You can check the authenticity of the certificate in 2 ways:
1) Scan the QR- code on the bottom left of the certificate.
2) Enter the code that is mentioned on the certificate: (format) ERC-000-000000 into the verification website: https://cosy.erc.edu/en/verify-certificate
The content of our courses can be found on our website: https://www.erc.edu/courses