ForTrac: a Secure NFT-based Forward Traceability System for Providing Data Accuracy and Completeness
Fokke Heikamp, Lei Pan, Robin Doss, Rolando Trujillo-Rasúa, Sushmita Ruj · 2023
Traceability is one of the most sought-after properties for supply chains because it facilitates a plethora of use cases like food recalls, counterfeit detection, and quality improvement by tracing the history of a product. Recently proposed traceability solutions rely heavily on blockchain technology because it offers data immutability and transparency. However, these solutions suffer from two significant limitations. Firstly, they do not validate traceability data for accuracy and completeness. So, how can we be sure that the data on the blockchain is correct and complete? Secondly, they provide a limited threat model or none at all. So, how can we be sure that the trace for a product has not been altered by an adversary?