Koldchain is a public health technology solution designed to improve the safety, transparency, and reliability of cold supply chains, particularly in settings with limited infrastructure. Built on mPedigree’s Goldkeys supply chain management platform, it helps monitor temperature-sensitive products such as vaccines from distribution to use. Thermosensitive labels are applied to products at the start of the supply chain and validated at multiple checkpoints using a smartphone app, SMS, or handheld scanner.

Their changing signals, combined with codes that can be checked by text, help users identify possible temperature breaches, counterfeiting, diversion, or other supply failures. Koldchain provides tracking data, metrics, and analytics to support monitoring, advance detection of problems, and better coordination of deliveries. Its system is designed to work with affordable, widely available technologies: verification is free for downstream users such as consumers and health professionals, while manufacturers and distributors pay for supply-chain monitoring and performance benefits.

By bringing manufacturers, distributors, regulators, retailers, researchers, and consumers together around shared data protocols, Koldchain aims to support more trustworthy product distribution and safer use