diff --git a/Modules/DTN/shared/src/main/scala/dtn/RdtCreation.scala b/Modules/DTN/shared/src/main/scala/dtn/RdtCreation.scala
index 94683638d..bfa6875df 100644
--- a/Modules/DTN/shared/src/main/scala/dtn/RdtCreation.scala
+++ b/Modules/DTN/shared/src/main/scala/dtn/RdtCreation.scala
@@ -1,6 +1,6 @@
 package dtn
 
-import _root_.replication.DataManager
+import _root_.replication.{DataManager, ProtocolDots}
 import rdts.base.LocalUid
 import dtn.rdt.Channel
 import _root_.replication.JsoniterCodecs.given
@@ -10,6 +10,10 @@ import com.github.plokhotnyuk.jsoniter_scala.macros.CodecMakerConfig
 import dtn.rdt.ClientOperationMode
 import rdts.datatypes.alternatives.ObserveRemoveSet
 import scala.util.Random
+import rdts.dotted.Obrem
+import rdts.datatypes.contextual.ObserveRemoveMap
+import rdts.time.Dot
+import rdts.base.Lattice
 
 trait CaseStudyRdt {
   def connect(
@@ -75,18 +79,35 @@ class AddWinsSetRDT(number_of_additions: Int, sleep_time_milliseconds: Long) ext
 }
 
 class ObserveRemoveSetRDT(number_of_changes: Int, sleep_time_milliseconds: Long) extends CaseStudyRdt {
-  type RdtType = ObserveRemoveSet[String]
+  type RdtType = Obrem[ObserveRemoveMap[String, Dot]]
 
   given JsonValueCodec[RdtType] = JsonCodecMaker.make(CodecMakerConfig.withMapAsArray(true))
 
+  given Lattice[Dot] = Lattice.assertEquals
+
+  given replicaId: LocalUid = LocalUid.gen()
+
   val dataManager: DataManager[RdtType] = DataManager[RdtType](
-    LocalUid.gen(),
+    replicaId,
     state =>
       println("replica received new state information"), // we ignore state updates as there will be only one active rdt
     _ => ()
   )
 
-  var state: RdtType = ObserveRemoveSet.empty[String]
+  var state: RdtType = Obrem(ObserveRemoveMap.empty[String, Dot])
+
+  private def addStringGetDelta(s: String): RdtType = {
+    state.mod { ctx ?=> current =>
+      val nextDot = ctx.nextDot(dataManager.replicaId.uid)
+      current.update(s, nextDot)
+    }
+  }
+
+  private def removeStringGetDelta(s: String): RdtType = {
+    state.mod { ctx ?=> current =>
+      current.remove(s)
+    }
+  }
 
   def connect(
       host: String,
@@ -119,17 +140,17 @@ class ObserveRemoveSetRDT(number_of_changes: Int, sleep_time_milliseconds: Long)
     for i <- 0 to number_of_changes do {
       Thread.sleep(sleep_time_milliseconds)
 
-      var delta = state.add(s"hello world ${i} from ${dataManager.replicaId}")
+      var delta = addStringGetDelta(s"hello world ${i} from ${dataManager.replicaId}")
       state = state.merge(delta)
 
       if i > 0 && i % 10 == 0 then {
         for j <- i - 10 to Random().between(i - 10, i) do {
-          delta = delta.merge(state.remove(s"hello world ${j} from ${dataManager.replicaId}"))
+          delta = delta.merge(removeStringGetDelta(s"hello world ${j} from ${dataManager.replicaId}"))
+          state = state.merge(delta)
         }
-        state = state.merge(delta)
       }
 
-      dataManager.applyUnrelatedDelta(delta)
+      dataManager.applyLocalDelta(ProtocolDots(state, state.context))
     }
 
     println("finshed adding changes")