Bubble Tag™ is a three-dimensional chaosmetric feature using bubbles generated by a polymer. Bubble Tag™ are produced by a chaotic process that cannot be mastered by human hand.

The generation of bubbles is a dynamic system particularly sensitive to the initial conditions. Small variations in those conditions lead to the outcome of an unpredictable constellation of bubbles. The characterization of a Bubble Tag™ by its measure, provides an unambiguous result, enabling the identification of each tag relative to the others, much like our individual fingerprints.

Bubble Tag™ material is made of a transparent polymer that generates bubbles at complete random. Bubbles appear with positions, sizes and shapes that cannot be mastered. Each constellation of bubbles is therefore totally unique but also impossible to replicate, even by Prooftag.