The last six digits of the ID number. The password of campus card of Nanjing University of Technology is 6 digits. The initial password is the last 6 digits of the valid ID card or passport number. If there are letters or special characters in the last 6 digits of a valid ID card, the number 0 shall be used instead. The campus card service platform uses unified identity authentication (UIS) to log in. After logging in, you can query personal account information, query transaction flow, report the loss of campus one-card and so on.