Calculation showing how the mass-energy (ε) resulting from the Hawking radiation of the proton core black hole (beyond the proton Compton radius λp) at temperature (Tλ) on the proton charge radius (rp) surface (Ap) with quantum vacuum fluctuations over the characteristic time τp is equivalent to the proton rest mass energy (mp)—following the well-known equivalency of E = mc2. By applying the Stefan-Boltzmann law for black body radiation (the left side of the equation in the image relating total