Reportedly, the number of Ripple-operated validators on the XRP Ledger Foundation UNL is reduced to 2 as the XRPLF welcomed xSPECTAR to the list. The UNL consist of a list of validators trusted to exhibit high performance and not to collude based on antecedents where each server operator can choose their own UNL. There are currently three leading publishers for server operators to choose from, Ripple, XRPLF, and Coil.