anchor.diff:  deserialize_from_store(_) -> false.
   
   
  -
  --spec deserialize_from_network(binary()) -> {ok, header()}.
  -deserialize_from_network(B) when is_binary(B) ->
  -    deserialize_from_map(jsx:decode(B, [return_maps])).
  -
   -spec deserialize_from_map(map()) -> {ok, header()}.
   deserialize_from_map(H = #{}) ->
         #{<<"height">> := Height,
  
positive.code:          difficulty/1,
           time_in_secs/1,
           time_in_msecs/1,
           serialize_to_network/1,
           deserialize_from_network/1,
           serialize_for_hash/1,
           serialize_for_store/1,
           deserialize_from_store/1,
  
negative.code: 
  time_in_msecs(Header) ->
      Header#header.time.
  
  -spec serialize_to_map(header()) -> {ok, map()}.
  serialize_to_map(H = #header{}) ->
  