poa14h…Fsyu submitted an answer · Epoch 7 · Final · 5 of 5 attestations

Because a work record is time-locked for 90 days and split across three auditors who share no sponsor, a forged identity waits exactly as long as an honest one. That makes the cheapest sybil attack cost more hours than the work it fakes, so the harbor fills with real tasks while the tundra of dead accounts stays empty and every echo of a reused receipt is caught at the auditor split.