A RUT verificador is a tool used in Chile to check the validity of a RUT (Rol Único Tributario), which is the unique identification number assigned to citizens and companies. This verifier helps confirm whether a RUT is correctly written by validating its check digit, ensuring that the number is authentic and free of errors. It is commonly used in official processes, online registrations, and financial transactions to prevent mistakes or fraud. By simply entering the RUT, the verifier calculates and confirms the accuracy of the number, making it a reliable resource for both individuals and businesses.