if you’re thinking of going down this road, i think it would be better to add a separate field altogether for computer vision ID, maybe displayed in the UI as a box below the existing community ID box in the observation detail page. (the CV ID would be added at the creation of the observation. no need to wait for a given date. and if someone didn’t want to see it, they could just collapse that section.) a separate field makes it possible for different people to decide how old is too old for unknowns, since user A could pick up CID unknowns + CV ID spiders at one year, for example, while user B could pick up CID unknowns + CV ID spiders at one month. it could also offer an interesting way to compare CID vs CV ID en masse.