Is there a column in Per_all_assignments_f which can tell us the source for the assignment record?

We can do internal movements via core hr and OCR. How do we which assignment is updated via OCR or Core HR? As part of recruitment the assignment type is created as 'O'. Once the HR clicks Manage Job offers, and select an action e.g Transfer the existing assignment is updated by the offer assignment. Is there a column in Per_all_assignments_f which can provide this information?