{"version":"1.0","type":"rich","title":"MOOC Certifications","description":"A force-directed graph displays Marvel superheroes and their connections, rendered as an interactive network of images. Clicking a node reveals the character's name and a link to their course certificate. The visualization uses `d3.layout.force` for physics simulation and `d3.layout.tree` to derive links, with SVG elements like circles, images, and text for display. Nodes scale by a `size` attribute, and hover animations enlarge images via D3 transitions. Data is fetched as JSON from a remote GitHub URL.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ec2755f7d1c74bb49bf53fb0b6f04c69?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}