What is the personal social security computer number of provident fund?

Beijing's social security has a medical insurance number and a four-insurance number, which can be inquired by the unit, and a lot of information can also be inquired by the ID number.

Housing provident fund generally has only one employee number, which is the employee sequence number of the unit, and can also be queried through the unit account. This number will be used when handling provident fund withdrawal, loans and other businesses.