Are there any good products to verify authenticity of videos?

During war, journalism is outsourced to thousands of people who can capture footage with their phones. Authenticating these is important

there are a few solutions now for photos: Roc camera and others 

for videos i am only aware of this paper. but not sure if anyone has implemented it yet

Consumer Lead at Monad, prev Cofounder at Llama

there are a few solutions now for photos: Roc camera and others 

for videos i am only aware of this paper. but not sure if anyone has implemented it yet

https://eprint.iacr.org/2024/1436.pdf