Every number on the board is a claim — a value we assert about an actor, with the sources behind it one click away. These pages are the other half of that contract: what each metric means and how it is calculated, so the recipe is as inspectable as the figures.

Four measured axes, plus three supporting reads. None of this is novel — each axis deliberately adopts an established formalization from finance, economics, or power-measurement literature, named on its page. Where our figure is an estimate, the claim says so; a metric with no visible source is a bug.