I don't think it's a valid scheme, it seems correct
https://nostrcheck.me/media/592295cf2b09a7f9555f43adb734cbee8a84ee892ed3f9336e6a09b6413a0db9/304b0b52c1b17eb6d04a18fd68000413502f4a9fc2db830ee5b3371de9ae10d8.webp