Climate change is an interesting example. An example of a DIRT registry, would not be the question of "is climate change real". It's unclear what defines "real". Rather a registry could be a list of the average air temperature in a city over time.
Don't take me wrong. I don't really see the value in inventing a truth bureaucracy that rewards participants in fake money. This dirt system is just silicon valley, in it's typical naivety, trying to reinvent propaganda.