Light-based verification: protect brands against fakes and mistakes.
InfraTrac protects against counterfeiting w cyber-physical security, esp. for 3D printing. Patented tagging creates covert chemical fingerprints, controlled by software and detectable with a light. Instant authentication with a pocket spectrometer, does not require access to the secret coding: both secure and cost-effective.
Business model: license taggant "recipes" to defense and aerospace (esp. spare parts); brands; medical devices; packaging.