The Bubble Tag™ is a visible and measurable anti-counterfeiting chaotic element.
An element is defined as a chaotic element when the physical characteristics of the discriminating evidence of the element used to make the differentiation are obtained by a natural phenomenon independent from any human intervention.
An element is defined as a visible chaotic element when at least one of its characteristics is recognizable with the naked eye by comparison with its description or its reference as an image. This comparison is considered securely visible if a chaotic element that does not match its description or its reference image can be immediately rejected.
An element is defined as a measurable chaotic element when at least one of its characteristic, is measured by a sensor and when each chaotic element gives a different measure. The result of the measure is called a digital template
An element is qualified as a visible and measurable chaotic security element when the following 3 conditions are met:
- Every single measure of a single chaotic element allows its authentication. It shall be accepted that this measure can have a false rejection rate of no more than 2 consecutive measures and that the false acceptance rate is equal to zero
- At least one of its measurable characteristics demonstrates unequivocally that the document has not be counterfeited
- At least one of its measurable characteristics demonstrates unequivocally that the document has not be falsified
