diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraArtifact.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraArtifact.kt
index 4248545c..4d66c01e 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraArtifact.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraArtifact.kt
@@ -23,17 +23,19 @@ data class MantraArtifact(
     val license: String,
 //    val artifactApprovalId: String,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
     fun toArtifactEvent(): ArtifactEvent {
         return ArtifactEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 }
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraArtifactVersion.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraArtifactVersion.kt
index d03f06ad..fb15ecab 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraArtifactVersion.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraArtifactVersion.kt
@@ -23,17 +23,19 @@ data class MantraArtifactVersion(
      */
     val versionLabel: String,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
     fun toArtifactVersionEvent(): ArtifactVersionEvent {
         return ArtifactVersionEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 }
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraChapter.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraChapter.kt
index 9ee5aee0..7a4b4976 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraChapter.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraChapter.kt
@@ -23,18 +23,20 @@ data class MantraChapter(
     val wordCount: Int,
     val characterCount: Int,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
 
     fun toChapterEvent(): ChapterEvent {
         return ChapterEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 }
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraChunk.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraChunk.kt
index 0da71028..dbad2cc9 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraChunk.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraChunk.kt
@@ -22,18 +22,20 @@ data class MantraChunk(
     val wordCount: Int,
     val characterCount: Int,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
 
     fun toChunkEvent(): ChunkEvent {
         return ChunkEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 }
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraDialect.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraDialect.kt
index 208cf933..84f44186 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraDialect.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraDialect.kt
@@ -20,18 +20,20 @@ data class MantraDialect(
     val country: String,
     val language: String,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
 
     fun toDialectEvent(): DialectEvent {
         return DialectEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslation.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslation.kt
index c3678572..832dda5a 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslation.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslation.kt
@@ -20,18 +20,20 @@ data class MantraTranslation(
     val translationArtifactVersionId: HexKey,
     val text: String,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
 
     fun toTranslationEvent(): TranslationEvent {
         return TranslationEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 }
\ No newline at end of file
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationArtifactVersion.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationArtifactVersion.kt
index 1d8d25da..fa61f3cd 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationArtifactVersion.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationArtifactVersion.kt
@@ -21,18 +21,20 @@ data class MantraTranslationArtifactVersion(
     val name: String,
     val visibility: String,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
 
     fun toTranslationArtifactVersionEvent(): TranslationArtifactVersionEvent {
         return TranslationArtifactVersionEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 }
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationArtifactVersionEditor.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationArtifactVersionEditor.kt
index 34148be4..427acad3 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationArtifactVersionEditor.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationArtifactVersionEditor.kt
@@ -20,6 +20,8 @@ data class MantraTranslationArtifactVersionEditor(
     val translationArtifactVersionId: HexKey,
     val editorPublicKey: HexKey,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapter.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapter.kt
index 5756e422..7485c8d4 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapter.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapter.kt
@@ -18,17 +18,19 @@ data class MantraTranslationChapter(
     val translationArtifactVersionId: HexKey,
     val index: Int,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
     fun toTranslationChapterEvent(): TranslationChapterEvent {
         return TranslationChapterEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 }
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapterProofReader.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapterProofReader.kt
index 702b7a5d..2f0d58fb 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapterProofReader.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapterProofReader.kt
@@ -20,6 +20,8 @@ data class MantraTranslationChapterProofReader(
     val translationChapterId: HexKey,
     val proofReaderPublicKey: HexKey,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapterTranslator.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapterTranslator.kt
index 1987dc35..768adcbe 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapterTranslator.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChapterTranslator.kt
@@ -20,6 +20,8 @@ data class MantraTranslationChapterTranslator(
     val translationChapterId: HexKey,
     val translatorPublicKey: HexKey,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChunk.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChunk.kt
index 2bc533ce..c6a80910 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChunk.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationChunk.kt
@@ -21,18 +21,20 @@ data class MantraTranslationChunk(
     val chunkId: HexKey,
     val translationChapterId: HexKey,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {
 
     fun toTranslationChunkEvent(): TranslationChunkEvent {
         return TranslationChunkEvent(
-            id = "",
+            id = id,
             pubKey = publicKey,
             createdAt = createdAt.epochSeconds,
             tags = emptyArray(),
             content = "",
-            sig = ""
+            sig = signature
         )
     }
 }
diff --git a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationTranslator.kt b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationTranslator.kt
index 6bee49e6..c0fa9c17 100644
--- a/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationTranslator.kt
+++ b/composeApp/src/commonMain/kotlin/press/mantra/compose/database/model/MantraTranslationTranslator.kt
@@ -20,6 +20,8 @@ data class MantraTranslationTranslator(
     val translationId: HexKey,
     val translatorPublicKey: HexKey,
 
+    val signature: String,
+
     override val createdAt: Instant = Clock.System.now(),
     override val updatedAt: Instant = createdAt
 ): TimestampedEntity {