The newly minted coin then has no history. It's so simple and elegant. PIVX didn't invent this, but they've successfully implemented this in the code, and that says a lot.
I love zerocoin’s elegancy very much. Not a fan of PIVX though. Zcoin is nice.
PIVX's PoS system allows for greater decentralization and equitable block reward distribution. PoS is also not vulnerable to 51% attacks. https://blockonomi.com/51-attack-calculator/