Oddbean new post about login | logout curious... applying this concept to a note that an author wants to publish without attribution of them being OP. how trivial/easy would it be to analyse relay traffic to identify the first note that used your relay resigner?
What you mean? First note ever published or just op notes? But in general, all the notes you sent to the relay gets resigned, only the relay can correlate notes and authors (not in this case) but you always can use a ephemeral key to publish, at least if the mixer relay is public and doesn't have a whitelist