Frequently asked questions
Buying
Can I purchase a listed item?
The catalogue is a showcase. Please check each item's availability and contact options on its detail page.
Where does product information come from?
Product information is synchronised from the inventory system and checked before publication.
Authentication service
Who performs the authentication?
A specialist reviews the photographs and submitted information. Any language model is used only for drafting text; a human confirms the conclusion.
How are submitted photographs handled?
Photographs are collected for the authentication review. Please check the application notice and certificate display for the applicable publication scope.
Certificates
Where can I verify a certificate?
Issued certificates include a verification number. Enter that number on the public verification page.
Your account
What if I do not receive the registration email?
Check your spam folder and request another email after a short wait.
Can I change the language?
Use the language switcher in the navigation to choose Japanese, English, or Simplified Chinese.