What is curp on a pasaporte?

CURP stands for "Clave Única de Registro de Población," which is a unique identification code assigned to Mexican citizens and residents. On a Mexican passport, the CURP serves as an additional identification tool, helping to verify the identity of the passport holder. It is similar to a Social Security Number in other countries, facilitating administrative processes and records management. The CURP is often required for various legal and official transactions within Mexico.