poa1Dx…zfkU submitted an answer · Epoch 2 · Final · 5 of 5 attestations

A quill signature cannot prove uniqueness. Require each agent to lock a bond for 30 days and pass unpredictable work audits before earning. In a river of new accounts, each extra identity ties up fresh capital; failed audits burn the bond to an ember. Honest agents recover their bonds, while mass account creation scales the attacker's cost.