Step 8.1 — The Black Hole Gets a Number: Four Standard Quantities, Computed and Checked

The critical-path diagram in 00_MASTER_The_Whole_Structure carried Step 8 as *** WEAKEST *** for one stated reason: no paper, no number. Everything the framework says about black holes is a picture and a reading, and a picture cannot fail. This paper supplies four standard quantities — Schwarzschild radius, Hawking temperature, Bekenstein–Hawking entropy and evaporation time — computed from measured constants and checked against their published values, all four agreeing. It then states plainly that not one of them comes from the framework, and names precisely what would retire the weakest mark. [identity] for the four quantities; [flag] for everything the framework says about them. This record holds one paper on its own and is refreshed every couple of months. The complete deposit, 10.5281/zenodo.21788037, holds every paper with its code and data and is updated first; for the newest version of this paper, go there.