Social insurance unique serial number format

Date+number stands for+number. The unique serial number format of social security consists of date+number+number, usually 12 digits, preceded by year and month (20 1004) plus 6 digits serial number, and if there are less than 6 digits, 0 is added. It should be noted that the specific format may be different due to different regions and social security systems. In practical application, it is recommended to consult the local social security department or relevant institutions to obtain accurate formats and requirements.