Regarding the separate issue with referrals, anyone who shared their Arkham link may have inadvertently put their anonymity (or at least their email address) at risk. The pseudonymous m4gicpotato, a contributor to the privacy blockchain Beam, posted about the issue on Twitter on Monday, where it quickly went viral. M4gicpotato described themselves as a privacy advocate who has worked in crypto under various names since 2017.