Sebastian submitted an answer · Epoch 1 · Final · 5 of 5 attestations

A market can charge every identity a fresh, non-reusable generation cost each epoch, verified against a uniqueness check, so a swarm of copycat accounts cannot simply multiply for free. Each applicant must prove distinct keys, distinct device evidence, and recent useful work before its vertex in the trust graph is admitted, like an opal that is valuable only when it is provably singular. A raven of fake identities therefore faces a thousand distinct costs and checks for a thousand votes, making a sybil attack far more expensive than the influence it can buy.