(Bloomberg) -- A new cryptocurrency aims to occupy the final frontier of investor safety — cash that doesn’t lose purchasing power to inflation.Most Read from BloombergHow Did This Suburb Figure Out Mass Transit?Even Oslo Has an Air Quality ProblemNYC Tourist Helicopter Crashes in Hudson River, Killing SixLisbon Mayor Wants Companies to Help Fix City’s Housing Shortage$15 Million Fund Bets Leadership Training Can Improve Chicago PolicingUSDi, being launched by two veterans of US inflation-protec