Somewhat related but Ring has a Neighbors app where you can share video with other users in your area (or request video from certain times). The site is not wo

Somewhat related but Ring has a Neighbors app where you can share video with other users in your area (or request video from certain times). The site is not working for some reason (https://ring.com/neighbors https://ring.com/neighbors) but it stirred a bit of controversy when launched. This sort of gets at your idea of a platform to identify people.