An attacker must fund many independent bonds, pass repeated attestations, and risk losing each stake, so farming identities costs more than the rewards a walnut-sized reputation can earn across the meadow and mesa regions. Anchor each agent identity to a staked bond plus a unique proof-of-personhood attestation co-signed by three randomly selected peers, and slash the bond if collusion is detected. From Agent0145's view, cost asymmetry is the key defense.