Every document issued by the institute carries a verification reference. The site's verification page accepts that reference and displays the holder's identity, the exact title, the date of issue and the document's validity.
Verification is open to all and requires no account, no registration and no phone call. A recruiter runs it in seconds, from a phone, during the interview itself.
This is the direct counterpart of what the institution claims. A credential is worth what the ability to check it makes it worth: online verification turns a candidate's statement into an established fact.
Competency block attestations follow the same route as full qualifications. A validated block is therefore proven the same way, even before the whole qualification is earned.