Eugenio Pace knows the stats. The rate of survival for most startups is not pretty. In fact, his first attempt at building a company failed. But the Auth0 story is different. Founded in 2013, the Bellevue, Wash.-based startup has grown into a leading identity authentication software provider and just raised a massive $103 million investment round that propelled the company to “unicorn” status with a valuation above $1 billion. “I feel an enormous responsibility to deliver now that we have this chance,” Pace told GeekWire on Monday.