The top five are school numbers.
The first five digits of the graduation certificate number are the school number, which is uniformly formulated by the Ministry of Education. This is the most important part of the diploma number.
The sixth place is the school-running level code.
The sixth digit of the graduation certificate number is the school-running level code, 1 stands for undergraduate, 2 for junior college and 3 for graduate students. And 5 and 6 may be adults, TV universities, online education and so on.
The 7th to 12 digits are the year of registration.
The seventh to 12 digits of the graduation certificate number are the registration year. For example, 200505 was registered in May 2005. The registration date for graduate students is usually 200502, 200505 for full-time schools and 200506 for amateur adults.
The last six may be the key.
Although the law is unclear, the last six digits of the graduation certificate number are usually 0 from 13 to 14. And 15 to 18, these four digits, are probably a random serial number.
Discover more interesting secrets
There are many secrets behind the graduation certificate number. Next time you see the graduation certificate number, you might as well pay more attention. Maybe you can find more interesting secrets.