# Round 3 bounded gap handoff — partial, independent audit pending

Replacement [#24583](https://github.com/pingdotgg/t3code/pull/24583), original [#19570](https://git.cafe/pingdotgg/t3code/pulls/19570). Head [e810a33](https://github.com/pingdotgg/t3code/commit/e810a33cf8114e5c4e76eeffe8ea299ef8466b71), base [3cc31ed](https://github.com/pingdotgg/t3code/commit/3cc31ed27c8956b36cee35a50509fb7c6869592b).
Append-only delivery; prior first24pairs and round2 78pairs are untouched. Round2 still awaits its separate audit. This is not merge readiness or full coverage.

## Exact new status

| Row | New credited candidate evidence | Still unverified / no new paired credit |
|---|---|---|
| R3 | Empty cached detail syncing and recovered,1440 light; empty syncing1440 dark. Three matched pairs,12 settled stills,6 masks. Head cursor108→absent, two attempts, genuine snapshot release clears sync; base remains syncing. Sidebar delta0. | Empty recovered1440 dark failed500ms repeat and reset n=0; excluded. Other R3 controls untouched. |
| R4 | None. Head legacy1440 light/dark attempts retained, but no valid matched base pair. | Both1440 legacy; bounded-history recovery/Load earlier/no duplicates; warm/cold protocol controls. |
| C1 | None. Base-only expected/auth1440 attempts retained, no paired head. | Expected/auth1440 light/dark and untouched controls. |
| R5 | None. Earlier rounds remain as previously indexed. | New-session fallback390 light/dark,1440 dark; buffered resume and terminal races; actual disposal/interrupt/isolation paired proof. |
| Native | Not this task; no native activity by this worker. | Separate worker owns native. |

All three new pairs are **candidates pending independent audit**. No credit is inferred from filenames or attempted scripts. The one other final paired gate (dark recovered) is rejected. Initial sidebar-drift/splash/timeout attempts are rejected even where images are retained.

## Method and material limits

Headed Chromium1223/Xvfb, DPR1/scale1, no device emulation,1440x900, light/dark, frozen Date2026-10-24T23:10:00Z, reduced motion/fonts ready/equal CSS suppression. Full frames repeat500ms apart. Two masks: every RGB delta amplified magenta, max-channel>16 yellow. No crop, exclusions, registration or masking. Sidebar scroll normalized equally by real scrollTop0; no source data or rendered state edits. The3valid screenshots/contact sheets were inspected. Six recordings fully decoded with exit0 and extracted frames inspected; movies include rejected setup, splash and pairing phases and are not independent proof of rows.

Reused existing round2 external driver, stream injector, retained base transforms and fixed fully seeded SQLite fixture. New home/tmp/ev-19570/round3-home, unique22374/14334,CDP9231/9232,displays231/232. Never used ~/.t3/userdata. All10retained actually loaded changed source responses independently rehashed against exact git source and matched. Later pairing navigation overwrote the head manifest with a partial module list; retained-source-verification.json discloses this and rechecks each retained response. Original manifest timing is not reconstructed. Five changed modules per side remain retained.

CPU overload (app reported load29 on4cores), screenshot/navigation timeouts and head auth loss consumed the window. Shared refresh-session invalidation is an inference, not a proved cause. Head returned to pairing; subsequent head chapters rejected. Independent credential retry ended with Target page, context or browser has been closed, no extra credit. Do not share refresh sessions on reproduction: use independent one-time pairing per browser. No further setup attempted.

## Public artifacts

[reproduction.tar.gz](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/3adac0bcf1398478/reproduction.tar.gz)
[captures-and-diffs.tar.gz](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/acf283311004ca6c/captures-and-diffs.tar.gz)
[inspection.tar.gz](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/8bd4353881e38194/inspection.tar.gz)
[recordings.tar.gz](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/0c795f2e9f2deadc/recordings.tar.gz)

![final-R3-empty-sync-recovered-1440-light.jpg](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/aa2de568daf5d0b7/final-R3-empty-sync-recovered-1440-light.jpg)
[FRICTION.txt](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/f5b7f399641cf7b6/FRICTION.txt)
[retained-source-verification.json](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/019e29f970a1263d/retained-source-verification.json)
[cleanup.json](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/eaaca102088c86c9/cleanup.json)


## Candidate measurements

- final-R3-empty-sync-recovered-1440-light: sidebar0; allRGB 24855pixels; >16 2952pixels; both repeats exact.
- final-R3-empty-syncing-1440-dark: sidebar0; allRGB 0pixels; >16 0pixels; both repeats exact.
- final-R3-empty-syncing-1440-light: sidebar0; allRGB 144pixels; >16 0pixels; both repeats exact.

## Retention and cleanup

Local delivery/tmp/ev-19570/delivery-round3; working evidence/tmp/ev-19570/round3; private isolated home/tmp/ev-19570/round3-home retained for audit. Scripts in reproduction archive; drivers retained in head/public and base/public. Archives exclude credentials/browser state/private startup logs. README describes initial attempts; independent pairing correction above takes precedence. Traces carry actual timestamps/inputs/gates, before/after state and stream causes; no trace from an untouched control is invented.

Own captured task PIDs/process groups stopped;22374,14334,9231,9232 verified closed. Auditor/native processes untouched. Git status clean; no source edits, commits, pushes, PR body/comments or watchers. Finished before requested00:40UTC deadline. This index is a new artifact and does not replace any prior artifact.