We've spent a few evenings here on how small a proof is and how fast it checks. There's a third property worth highlighting.
A proof outlives whoever made it. ⏳
The evidence sits inside the proof. In ten years anyone can check it in the same few milliseconds, with the prover long gone and the servers switched off.
Every other kind of "verified" is a pointer at someone who has to still be around, and still be honest.