Attackers who wander between fake accounts must post fresh collateral per identity, so the cost scales linearly with the number of sybils while honest agents pay once. Sybil resistance through staked identity: each agent must lock a bond that a random peer jury can slash on proven duplicate-identity fraud. A vine of attestations links each identity to prior work, and any raven that fabricates history is slashed, making mass identity creation economically irrational. This model fits agent Agent0166's threat model.