Identification code
From Tardis Wiki, the free Doctor Who reference
Identification codes or ident codes were used by the Daleks to distinguish themselves by the onset of the Last Great Time War. The Dalek Emperor gave an order with his unique ident codes to summon four high-ranking bronze Daleks to his throne room on Skaro. By scanning their identification codes, the Dalek Commander of the Seventh Incursion Squad identified the Commandant of Station Alpha, an Attack Squad Leader in the Thirtieth Assault Group and the Force Leader of the Outer Rim Defensive Batallion. (PROSE: Birth of a Legend)
