What is the check code of admission certificate for transfer to Qingdao?

A series of numbers on the insurance certificate held by the social security insured. Transfer to Qingdao requires the check code of admission certificate, which can transfer the social security of students to the schools that need to transfer. The check code is a series of numbers on the insurance certificate held by the social security insured, which can be used to query and verify the insurance status of the insured.