{"type":"rich","version":"1.0","title":"Cadwyn Fwyd","description":"Gweithgaredd lle mae myfyrwyr yn trefnu cydrannau cadwyn fwyd yn y drefn gywir.","author_name":"Padlet TA","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1767922020568&hashid=Rej9PbQDrd","html":"<iframe src=\"https://arcade.padlet.com/embed/Rej9PbQDrd\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}