Researchers at Cornell University, New York, have created an innovative method for detecting altered or fabricated videos, which consists of embedding invisible watermarks in the light sources used in the production of genuine videos. They call this new type of watermarking ‘noise-coded illumination’ (NCI).

When designing security features for tax stamps, attention is increasingly being paid to features created by digital printing, since this technology is developing very fast. However, many highly effective tax stamps, in use today, carry features printed with traditional, analogue methods, such as offset and intaglio. So, which is better? Or should both methods be used together for an optimal security solution?

The Uttarakhand State Excise Department, located in northern India, has enhanced its tax stamps by incorporating optical security features.

Last month, we spoke to the CEO of Quantum Base, a new International Tax Stamp Association member that brings quantum technology to traditional printing techniques to create virtually uncounterfeitable tax stamps. This month, we’re diving deeper into this technology and exploring how it could revolutionise revenue collection and traceability.

In March, the Uganda Revenue Authority (URA) hosted an eight-member delegation from Malawi’s tax authority, for a five- day tax stamp benchmarking visit.

At the recent High Security Printing™ EMEA conference in Basel, Switzerland, Dr Alexander Brannan from the University of Manchester, and Gary Spinks of Security Fibres UK, presented advances in colour-changing smart materials designed for rapid authentication. This technology addresses key issues in anticounterfeiting by integrating academic research with industrial application.

Across the tax stamp and traceability sector, several concurrent technologies are forcing change: digitisation, the impact of AI, and the prospect of quantum computing. There is no doubt that, individually, these technologies offer convenience and efficiency, but should we be concerned about the interplay between them and whether they could lead to a new set of threats?

Two cannabis businesses in the Canadian province of Alberta – Token Naturals and Plantlife Cannabis – together with US technology company Metrc, are launching a pilot project in Alberta to improve the transparency and safety of cannabis products.

If you only read media reports, it would be easy to assume that the most significant advances in identity document security stem from digital innovation, with biometric verification, blockchain-based identity management, and digital certificates dominating discussions.

India is the largest market in the world for liquor tax stamps, given that 27 states consume 30-35 billion tax stamps annually. While tax stamps at a global level are mainly used on tobacco products as part of a federal scheme, the situation is different in India, where almost all stamps in circulation are used on alcoholic beverages at the individual state level – and no stamps are used at all on tobacco products.