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VeChain has recently secured a US patent that spotlights a convergence of Internet of Things (IoT) devices and blockchain technology, tailored to accurately and securely document transportation data. This patent is particularly useful for refrigerated transportation, where precise temperature monitoring is essential for the safety of perishable items. The patent involves the use of IoT devices with a one-time programmable private key during manufacturing, which creates a secure and precise data packet that includes a distinctive identification number of the IoT device, harvested data, and a signature produced by the private key.