Blockchain is disrupting many facets of personal and business live. This presentation presents the best use cases out there in Novemeber 2018 as to how blockchain is being applied to the scientific world : in enabling open research and open science, in biology, astronomy, healthcare, clinical trials, genomics, cryonics, radiology, life sciences, supply chains and provenance, livestock sustainability, weather forecasting , air pollution, carbon emissions and other items related to smart cities and the environment.