Votifier Check

I need a way to use the Votifier plugins API and make it so I can check if a player has voted. Im trying to avoid storing all the players that voted in any sort of file or SQL. (This really doesnt need to be with that API but some system of it).

Im not sure the best way to go about it though, most likely checking the vote websites with some type of system.

I wish there was some method like Votifier.hasPlayerVoted(player); but sadly life isnt that simple.
I was also thinking of some storage in game but nothing really saves through restarts without the need of a storage system.