{"version":"1.0","type":"rich","provider_name":"Castle","provider_url":"https://castle.xyz","title":"swap math symbol band 1 - by @TheBandBank_2026 on Castle","author_name":"TheBandBank_2026","author_url":"https://castle.xyz/@TheBandBank_2026","html":"<iframe src=\"https://castle.xyz/d/Mx2uX3pqJrMi?embed=true\" width=\"450\" height=\"729\" frameborder=\"0\" scrolling=\"no\" credentialless allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" style=\"border-radius: 10px; max-width: 100%; aspect-ratio: 450/729; height: auto;\" title=\"swap math symbol band 1 - by @TheBandBank_2026 on Castle\"></iframe>","width":450,"height":729,"thumbnail_url":"https://image.castle.xyz/d02e6da211424fc28c503664caea67f2?h=800&format=png8&ar=5:7"}