diff --git a/hbs2-peer/app/RefChan.hs b/hbs2-peer/app/RefChan.hs
index 8b13c976..e892a179 100644
--- a/hbs2-peer/app/RefChan.hs
+++ b/hbs2-peer/app/RefChan.hs
@@ -15,6 +15,7 @@ import HBS2.Prelude.Plated
 
 import HBS2.Actors.Peer
 import HBS2.Base58
+import HBS2.Hash
 import HBS2.Clock
 import HBS2.Events
 import HBS2.Net.Proto.Peer
@@ -132,6 +133,17 @@ checkDownloaded hr = do
   pure $ maybe False (not . List.null)  $ sequence result
 
 
+readLog :: forall m . ( MonadUnliftIO m )
+        => AnyStorage
+        -> HashRef
+        -> m [HashRef]
+readLog sto (HashRef h)  =
+  S.toList_ $ do
+    walkMerkle h (liftIO . getBlock sto) $ \hr -> do
+      case hr of
+        Left{} -> pure ()
+        Right (hrr :: [HashRef]) -> S.each hrr
+
 refChanWorker :: forall e s m . ( MonadIO m
                                 , MonadUnliftIO m
                                 , MyPeer e
@@ -239,12 +251,7 @@ refChanWorker env brains = do
         forM_ (HashMap.toList byChan) $ \(c,new) -> do
           mbLog <- liftIO $ getRef sto c
 
-          hashes <- maybe1 mbLog (pure mempty) $ \hlog -> do
-            S.toList_ $ do
-              walkMerkle hlog (liftIO . getBlock sto) $ \hr -> do
-                case hr of
-                  Left{} -> pure ()
-                  Right (hrr :: [HashRef]) -> S.each hrr
+          hashes <- maybe1 mbLog (pure mempty) $ readLog sto . HashRef
 
           -- FIXME: might-be-problems-on-large-logs
           let hashesNew = HashSet.fromList (hashes <> new) & HashSet.toList
@@ -363,6 +370,7 @@ refChanWorker env brains = do
 logMergeProcess :: forall e s m . ( MonadUnliftIO m
                                   , MyPeer e
                                   , ForRefChans e
+                                  , HasStorage m
                                   , s ~ Encryption e
                                   )
                 => RefChanWorkerEnv e
@@ -370,6 +378,9 @@ logMergeProcess :: forall e s m . ( MonadUnliftIO m
                 -> m ()
 
 logMergeProcess _ q = do
+
+  sto <- getStorage
+
   forever do
     -- FIXME: fix-hardcoded-timeout
     pause @'Seconds 1
@@ -378,11 +389,22 @@ logMergeProcess _ q = do
     let byChan = HashMap.fromListWith (<>) [ (x,[y]) | (x,y) <- logs ] & HashMap.toList
 
     -- FIXME: in-parallel
-    mapM_ logMergeChan byChan
-
+    mapM_ (logMergeChan sto) byChan
 
   where
 
-    logMergeChan (chan, logs) = do
+    logMergeChan sto (chan, logs) = runMaybeT do
+
+      h <- MaybeT $ liftIO $ getRef sto (RefChanLogKey @s chan)
+
+      current <- lift $ readLog sto (HashRef h) <&> HashSet.fromList
+
       debug $ "ABOUT TO MERGE LOGS" <+> pretty (AsBase58 chan) <+> pretty (length logs)
 
+      trans <- filter (not . flip HashSet.member current) . mconcat <$> mapM (lift . readLog sto) logs
+
+      forM_ trans $ \t -> do
+
+        debug $ "ABOUT TO MERGE TRANS" <+> pretty t
+
+