not claimed. |

Both owned preview tabs are closed. Both server runners and their web/server/Replay descendants were stopped using tracked PIDs and verified own port owners/cwds; all four owned ports are closed. Both detached worktrees were clean at their requested commits and removed; no new commits existed. The lead worktree and PR were read-only. Scratch retention was uploaded before deletion. No repository test suite was rerun for this proof audit.

FRICTION:
tool | Python urllib downloads received HTTP403 while curl succeeded; Pillow/numpy were absent from system Python. | Use curl and an isolated image-analysis venv.
runbook | The first seed attempt ran before server startup and exited without a useful message; retry after Listening succeeded. | Gate seeding on the server's Listening line.
tool | preview_evaluate rejected a trailing newline in the supplied script. | Trim script text before evaluation.
VERDICT: SUFFICIENT