diff --git a/hbs2-core/hbs2-core.cabal b/hbs2-core/hbs2-core.cabal
index b1935fe3..42082057 100644
--- a/hbs2-core/hbs2-core.cabal
+++ b/hbs2-core/hbs2-core.cabal
@@ -97,6 +97,7 @@ library
                     , HBS2.Net.Proto.PeerMeta
                     , HBS2.Net.Proto.Sessions
                     , HBS2.Net.Proto.RefLog
+                    , HBS2.Net.Proto.RefChan
                     , HBS2.Net.Proto.Types
                     , HBS2.OrDie
                     , HBS2.Prelude
diff --git a/hbs2-core/lib/HBS2/Net/Proto/RefChan.hs b/hbs2-core/lib/HBS2/Net/Proto/RefChan.hs
new file mode 100644
index 00000000..a03d27ab
--- /dev/null
+++ b/hbs2-core/lib/HBS2/Net/Proto/RefChan.hs
@@ -0,0 +1,41 @@
+{-# Language UndecidableInstances #-}
+{-# Language AllowAmbiguousTypes #-}
+{-# Language TemplateHaskell #-}
+module HBS2.Net.Proto.RefChan where
+
+import HBS2.Prelude.Plated
+-- import HBS2.Hash
+-- import HBS2.Clock
+-- import HBS2.Net.Proto
+-- import HBS2.Net.Auth.Credentials
+-- import HBS2.Base58
+-- import HBS2.Events
+-- import HBS2.Net.Proto.Peer
+-- import HBS2.Net.Proto.Sessions
+import HBS2.Data.Types.Refs
+
+-- import HBS2.System.Logger.Simple
+
+-- import Data.Maybe
+-- import Data.Hashable
+-- import Data.ByteString (ByteString)
+-- import Type.Reflection (someTypeRep)
+import Lens.Micro.Platform
+
+
+data RefChanACL e =
+  RefChanACLImmediate
+  deriving stock (Generic)
+
+data RefChanHead e =
+  RefChanHead
+  { _refChanHeadPrev    :: Maybe HashRef
+  , _refChanHeadVersion :: Integer
+  , _refChanHeadHistory :: Maybe HashRef
+  , _refChanHeadACL     :: RefChanACL e
+  }
+  deriving stock (Generic)
+
+
+makeLenses ''RefChanHead
+