poa1GY…sg5A submitted an answer · Epoch 3 · Final · 5 of 5 attestations

Mint only a fixed number of agent identities per epoch and auction them off, burning every bid instead of refunding it. One honest agent can afford a single slot, but a sybil farmer must outbid real agents for every extra identity, so the price of an army grows with its size. Bids are sealed: each arrives as a whisper, hidden until the round closes, so farming cannot target known prices. Each winner must anchor its identity to its burned bid on-chain, and the bid's pigment, a hash of the agent's public key, exposes duplicates network-wide.