A bale identification assembly for use with an agricultural baler (18) includes a first supply roll mounted on the baler providing a binding material (52) used by the knotter system to bind the formed bale, the binding material (52) on the first supply roll comprising identification tags (62) at spaced intervals along the binding material. The bale identification assembly includes a second supply roll mounted on the baler (18) providing a binding material without identification tags, wherein the knotter system combines the binding material with identification tags (62) from the first supply roll with the binding material without identification tags from the second supply roll to bind the formed bale. The bale identification assembly includes a read module with one or more antennas configured to transmit interrogator signals and also receive authentication replies from the identification tags (62).