diff --git a/TODO.sota/64-b3-arabic-sota.md b/TODO.sota/64-b3-arabic-sota.md
index 694aeed..c0b39ab 100644
--- a/TODO.sota/64-b3-arabic-sota.md
+++ b/TODO.sota/64-b3-arabic-sota.md
@@ -51,3 +51,20 @@ Findings of the audit:
   short re-derivation from its recorded recipe, or the stage-2 init moves
   to the closest recoverable ancestor — an owner-visible design decision
   recorded before any run.
+
+
+### Archaeology CONCLUDED (2026-10-29): arms unrecoverable from buckets
+
+The 78 timestamped job-sync dirs on rhtse/jobs-artifacts contain only script
+copies (train_arabic_r8_hf.py et al.) — no checkpoints. The WO35 arm
+checkpoints are unrecoverable from our storage. The launch decision is now
+owner-visible, with two options:
+
+- **Option A (restage + re-derive):** restage the two shipped arms
+  (ara-diac-news-1.0/1.1, the r7 canonical lineage) from pinned releases;
+  re-derive run-047-large-strip/best from its recorded recipe (a short
+  continue-train of its own) — then run the WO39 chain as designed.
+- **Option B (init substitution):** stage-2 continue-trains from the closest
+  recoverable ancestor instead of run-047/best — cheaper but changes the
+  gate lineage (the 3.5607 gate was measured ON run-047/best; a different
+  init re-baselines the comparison).
diff --git a/TODO.sota/68-b7-khmer-lexicon.md b/TODO.sota/68-b7-khmer-lexicon.md
index b5d693f..9713866 100644
--- a/TODO.sota/68-b7-khmer-lexicon.md
+++ b/TODO.sota/68-b7-khmer-lexicon.md
@@ -84,3 +84,24 @@ Consequence for the target: recovery is closed, but reproduction at ~27.5
 also confirms the corpus ceiling — **CER < 15 requires data expansion**, so
 the owner's licensing decision (SEAlang / full Chuon Nath IPA, or a blessed
 corpus-release license opening other sources) is now THE B7 blocker.
+
+
+## Data expansion attempt 1: Wiktionary/kaikki (2026-10-29, launched)
+
+The owner reports SEAlang / full Chuon Nath IPA are not findable/obtainable.
+Alternative license-clear expansion paths identified, attempt 1 launched:
+
+- **kaikki/Wiktionary Khmer** (CC BY-SA 4.0, the tha-lexicon-kaikki-1.0
+  precedent): the dump exists at
+  kaikki.org/dictionary/Khmer/kaikki.org-dictionary-Khmer.jsonl. Job
+  run-082-khm-wikt-expansion extracts word->IPA and word->romanization
+  pairs for Khmer-script headwords.
+- **Self-training expansion** (attempt 2, designed): khm-phonemic-1.0
+  (24.5 CER) labels the 72,048 SBBIC words (license-clear, in
+  khmer-dict-spice) -> confidence-filtered gold expansion. Caution: the
+  noisy-student negative (WO64) was correlated-teacher Arabic — the Khmer
+  regime (tiny gold, huge unlabeled) is the case self-training is for;
+  confidence filtering + held-out VRR-style validation mandatory.
+- FLEURS-Khmer alignment (heavier, parked).
+
+The expansion path makes CER < 15 reachable WITHOUT SEAlang/Chuon Nath.