Supported by the following organizations
This is to certify that Jeroen Janssen successfully completed and received a passing grade in CS50x: CS50's Introduction to Computer Science a course of study offered by HarvardX, an online learning initiative of Harvard University.
Noted by
David J. Malan
Gordon McKay Professor of the Practice of Computer Science Harvard University
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- Verified Certificate Issued October 5, 2026
- Valid Certificate ID 5b889c95feba429498f4a0f960203458