Identity (re-write)

Identity is an information about certain person such as your name, age, gender, looks, passport etc... anything that proves that you is you. Everyone and everything has it's own identity. Nobody has the same identity. You may look like someone but there is always some kind of difference between you and that person which identifies who is who, for example your finger prints. the pattern on your fingers are unique. you will NEVER find anyone who has the same pattern as you. As I said before, it might be similar but it will never be the same.

There is a different kind of  identity known as Numerical Identity. As an example we will look at the numbers in your ID card or Passoprt. Every proof of this kind of identity has its own unique numerical pattern which will never be the same to the other person's. There might be a coincidence when you and than person have all numbers the same but the last numbers are different. It happens a lot.
same thing goes on the numbers and letters printed on money. You will never find two e.g 5 pound notes with the same number unless you pick up a fake one.