UTFANSWF v22 — PRIVATE / POST-RELEASE ROWS 27–28 EXECUTABLE EXTENSION

This working copy preserves main.tex and main.pdf byte-for-byte.
They were NOT edited during Rows 27–28 integration.

Existing baseline:
  Rows 19–26 remain semantically unchanged.

Row 27 — fine_structure_blind_checkpoint
  Context: POST_RELEASE_RESEARCH
  Verdict: PASS when integrity/blindness checks pass
  Scope: preserves alpha^-1(0)=137.03735243 as a legitimate blind intermediate checkpoint,
         verifies the frozen August 14 verification bundle, and keeps the final source-complete
         electroweak handoff explicitly OPEN.

Row 28 — proton_stability_z6
  Context: PRIVATE_RESEARCH
  Verdict: PASS
  Status: PASS_PROTON_STABILITY__UV_ALPHA_BOUNDARY_OPEN

Run everything with one command:
  python -m harness.run_all_gates

Standalone:
  python -m harness.gate_row27_fine_structure
  python -m harness.gate_row28_proton_stability

Important separation:
  - Row 27 does not claim a final solved 1/137 value or completed independent verification.
  - Row 28 preserves the exact-Z6 structural proton-stability candidate.
  - Row 28's primitive alpha_U^-1 = 8*pi blind UV diagnostic remains a separate near-fail (~1.14564%).
  - No DeltaB=3 / trinucleon lifetime is claimed because its Wilson coefficient/scale is not fixed.

Manuscript support:
  docs/ROW28_MAIN_TEX_CHANGE_SHEET.md remains READ-ONLY guidance for Ron.
  main.tex was not modified.

AUGUST 19, 2026 RESEARCH OVERLAY NOTE
--------------------------------------
Rows 27 and 28 remain preserved under their historical executable scopes. The newer Frog closeout under research/frog_closeout/ supersedes only the current research-board interpretation. It does not retroactively alter the stored Row 27/28 outputs.

