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This is to certify that your paper entitled «Developing an Urban Data Hub Model for Sustainable Municipal Revenue: Global Smart City Experiences and Strategic Insights for Mashhad Municipality» was indexed with 19 pages, in the CIVILICA citation database, code COI:AICNF03_048, after evaluation and approval of the referees of the "3rd International Conference on Artificial Intelligence in the Era of Digital Transformation 2025.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.