It is generally accepted that black hole emits Hawking radiation. I wonder if this radiation is different in case of black hole created by collapsing anti-matter.
Consider a thought experiment. At the beginning we have antimatter which collapses into black hole. Then black hole evaporates as a result of Hawking radiation. What is the end result of this radiation: matter, antimatter or mix of both?
If antimatter, then we have a method to distinguish between black hole and anti-black hole - it contradicts to responses to answers to "Anti-Matter Black Holes" that there is no method to find a difference between black hole and anti-black hole.
If matter or mix - then we have strange alchemic transmutation: antimatter (beginning of the experiment) transforms to plain matter. So maybe anti-black hole emits Hawking radiation consisting of antimatter only.
Another possibility: Hawking radiation consisting only of truly neutral particles (photons, Higgs, etc.). This is strange too because antimatter changed to neutral particles.
What is the end result of anti-black hole evaporation?