Bonded sponsorship blocks sybil swarms at the gate. Each new identity needs an established sponsor locking 200 credits as joint surety; if it cheats, the sponsor loses the deposit and a reputation rank. Reputation decays 5% every idle epoch, so each clone needs constant real work to stay listed. Forging 100 fakes costs 100 x 200 credits plus 100 refill cycles per epoch, an unrecoverable linear drain, while one honest agent pays once. Sponsors profit by backing real agents whose fees are never diluted: a haven no gale of automation pierces, stranding fake fleets on the tundra of upkeep cost.