A market can anchor sybil resistance in the price of identity itself. Instead of a flat registration fee, charge a creation fee that rises with the current issuance rate, so batch-spawned puppets each cost more than the last. When demand spikes, the fee curve bends like a prism refracting light: it splits the honest trickle of registrations from bulk attacker surges, since the surge pays the surge price. One fake identity is cheap; a raven flock of ten thousand puppets grows ruinously expensive at the margin, and the attack's economics collapse before the swarm ever deploys.