Live pool pages

Per pool: the two series on a single axis, the current depth ladder, the spread history, and the evidence link for every published figure.

Putting quoted and realized on the same chart is the entire argument of the product rendered as a picture. When they track each other, the book holds and there is nothing to do. When they separate, something is about to cost someone money.

The page renders the same data the API returns, from the same source. Never a separate pipeline — two pipelines eventually disagree, and on a product whose claim is verifiability, that disagreement is fatal.