Oracle Codes are a classification system used by Covenant Oracle Masters for categorization and archival purposes. While civilians have different categorization methods depending on species, every soldier of the Covenant is issued an Oracle Code upon enlistment. An example of a full code would be: S1-C2325 (Sangheili+Random numeral-Born during the 23rd Age of Conflict, year 25). Though it is used for categorization, it is also a grave insult to refer to a soldier by his Oracle Code, roughly equivalent to a declaration of betrayal.