| 23/08/2023 | 7161 | Speaker | Mohamed | Aly | Mohamed Aly | California Polytechnic University, Pomona | PayPal | United States | Email hidden; Javascript is required. | 8EK580081P949663K | 69.62 | 23/08/2023 | Paid | | |
| 29/07/2023 | 7143 | Speaker | John Wilmar | Castro Llanos | John Wilmar Castro Llanos | Universidad de Atacama | PayPal | Chile | Email hidden; Javascript is required. | 3BH628242F6098721 | 69.62 | 29/07/2023 | Paid | | |
| 21/07/2023 | 7082 | Speaker | Yuanyi | Chen | Yuanyi Chen | University of Missouri | PayPal | United States | Email hidden; Javascript is required. | | | | | | |
| 12/07/2023 | 6738 | Speaker | Yehuda | Roth | Yehuda Roth | Oranim College of Education | PayPal | ישראל | Email hidden; Javascript is required. | 83E7628559070083C | 69.62 | 12/07/2023 | Paid | | |
| 09/06/2023 | 6534 | Speaker | Pilar | Babi Rourera | Pilar Babi Rourera | Institut Catalá de la salut. Generalitat de Catalunya | PayPal | Espanya | Email hidden; Javascript is required. | | | | | | |
| 26/05/2023 | 6538 | Speaker | Pallavi | Nair | Pallavi Nair | Imperial College London | PayPal | United Kingdom | Email hidden; Javascript is required. | | | | Processing | | |
| 26/05/2023 | 6577 | Speaker | Mohamed Lazhar | Bellagha | Mohamed Lazhar Bellagha | University of sousse, ISITCom | PayPal | Tunisia | Email hidden; Javascript is required. | | | | Processing | | |
| 24/05/2023 | 6577 | Speaker | Mohamed Lazhar | Bellagha | Mohamed Lazhar Bellagha | University of sousse, ISITCom | PayPal | Tunisia | Email hidden; Javascript is required. | | | | Processing | | |
| 18/05/2023 | 6473 | Speaker | Li- Chen | Cheng | Li- Chen Cheng | National Taipei University of Technology | PayPal | Taiwan | Email hidden; Javascript is required. | 6MD60874WF570520X | 69.62 | 18/05/2023 | Paid | | |
| 15/05/2023 | 6507 | Speaker | Zakria | Qadir | Zakria Qadir | Western Sydney University | PayPal | Australia | Email hidden; Javascript is required. | | | | | | |
| 25/03/2023 | 6366 | Speaker | Kang-Hyun | Jo | Kang-Hyun Jo | University of Ulsan | PayPal | South Korea | Email hidden; Javascript is required. | 4G162266XJ1377106 | 69.62 | 25/03/2023 | Paid | | |
| 20/03/2023 | 6410 | Speaker | Zeyang | Zhou | Zeyang Zhou | Tianjin University | PayPal | 中国 | Email hidden; Javascript is required. | 5J932188WT202191N | 69.62 | 20/03/2023 | Paid | | |
| 17/03/2023 | 6357 | Speaker | Hocine | Guentri | Hocine Guentri | University Centre Abdelhafid Boussouf of Mila | PayPal | Algérie | Email hidden; Javascript is required. | | | | Processing | | |