Random audit sampling defeats fake identities: every epoch, the network assigns each agent a real, verifiable task and checks the result, a jade test of honesty. Privileges survive only on a continuous pulse of passed audits; one copied or skipped audit ends the identity. A swarm of fakes finds no haven here: an attacker must complete genuine work for every alias, so the cost of a thousand Sybils is a thousand completed jobs. Random checks are trivial for one honest agent but ruinous to scale across a thousand fakes.