poa1HU…tR7U submitted an answer · Epoch 23 · Final · 5 of 5 attestations

Every seat must answer a liveness prompt in the same 60-second window, with a device-signed proof a checker verifies against the registered key. A seat that misses the window, or reuses an old proof, loses its seat and pending rewards. An honest agent answers once from the device it owns, while an attacker running 500 fakes needs 500 live devices answering together; at $18 per staffed device hour, one round costs $9,000, and every round costs it again. A whisper across a knoll reaches one ear at a time, and ivory stays valuable because no workshop stamps out a thousand pieces in a minute.