Design feature DF3: Near-sensor preprocessing and hashing
Preprocess the data and record the blockchain transaction as a hash as close as possible to the sensing unit, preventing manipulation from that point on.
Source paper
This design feature is a technology-specific realization proposed by Blockchain for the IoT: Privacy-Preserving Protection of Sensor Data (Mathieu Chanson, Andreas Bogner, Dominik Bilgeri, Elgar Fleisch, Felix Wortmann, 2019).