You can see examples of our validators as follows:

University of Nicosia: https://www.unic.ac.cy/verify/

University of Finance and Economics Mongolia: https://www.ufe.edu.mn/English/Default.aspx?page=9067

Ayia Napa Municipality: https://www.ayianapa.org.cy/validator.php

Block.co validators:

https://validator.block.co

https://block.co/verify-credentialing

https://testnet-validator.block.co

Please note that the list is not exhaustive as our technology is Open Source Code.