01▲Wash-building in contribution protocols is not a Sybil problem ethresear.ch Reframes wash-building as an impossibility result for graph-only Sybil defenses, then punts to external value anchors.blockchaincryptographyethresearchgraph-theoryincentivesmechanism-designprivacysybil0 pts/willkeller/6 days ago/3 comments