I can't think of any reason that having the UUID in the URL would hurt your SEO in any way. You still have the slug, so key words are in the URL. As far as I kn

I can't think of any reason that having the UUID in the URL would hurt your SEO in any way. You still have the slug, so key words are in the URL. As far as I know, having unrecognizeable data in the URL doesn't decrease the importance placed on your page. One thing to consider is if using this method instead of some other method might decrease the number of links to the same URLs on your website. The more links there are to a particular URL, the higher it ranks. But all things considered, I think you're fine.