The inner workings of Facebook’s blockchain team are still shrouded in secrecy, but it’s staffing up, according to people familiar with the group. Those people said that its product, which Bloomberg earlier reported will be a type of cryptocurrency, could …The inner workings of Facebook’s blockchain team are still shrouded in secrecy, but it’s staffing up, according to people familiar with the group. Those people said that its product, which Bloomberg earlier reported will be a type of cryptocurrency, could …