diff --git a/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistMemory/HyperTwistMemoryCoreLibrary.cpp b/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistMemory/HyperTwistMemoryCoreLibrary.cpp
index 4451e56..401686b 100644
--- a/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistMemory/HyperTwistMemoryCoreLibrary.cpp
+++ b/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistMemory/HyperTwistMemoryCoreLibrary.cpp
@@ -177,8 +177,85 @@ namespace HyperTwistMemoryCoreLibraryInternal
 		}
 	}
 
-	bool FHyperTwistMemoryLedgerState::IsStructurallyValid() const
+	bool IsConfidenceScoreInRange(const int32 Value)
 	{
+		return Value >= 0 && Value <= 100;
+	}
+
+	bool HasValidProvenanceLinks(
+		const TArray<FHyperTwistMemoryProvenanceLink>& ProvenanceLinks
+	)
+	{
+		return ProvenanceLinks.Num() > 0
+			&& HyperTwistMemoryCoreLibraryInternal::AreAllItemsStructurallyValid(
+				ProvenanceLinks);
+	}
+}
+
+bool FHyperTwistMemoryCognitiveFact::IsStructurallyValid() const
+{
+	return !FactId.IsEmpty()
+		&& !FactFamily.IsEmpty()
+		&& !FactKind.IsEmpty()
+		&& !Headline.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& Lane == EHyperTwistMemoryLane::CognitiveConsolidated
+		&& AuthorityKind != EHyperTwistMemoryAuthorityKind::None
+		&& SourceEntityIds.Num() > 0
+		&& !SummaryLine.IsEmpty()
+		&& HyperTwistMemoryCoreLibraryInternal::IsConfidenceScoreInRange(
+			ConfidenceScore)
+		&& EvidenceCount > 0
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryCognitiveContradiction::IsStructurallyValid() const
+{
+	return !ContradictionId.IsEmpty()
+		&& !FactFamily.IsEmpty()
+		&& !Headline.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& !LeftFactId.IsEmpty()
+		&& !RightFactId.IsEmpty()
+		&& !ResolutionLabel.IsEmpty()
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryCognitiveSupersession::IsStructurallyValid() const
+{
+	return !SupersessionId.IsEmpty()
+		&& !FactFamily.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& !PriorFactId.IsEmpty()
+		&& !CurrentFactId.IsEmpty()
+		&& !ReasonLabel.IsEmpty()
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryConfidenceDecayEntry::IsStructurallyValid() const
+{
+	return !DecayId.IsEmpty()
+		&& !FactId.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& !TriggerLabel.IsEmpty()
+		&& HyperTwistMemoryCoreLibraryInternal::IsConfidenceScoreInRange(
+			PreviousConfidenceScore)
+		&& HyperTwistMemoryCoreLibraryInternal::IsConfidenceScoreInRange(
+			CurrentConfidenceScore)
+		&& CurrentConfidenceScore < PreviousConfidenceScore
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryLedgerState::IsStructurallyValid() const
+{
 		if (UserId.IsEmpty()
 			|| ReferenceUtc.IsEmpty()
 			|| LaneContracts.Num() == 0
@@ -201,10 +278,10 @@ namespace HyperTwistMemoryCoreLibraryInternal
 		const int32 TotalEntityCount =
 			AuthoritativeEntityCount + SemiAuthoritativeEntityCount + DerivedEntityCount;
 		return TotalEntityCount == Entities.Num();
-	}
+}
 
-	bool FHyperTwistMemoryChronicleContinuityState::IsStructurallyValid() const
-	{
+bool FHyperTwistMemoryChronicleContinuityState::IsStructurallyValid() const
+{
 		if (UserId.IsEmpty()
 			|| ReferenceUtc.IsEmpty()
 			|| (ChronicleEvents.Num() == 0
@@ -260,10 +337,10 @@ namespace HyperTwistMemoryCoreLibraryInternal
 			&& OpenSessionGroupCount == ComputedOpenSessionGroupCount
 			&& ResumeRequiredCount == ResumePacks.Num()
 			&& BlockingGuardCount == ComputedBlockingGuardCount;
-	}
+}
 
-	bool FHyperTwistMemoryRecallSharedContextState::IsStructurallyValid() const
-	{
+bool FHyperTwistMemoryRecallSharedContextState::IsStructurallyValid() const
+{
 		if (UserId.IsEmpty()
 			|| ReferenceUtc.IsEmpty()
 			|| QueryText.IsEmpty()
@@ -304,10 +381,10 @@ namespace HyperTwistMemoryCoreLibraryInternal
 			&& SemiAuthoritativeRecallCount == ComputedSemiAuthoritativeRecallCount
 			&& SharedContextProjectionCount == SharedContextProjections.Num()
 			&& bHasScopedSharedContext == (SharedContextProjections.Num() > 0);
-	}
+}
 
-	bool FHyperTwistMemoryCognitiveConsolidationState::IsStructurallyValid() const
-	{
+bool FHyperTwistMemoryCognitiveConsolidationState::IsStructurallyValid() const
+{
 		if (UserId.IsEmpty() || ReferenceUtc.IsEmpty() || Facts.Num() == 0)
 		{
 			return false;
@@ -362,10 +439,59 @@ namespace HyperTwistMemoryCoreLibraryInternal
 			&& ContradictionCount == Contradictions.Num()
 			&& LowConfidenceFactCount == ComputedLowConfidenceFactCount
 			&& bHasOpenCognitiveReview == bComputedOpenCognitiveReview;
+}
+
+bool FHyperTwistMemoryKnowledgeObject::IsStructurallyValid() const
+{
+	return !ObjectId.IsEmpty()
+		&& !ObjectKind.IsEmpty()
+		&& !Title.IsEmpty()
+		&& !Summary.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& Lane == EHyperTwistMemoryLane::KnowledgeWiki
+		&& AuthorityKind == EHyperTwistMemoryAuthorityKind::Authoritative
+		&& !ScopeLabel.IsEmpty()
+		&& SourceRecordIds.Num() > 0
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryKnowledgePromotionReview::IsStructurallyValid() const
+{
+	return !ReviewId.IsEmpty()
+		&& !CandidateFactId.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& !Headline.IsEmpty()
+		&& Decision != EHyperTwistMemoryKnowledgePromotionDecision::None
+		&& !ReasonLabel.IsEmpty()
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryUserNotesPosture::IsStructurallyValid() const
+{
+	const bool bCoreFieldsPresent = !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& Lane == EHyperTwistMemoryLane::UserNotes
+		&& !GateId.IsEmpty()
+		&& !SettingsKey.IsEmpty()
+		&& !Headline.IsEmpty()
+		&& !SummaryLine.IsEmpty()
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+	if (!bCoreFieldsPresent)
+	{
+		return false;
 	}
 
-	bool FHyperTwistMemoryDerivedAdjunctState::IsStructurallyValid() const
-	{
+	return !bAcceptsUserAuthoredContent
+		|| (bOwnershipJustified && bLaneEnabled);
+}
+
+bool FHyperTwistMemoryDerivedAdjunctState::IsStructurallyValid() const
+{
 		if (UserId.IsEmpty()
 			|| ReferenceUtc.IsEmpty()
 			|| ContextAssemblyProfile == EHyperTwistMemoryContextAssemblyProfile::None
@@ -406,10 +532,58 @@ namespace HyperTwistMemoryCoreLibraryInternal
 		return CompactSummaryCount == 0
 			&& ReducedContextPacketCount == 0
 			&& DigestViewCount == 0;
-	}
+}
 
-	bool FHyperTwistMemoryKnowledgeNotesState::IsStructurallyValid() const
-	{
+bool FHyperTwistMemoryCompactSummary::IsStructurallyValid() const
+{
+	return !SummaryId.IsEmpty()
+		&& !SummaryKind.IsEmpty()
+		&& !Headline.IsEmpty()
+		&& !SummaryText.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& Lane == EHyperTwistMemoryLane::DerivedCompacted
+		&& AuthorityKind == EHyperTwistMemoryAuthorityKind::DerivedOnly
+		&& SourceEntityIds.Num() > 0
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryReducedContextPacket::IsStructurallyValid() const
+{
+	return !PacketId.IsEmpty()
+		&& !PacketKind.IsEmpty()
+		&& !Headline.IsEmpty()
+		&& !PacketBody.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& Lane == EHyperTwistMemoryLane::DerivedCompacted
+		&& AuthorityKind == EHyperTwistMemoryAuthorityKind::DerivedOnly
+		&& MaxTokenHint > 0
+		&& SourceEntityIds.Num() > 0
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryDigestView::IsStructurallyValid() const
+{
+	return !DigestId.IsEmpty()
+		&& !DigestKind.IsEmpty()
+		&& !Title.IsEmpty()
+		&& !SummaryLine.IsEmpty()
+		&& !UserId.IsEmpty()
+		&& !ReferenceUtc.IsEmpty()
+		&& Lane == EHyperTwistMemoryLane::DerivedCompacted
+		&& AuthorityKind == EHyperTwistMemoryAuthorityKind::DerivedOnly
+		&& bUserVisible
+		&& bRemovable
+		&& SourceEntityIds.Num() > 0
+		&& HyperTwistMemoryCoreLibraryInternal::HasValidProvenanceLinks(
+			ProvenanceLinks);
+}
+
+bool FHyperTwistMemoryKnowledgeNotesState::IsStructurallyValid() const
+{
 		if (UserId.IsEmpty()
 			|| ReferenceUtc.IsEmpty()
 			|| KnowledgeObjects.Num() == 0
@@ -438,7 +612,10 @@ namespace HyperTwistMemoryCoreLibraryInternal
 			&& ComputedPromotionCount == PromotionReviews.Num()
 			&& bKnowledgeWikiEnabled
 			&& bUserNotesLaneAvailable == bComputedUserNotesLaneAvailable;
-	}
+}
+
+namespace HyperTwistMemoryCoreLibraryInternal
+{
 
 	void AddChronicleEvent(
 		FHyperTwistMemoryChronicleContinuityState& ChronicleContinuityState,
diff --git a/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistMemory/HyperTwistMemoryTypes.h b/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistMemory/HyperTwistMemoryTypes.h
index 778b737..e8a2945 100644
--- a/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistMemory/HyperTwistMemoryTypes.h
+++ b/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistMemory/HyperTwistMemoryTypes.h
@@ -1005,36 +1005,7 @@ struct FHyperTwistMemoryCognitiveFact
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (FactId.IsEmpty()
-			|| FactFamily.IsEmpty()
-			|| FactKind.IsEmpty()
-			|| Headline.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| Lane != EHyperTwistMemoryLane::CognitiveConsolidated
-			|| AuthorityKind == EHyperTwistMemoryAuthorityKind::None
-			|| SourceEntityIds.Num() == 0
-			|| SummaryLine.IsEmpty()
-			|| ConfidenceScore < 0
-			|| ConfidenceScore > 100
-			|| EvidenceCount <= 0
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1075,31 +1046,7 @@ struct FHyperTwistMemoryCognitiveContradiction
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (ContradictionId.IsEmpty()
-			|| FactFamily.IsEmpty()
-			|| Headline.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| LeftFactId.IsEmpty()
-			|| RightFactId.IsEmpty()
-			|| ResolutionLabel.IsEmpty()
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1134,30 +1081,7 @@ struct FHyperTwistMemoryCognitiveSupersession
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (SupersessionId.IsEmpty()
-			|| FactFamily.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| PriorFactId.IsEmpty()
-			|| CurrentFactId.IsEmpty()
-			|| ReasonLabel.IsEmpty()
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1192,33 +1116,7 @@ struct FHyperTwistMemoryConfidenceDecayEntry
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (DecayId.IsEmpty()
-			|| FactId.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| TriggerLabel.IsEmpty()
-			|| PreviousConfidenceScore < 0
-			|| PreviousConfidenceScore > 100
-			|| CurrentConfidenceScore < 0
-			|| CurrentConfidenceScore > 100
-			|| CurrentConfidenceScore >= PreviousConfidenceScore
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1304,33 +1202,7 @@ struct FHyperTwistMemoryKnowledgeObject
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (ObjectId.IsEmpty()
-			|| ObjectKind.IsEmpty()
-			|| Title.IsEmpty()
-			|| Summary.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| Lane != EHyperTwistMemoryLane::KnowledgeWiki
-			|| AuthorityKind != EHyperTwistMemoryAuthorityKind::Authoritative
-			|| ScopeLabel.IsEmpty()
-			|| SourceRecordIds.Num() == 0
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1372,30 +1244,7 @@ struct FHyperTwistMemoryKnowledgePromotionReview
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (ReviewId.IsEmpty()
-			|| CandidateFactId.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| Headline.IsEmpty()
-			|| Decision == EHyperTwistMemoryKnowledgePromotionDecision::None
-			|| ReasonLabel.IsEmpty()
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1439,32 +1288,7 @@ struct FHyperTwistMemoryUserNotesPosture
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| Lane != EHyperTwistMemoryLane::UserNotes
-			|| GateId.IsEmpty()
-			|| SettingsKey.IsEmpty()
-			|| Headline.IsEmpty()
-			|| SummaryLine.IsEmpty()
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return bAcceptsUserAuthoredContent
-			? (bOwnershipJustified && bLaneEnabled)
-			: true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1544,32 +1368,7 @@ struct FHyperTwistMemoryCompactSummary
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (SummaryId.IsEmpty()
-			|| SummaryKind.IsEmpty()
-			|| Headline.IsEmpty()
-			|| SummaryText.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| Lane != EHyperTwistMemoryLane::DerivedCompacted
-			|| AuthorityKind != EHyperTwistMemoryAuthorityKind::DerivedOnly
-			|| SourceEntityIds.Num() == 0
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1611,33 +1410,7 @@ struct FHyperTwistMemoryReducedContextPacket
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (PacketId.IsEmpty()
-			|| PacketKind.IsEmpty()
-			|| Headline.IsEmpty()
-			|| PacketBody.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| Lane != EHyperTwistMemoryLane::DerivedCompacted
-			|| AuthorityKind != EHyperTwistMemoryAuthorityKind::DerivedOnly
-			|| MaxTokenHint <= 0
-			|| SourceEntityIds.Num() == 0
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
@@ -1682,34 +1455,7 @@ struct FHyperTwistMemoryDigestView
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "HyperTwist")
 	TArray<FHyperTwistMemoryProvenanceLink> ProvenanceLinks;
 
-	bool IsStructurallyValid() const
-	{
-		if (DigestId.IsEmpty()
-			|| DigestKind.IsEmpty()
-			|| Title.IsEmpty()
-			|| SummaryLine.IsEmpty()
-			|| UserId.IsEmpty()
-			|| ReferenceUtc.IsEmpty()
-			|| Lane != EHyperTwistMemoryLane::DerivedCompacted
-			|| AuthorityKind != EHyperTwistMemoryAuthorityKind::DerivedOnly
-			|| !bUserVisible
-			|| !bRemovable
-			|| SourceEntityIds.Num() == 0
-			|| ProvenanceLinks.Num() == 0)
-		{
-			return false;
-		}
-
-		for (const FHyperTwistMemoryProvenanceLink& ProvenanceLink : ProvenanceLinks)
-		{
-			if (!ProvenanceLink.IsStructurallyValid())
-			{
-				return false;
-			}
-		}
-
-		return true;
-	}
+	bool IsStructurallyValid() const;
 };
 
 USTRUCT(BlueprintType)
diff --git a/docs/v6_5_deep_manual_pack/HyperTwist/DEVELOPMENT.md b/docs/v6_5_deep_manual_pack/HyperTwist/DEVELOPMENT.md
index 96e041e..508cae8 100644
--- a/docs/v6_5_deep_manual_pack/HyperTwist/DEVELOPMENT.md
+++ b/docs/v6_5_deep_manual_pack/HyperTwist/DEVELOPMENT.md
@@ -634,6 +634,57 @@ Latest same-day browser/distribution continuity follow-up still on `2026-06-24`:
 
 ## Canonical development authorities
 
+Latest later memory-header follow-up still on `2026-06-25`:
+
+- the next bounded memory-family refactor packet then moved the larger
+  cognitive, knowledge, and derived-record validators out of
+  `Public/HyperTwistMemory/HyperTwistMemoryTypes.h` and into
+  `Private/HyperTwistMemory/HyperTwistMemoryCoreLibrary.cpp` for:
+  - `FHyperTwistMemoryCognitiveFact::IsStructurallyValid()`
+  - `FHyperTwistMemoryCognitiveContradiction::IsStructurallyValid()`
+  - `FHyperTwistMemoryCognitiveSupersession::IsStructurallyValid()`
+  - `FHyperTwistMemoryConfidenceDecayEntry::IsStructurallyValid()`
+  - `FHyperTwistMemoryKnowledgeObject::IsStructurallyValid()`
+  - `FHyperTwistMemoryKnowledgePromotionReview::IsStructurallyValid()`
+  - `FHyperTwistMemoryUserNotesPosture::IsStructurallyValid()`
+  - `FHyperTwistMemoryCompactSummary::IsStructurallyValid()`
+  - `FHyperTwistMemoryReducedContextPacket::IsStructurallyValid()`
+  - `FHyperTwistMemoryDigestView::IsStructurallyValid()`
+- the private memory core now also owns the new shared scalar and provenance
+  helpers:
+  - `IsConfidenceScoreInRange(...)`
+  - `HasValidProvenanceLinks(...)`
+- the authoritative Windows Unreal lane caught a real refactor mistake on the
+  first rerun:
+  - the initial remote rebuild failed because the new record validators were
+    still placed inside the helper namespace
+  - the slice was repaired immediately, re-synced to the maintained validation
+    root, and rerun cleanly instead of treating that failed pass as acceptable
+- `scripts/run-hypertwist-sentrux-source-only.sh` then improved again to:
+  - `Quality: 6211`
+  - all `7` rules passing
+- `scripts/run-hypertwist-gitnexus-analyze.sh` then refreshed the bounded
+  source-only mirror again at:
+  - `16,257` nodes
+  - `38,063` edges
+  - `668` clusters
+  - `300` flows
+- the doctrine-clean Windows Unreal rerun against
+  `C:\HyperTwist_worktrees\phase10validate` then succeeded after the repair:
+  - `Result: Succeeded`
+  - parallel executor time `78.40 seconds`
+  - total execution time `85.25 seconds`
+- the current largest remaining inline validators now shift to:
+  - `36` lines in `Public/HyperTwistSimulation/HyperTwistViewerTypes.h`
+  - `30` lines in `Public/HyperTwistRecognition/HyperTwistRecognitionTypes.h`
+  - `27` lines for `FHyperTwistMemoryRecallMatch`
+  - `26` lines for `FHyperTwistMemoryResumePack`
+- current truthful “vanilla refactor” reading tightens again:
+  - the larger cognitive/knowledge/derived memory-record cluster is now drained
+  - remaining structural cleanup is now a choice between the viewer family, the
+    recognition family, or smaller remaining memory seams rather than another
+    obvious large memory-header block
+
 Use these before widening implementation:
 
 - `ROADMAP.md` for current queue truth