This is data about a coin's Github project activity. The data comes from Github's API and is commonly understood to show how active and maintained projects are. Some of these metrics are combined and manipulated with analysis libraries to create new metrics that normalize and/or rank Github data. For example, health rank looks at how many open pull issues there are relative to how many closed pull issues there are. Popularity is based on subscribers and stars. Recency is based on the last updates and pushes. Currently the ranks are combined, so the top ranking coin may have a rank value of "3" for instance.