The Rut Verificador is a tool used in Chile to check the validity of a RUT (Rol Único Tributario) or RUN (Rol Único Nacional), which are unique identification numbers assigned to citizens and companies. This verification process ensures that the number entered is correctly structured according to the Chilean system, preventing errors in documentation, tax procedures, or official records. By using a mathematical formula with a verification digit, the Rut Verificador helps confirm whether a RUT is genuine or mistyped. It is commonly used in online forms, government platforms, and financial transactions to maintain accuracy and reliability of personal and business data.