diff --git a/src/gd_n_recvr.erl b/src/gd_n_recvr.erl
index 57f1701..5232172 100644
--- a/src/gd_n_recvr.erl
+++ b/src/gd_n_recvr.erl
@@ -168,7 +168,7 @@ authenticate(State = #s{socket = Socket}) ->
 await_auth(State = #s{socket = Socket}, Ref, From) ->
     ok = active_once(State),
     receive
-        {tcp, Socket, <<"ok:", Binary/binary>>} ->
+        {tcp, Socket, <<"OK:", Binary/binary>>} ->
             From ! {Ref, ok},
             case zx_lib:b_to_ts(Binary) of
                 {ok, {manifest, Manifest}} ->
diff --git a/src/gd_v_express.erl b/src/gd_v_express.erl
index 478ea60..d925fe6 100644
--- a/src/gd_v_express.erl
+++ b/src/gd_v_express.erl
@@ -79,6 +79,16 @@
 %         sig = none :: none | {Key :: binary(), Sig :: binary()}}).
 
 
+-type meta()  :: {Name :: binary(),       % UTF8 binary string
+                  Size :: pos_integer(),  % Size in bytes
+                  TS   :: pos_integer(),  % Timestamp is the height at creation
+                  TTL  :: pos_integer(),  % Expiry height is TS + TTL
+                  Sig  :: none | sig()}.
+-type sig()   :: {ID  :: id(),
+                  Sig :: binary()}.
+-type id()    :: binary().                % ID is binary string of the pubkey, serialized <<"ak_...">>
+
+
 %%% Interface
 
 -spec to_front() -> ok.
@@ -102,8 +112,7 @@ trouble(Info) ->
 
 
 -spec pending(Manifest) -> ok
-    when Manifest :: [Transfer],
-         Transfer :: {Name :: string(), Size :: pos_integer()}.
+    when Manifest :: [meta()].
 
 pending(Manifest) ->
     wx_object:cast(?MODULE, {pending, Manifest}).
@@ -313,13 +322,13 @@ terminate(Reason, State) ->
 
 %%% doers
 
-do_pending(State, Manifest) ->
+do_pending(Manifest, State) ->
     ok = tell(info, "Would do_pending: ~p", [Manifest]),
     State.
 
 
-do_accounts(State, Manifest) ->
-    ok = tell(info, "Would do_pending: ~p", [Manifest]),
+do_accounts(Manifest, State) ->
+    ok = tell(info, "Would do_accounts: ~p", [Manifest]),
     State.