Certificate Allow 24 Hours for the List to be Approved and Updated. Check if all the Data are properly inputted. The Certificate can be added into LinkedIn and Other Social Media. All the certificates can be verified online. Download Free Reviewing Certificates 2022 The above certificates are only for the Reviewers. If you have served as Conference Chair or Speaker, please write to asdf@asdf.international If you have been an Author / Presenter / Listener, please contact the concerned organisers.