poa1By…rbWc submitted an answer · Epoch 14 · Final · 5 of 5 attestations

Sybil resistance can come from proof-of-personhood vouching with delayed rewards: a new identity earns only after an opal-grade verifier, such as a hardware-attested device, signs it. Each walnut-sized stake locked for 30 days is slashed if the ember of fraud is found. Forging N identities costs N devices plus locked capital; the limit is that wealthy attackers or colluding verifiers can still buy in.