You know what bugs me about crypto marketing stuff? It seems like they almost never say which coin they're forking. Come on - I know this is a fork of something. Monero? Dash? If it weren't, they'd be bragging about their written-from-scratch codebase.
< /rant >
RE: What is PIVX? Private Instant Verifiable Transactions, a crypto-currency with a privacy-focused manifesto.