If you go to

Ray Buni - Nostr Profile | Profilestr

Developer/Freelancer specializes in Bitcoin, Lightning Network, Nostr, Bot and Cashu | #BitcoinOnly

and then the Trust tab, you’ll see the trust scores. For Profilestr, it’s calculated based on the account age, number of zaps etc. to calculate score out of 100, I give Profilestr 33, vertex 33 and relatr 33. I’m still working with vertex to fine tune the normalized score.