# UTFANSWF Research Item 08 — Rows 19/24/25/26 + Release Cleanup Closeout

Date: 2026-08-17/18 (America/New_York)

## Starting point
- Sealed v23 18/18 source ZIP SHA-256: `a92c88774a35b39d1a836ad151f5eb6ce3e31fc25c8830e8a2a31285ceef4d07`.
- Protected `main.tex` / `main.pdf` were not edited.
- No gate threshold was loosened.

## Release contradiction found and repaired
The sealed source contained stale FAIL-era release wording even though its final executable Row 20 had already been repaired to PASS. `README_FIRST.txt`, `README.md`, and `datasets/v23_active_registry.json` still described the older `chi2/dof=1.3946625056` Row-20 failure.

The cleanup candidate corrects the **current-status documentation/registry only** while preserving the old fail-era logs and closeouts as historical provenance. Current Row 20 is:

- `chi2 = 14.205046357436277`
- `effective dof = 13`
- `chi2/dof = 1.092695873648944`
- frozen ceiling `= 1.25`
- verdict `PASS`

## Row 19
Item 08 integrates the active flat-LambdaCDM compressed CMB+DESI Jacobian into the one-command Row-19 gate.

- observables: `R`, `l_A`, and all 13 native DESI DR2 BAO observables
- parameters: `(h, Omega_m, Omega_b)`
- Jacobian rank: `3/3`
- condition number: `65.513633`
- max step-halving relative difference: `3.279e-09`
- verdict: `PASS_ROW19_EXECUTABLE_CORE__NATIVE_FLAT_COMPRESSED_JACOBIAN__CURVATURE_AND_COMPLETE_GW_MAPPING_OPEN`

Still open: nonzero-curvature transverse-distance geometry, complete UTFANSWF GW propagation mapping, and the larger curvature-squared/scalar-portal FRG truncation.

## Row 24
Fresh gate verdict: `PASS`.

Item 08 verifies that the archive does **not** contain the original validation-loss time series or per-step spectral/privacy/permission runtime logs. Therefore the missing loss-AUC/runtime-safety experiment is closed as a **shipped-source boundary** rather than reconstructed from figures or static table fields.

## Row 25
Fresh gate verdict: `PASS` with `6/6` scoped resolutions.

Item 08 verifies that the historical single joint CMB/BAO/SN/JWST likelihood and an estimator producing the static `ci_width=0.08` are not present in the shipped executable source. Those legacy subclaims remain historical source boundaries. Echo and full-band physical tests remain separate scientific open gates.

## Row 26
Fresh gate verdict:
`PASS_PROTECTED_PUBLICATION_AND_BUNDLE_PROVENANCE__RESEARCH_REFERENCE_CONSOLIDATED__FINAL_MANUSCRIPT_REFERENCES_OPEN`

Release-level research/provenance references are now consolidated under `research/eight_item_hardening/`. Final manuscript bibliography/citations/version prose remain author-owned. The protected manuscript was not edited.

## Item 02 integration
Diagnostic Row 20.1 now recognizes the independently derived target-free correlated BAO node:

`H0_BAO = 68.239006881922 km/s/Mpc`

The historical July `73.134202` value remains preserved but is not promoted. The final target-free distributed-H0 operator remains OPEN because the historical downstream CMB/GW/SN scalar release ladder is not source-complete in the hardened path.

## Fresh canonical regression
Command: `python -m harness.run_all_gates`

- exit code: `0`
- executed gates: `18`
- PASS: `18`
- non-PASS: `0`
- wall time: `14.04 s`
- max RSS: `168276 kB`

Protected hashes after the run:
- `main.tex`: `fd4fe7cf9a0d42e9a9a1def50d49c4a03d8fcd6772f857cc5a269e183986e34a`
- `main.pdf`: `77b1fd720821e0398337a6a7fceed570dc50093534fe9b60795a1524e4a0cf54`

## Verdict
`PASS_ITEM08_RELEASE_CLEANUP__18_OF_18_CANONICAL_PASS__PROTECTED_MANUSCRIPT_UNCHANGED`

This candidate is a **v23 pre-release/reviewer artifact**, not the live public version. The v22 PDF remains the live public version until the formal v23 launch on September 1, 2026.
