diff --git a/crates/conceptweave-zotero/tests/review_contract.rs b/crates/conceptweave-zotero/tests/review_contract.rs
index e0890264..1ba1c785 100644
--- a/crates/conceptweave-zotero/tests/review_contract.rs
+++ b/crates/conceptweave-zotero/tests/review_contract.rs
@@ -20,34 +20,43 @@ fn item(key: &str, title: &str, doi: &str) -> ZoteroItem {
 #[test]
 fn steward_abstention_reason_is_explicit_and_deterministic() {
     let blank = item("A", "", "");
-    let multilingual = item("B", "온톨로지 정렬", "");
-    let unmatched = item("C", "Other evidence", "");
-    let matched = item("D", "Ontology alignment", "");
+    let multilingual = [
+        ("B", "온톨로지 정렬"),
+        ("C", "オントロジーアラインメント"),
+        ("D", "本体对齐"),
+        ("E", "căn chỉnh bản thể"),
+        ("F", "alineación de ontologías"),
+        ("G", "Ontologie-Ausrichtung für Wissensgraphen"),
+        ("H", "alignement d’ontologies sémantiques"),
+    ]
+    .map(|(key, title)| item(key, title, ""));
+    let unmatched = item("I", "Other evidence", "");
+    let matched = item("J", "Ontology alignment", "");
 
-    let report = classify_snapshot(
-        "9.0.6".into(),
-        None,
-        42,
-        vec![blank, multilingual, unmatched, matched],
-    );
+    let report = classify_snapshot("9.0.6".into(), None, 42, {
+        let mut items = vec![blank];
+        items.extend(multilingual);
+        items.extend([unmatched, matched]);
+        items
+    });
 
     assert_eq!(
         report.classified_items[0].abstention_reason,
         Some(AbstentionReason::MissingClassificationMetadata)
     );
+    assert!(report.classified_items[1..=7].iter().all(|item| {
+        item.proposed_disposition == Disposition::NeedsStewardReview
+            && item.abstention_reason == Some(AbstentionReason::UnsupportedRuleVocabulary)
+    }));
     assert_eq!(
-        report.classified_items[1].abstention_reason,
-        Some(AbstentionReason::UnsupportedRuleVocabulary)
-    );
-    assert_eq!(
-        report.classified_items[2].abstention_reason,
+        report.classified_items[8].abstention_reason,
         Some(AbstentionReason::NoDeterministicRuleMatch)
     );
     assert_eq!(
-        report.classified_items[3].proposed_disposition,
+        report.classified_items[9].proposed_disposition,
         Disposition::AlignmentVersioning
     );
-    assert_eq!(report.classified_items[3].abstention_reason, None);
+    assert_eq!(report.classified_items[9].abstention_reason, None);
 }
 
 #[test]
diff --git a/docs/product-technical-gap-baseline.md b/docs/product-technical-gap-baseline.md
index 01db27c8..a2274451 100644
--- a/docs/product-technical-gap-baseline.md
+++ b/docs/product-technical-gap-baseline.md
@@ -89,6 +89,26 @@ Remaining work: mandatory adoption by restoration, worksheet, duplicate and writ
 
 ## DDD fitness constraints
 
+### PR #16 multilingual successor verification (2026-09-06)
+
+Baseline `044018cef4e5d3e919b278a1cfebe56857863601` passed 87 tests/19 suites.
+Normal merge `4f3ac52a27ff1090b94c63ff807ddb5bd9ce872f` retains that entire delta
+and parent `42ddd81adf8d994f67a30f0c6b8383d637073c72`. Production source is identical
+to the repaired parent; `review_contract.rs` is identical to the prior PR #16.
+An independent static review confirmed all seven non-English cases, English
+match, blank metadata and unmatched metadata remain without reduced assertions.
+This is abstention safety, not multilingual classification or completed research.
+
+Exact merged source passed 109 tests/19 result suites including three doctests,
+strict all-target Clippy, warnings-denied rustdoc, format, CI-contract and diff
+checks, plus the unchanged coverage gate: 185/185 functions, 1770/1770 normalized
+regions and 320/320 normalized branches. Raw LLVM remains 1998/2050 lines,
+2934/3014 regions and 280/320 branches, not 100%. Logs use the
+`/tmp/conceptweave-pr16-scope-` prefix (`baseline`, `final`, `clippy`, `rustdoc`,
+`coverage`, each with `.log`). No new production code, live write, paper decision,
+approval, protected merge or release is claimed. Next owner is PR #17 authenticated
+transport; it must preserve required bindings and indeterminate-request semantics.
+
 ### PR #15 execution-scope and uncertainty repair (2026-09-06)
 
 Baseline `45e9c493` passed 87 tests/19 result suites; normal merge `2887f70`