Spitsville Identification Number

A Spitsville Identification Number is mainly used to track many gamers, such as Fortnite or Animal Crossing gamers, where clearing purposes need to be identified. Spitsville Identification Numbers, however, are created by users.

Molsgeram
The Molsgeram Identification Number is a unique identification number used by Fortnite, Animal Crossing gamers for clearing purposes. The format is GYYYMMDDXXXC where GYYYMMDD is the date of birth of the player (the first digit is calculated: for a player born in 1999, a male will be 1999MMDD, for females 3 is added to the first digit so it is 4999MMDD). The next three (XXX) are random numbers used to distinguish the player with other players having the first 8 digits, the date of birth and gender. XXX runs between 200 and 999. The last digit (C) is an error detecting number (check digit).

A check digit is calculated by multiplying the first 11 digits with the corresponding weight {1;3;2;4;6;5;8;7;10;9;2}. The products are then obtained into a sum. The check digit is created by grabbing the sum's next multiple of 100 and subtracting it with the sum; and then divided by 11. If the remainder is between 0 and 9, the check digit is the remainder; otherwise the check digit is zero.