anchor.diff:  
   %%--------------------------------------------------------------------
   %% @doc
  -%% Returns a list of nodes of requested length responsible for handling given datastore key.
  +%% Returns a list of nodes of requested length responsible for handling
  +%% given datastore key.
   %% @end
   %%--------------------------------------------------------------------
   -spec responsible_nodes(key(), pos_integer()) -> [node()].
  
positive.code: %%--------------------------------------------------------------------
  %% @doc
  %% Creates a key from digest that is adjacent to the Original key.
  %% A list of binaries is preferred, are recommended, other terms are
  %% firstly transformed to binary.
  %% NOTE: if a legacy Original key is given, adjacency is not supported.
  %% @end
  %%--------------------------------------------------------------------
  
negative.code: %%--------------------------------------------------------------------
  %% @doc
  %% Returns the datastore key obtained from digesting arbitrary terms.
  %% A list of binaries is preferred, other terms are first transformed to binary.
  %% @end
  %%--------------------------------------------------------------------
  -spec new_from_digest(digest_components()) -> key().
  