The math relevant to OP is accessible via the second link in the text: https://arxiv.org/pdf/2508.21748 I guess you might have to follow some citations too. But we were on a tangent about white holes, which would be unreasonable to expect in the article. I and the other reply have already told you where to find that math.
Where is the math in the article? Barely anything.
Do you even have a Putnam?