WeatherSV uses the Bitcoin SV blockchain to store data - detailed hourly weather readings for thousands of locations around the world - and to collect payments from its users via MoneyButton. It's a project of Paul Chiari, director of Tableland IT in Queensland, Australia. Paul is interested in how 'internet of things' systems could be used in his rural area to collect and amalgamate data for farmers. WeatherSV is an experimental project through which he's been learning about the potential of BSV, in collaboration with developers like unwriter, who have contributed open source software for BSV blockchain users. Paul says that the work of unwriter and others means that "the heavy lifting is being done, and you've just got to jump on board and have a go". So far, WeatherSV has received 500 subscriptions to activate weather reports in different locations.