anchor.diff:  %%                                  {stop, Reason, State}
   %% @end
   %%--------------------------------------------------------------------
  +handle_cast({get_block, ReplyPid, Bucket, Key, UUID, BlockNumber}, State=#state{riakc_pid=RiakcPid}) ->
  +    {FullBucket, FullKey} = full_bkey(Bucket, Key, UUID, BlockNumber),
  +    ChunkValue = case riakc_pb_socket:get(RiakcPid, FullBucket, FullKey) of
  +        {ok, RiakObject} ->
  +            {ok, riakc_obj:get_value(RiakObject)};
  +        {error, notfound}=NotFound ->
  +            NotFound
  +    end,
  +    riak_moss_get_fsm:chunk(ReplyPid, BlockNumber, ChunkValue),
  +    {noreply, State};
  +handle_cast({put_block, _ReplyPid, Bucket, Key, UUID, BlockNumber, Value}, State=#state{riakc_pid=RiakcPid}) ->
  +    {FullBucket, FullKey} = full_bkey(Bucket, Key, UUID, BlockNumber),
  +    RiakObject = riakc_obj:new(FullBucket, FullKey, Value),
  +    %% TODO: note the return value
  +    %% of this put call
  +    riakc_pb_socket:put(RiakcPid, RiakObject),
  +    %% TODO:
  +    %% add a public func to riak_moss_put_fsm
  +    %% to send messages back to the fsm
  +    %% saying that the block was written
  +    {noreply, State};
  +handle_cast({delete_block, _ReplyPid, Bucket, Key, UUID, BlockNumber}, State=#state{riakc_pid=RiakcPid}) ->
  +    {FullBucket, FullKey} = full_bkey(Bucket, Key, UUID, BlockNumber),
  +    %% TODO: note the return
  +    %% value of this delete call
  +    riakc_pb_socket:delete(RiakcPid, FullBucket, FullKey),
  +    %% TODO:
  +    %% add a public func to riak_moss_delete_fsm 
  +    %% to send messages back to the fsm
  +    %% saying that the block was deleted
  +    {noreply, State};
   handle_cast(_Msg, State) ->
       {noreply, State}.
   
  
positive.code: %%% Internal functions
  %%%===================================================================
  
  
  
negative.code: 
  -define(SERVER, ?MODULE).
  
  -record(state, {riakc_pid :: pid()}).
  
  %%%===================================================================
  %%% API
  