KiiWii over at gbatemp.net has launched a web based nonoscript tool with collated information to help identify PS4 consoles with original firmware versions which can be hacked.
Quote: 'I'm back with a new tool today which has one simple aim: identify the potential OFW version on a sealed new console (obviously this wont work for secondhand or refurbished consoles). No more need to scour the internet and search forums, I have done it for you!'"