Proof streaming: where to watch online?
Currently you are able to watch "Proof" streaming on Peacock Premium, Peacock Premium Plus, Shout! Factory Amazon Channel or for free with ads on The Roku Channel, Shout! Factory TV, Amazon Prime Video Free with Ads. It is also possible to rent "Proof" on Apple TV online and to download it on Apple TV.
You can also stream the title for free on Hoopla, Plex, Plex Player, Plex Channel.