What's the Truth Maker?

Presentists believe that if something exists, then the proposition will follow. What makes it true prior to t zero that you will flip the coin is a fact thatrr, what makes it true at tzero that you would not flip the coin? And i think that you've got a clear parallel between saying that am know that the no flip, that the prior to t Zero, that the no Flip will be true. Well, what's what's the truth maker for that? It seems to be some abstract object, some fact.