Helium

a blockchain-based network for IoT devices that uses nodes as Hotspots to connect wireless devices to the network

—. “What Is Helium and How Does It Work? Who Created HNT?” Kriptomat, kriptomat.io/cryptocurrencies/helium/what-is-helium/#:~:text=Helium%20is%20described%20as%20a,connection%20data%20across%20the%20network.