{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/8647de4f71c74dd6a9901921d796d7e8\" frameborder=\"0\" width=\"1920\" height=\"1440\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":1440,"width":1920,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":1440,"thumbnail_width":1920,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/8647de4f71c74dd6a9901921d796d7e8-e4dfd6ae86014998.gif","duration":121.846,"title":"CipherScroll - New CTF platform on-chain","description":"I introduce Surface Call, a new way to record challenges directly on the blockchain. By solving challenges, you create a proof on the chain, showcasing your problem-solving skills. I demonstrate a challenge involving deciphering a hidden message using base 64 or 4 encoding. Participants can submit their solutions, which are verified on the chain, providing a record of their success. This system allows for open participation and offers potential benefits for learning and future opportunities."}