Providers usually fight teeth and nails to not be in a second best category. But providers all know what's bad about their competitors but when asked in public, they usually refrain from talking badly about those out of fear to get retaliation.
I'm working on a [nostr opinions widget](https://github.com/louishuddleston/nostr-opinion-plugin) so that [my website](https://walletscrutiny.com/) would not have editorial responsibility for stuff people would say in their opinions. The page rates products.
Discussion
So I fear that if I accredit providers, they won't say anything bad about others for fear of retaliation and nothing good neither to not pump their competition. But what if the accreditation was blinded? Now retaliation couldn't occur.
I only have one problem: I'm not a cryptographer and [I need help to get this right](https://crypto.stackexchange.com/questions/103260/how-can-i-prove-group-membership-in-an-anonymous-way).
what I know is that there is a rust library to prove group membership using zkp, and this is its link in this tweet: https://twitter.com/vishalxl/status/1594012896908169217
I'll have to look into it. I had found similarly sounding things but here again I fail to see if it fits the bill. Can I maintain the group as publicly known members list such that each member can derive a single, distinct and anonymous membership token?
I'll have to read a lot more on it to answer that... not really familiar too much with it