Cryptonomica - is a resource , that will be used for KYC verification of Your person. After verification on Cryptonomica, Your PGP key will be certified legally and valid for two years.
Go throw the link to verify Your account https://app.stex.com/en/profile/verification, also notice, that:
2.1. You must link your Gmail account, that will be used for verification on Cryptonomica.
2.2. Insert data in accordance with Your passport, driver license, etc.
2.3. Don't forget to limit the validity period of Your PGP key to 2 years.