modum.io combines IoT sensors with blockchain technology, providing data integrity for transactions involving physical products. modum.io offers a passive monitoring solution to streamline the supply chain processes in many sectors The modum sensors record environmental conditions that goods are subject to while in transit. When the goods change ownership, the sensor data is verified against predetermined conditions in a smart contract in the blockchain. The contract validates that the conditions meet all of the requirements set out by the sender, their clients, or a regulator and triggers various actions: notifications to sender and receiver, payment, or release of goods.