Body
{
"type": "challenge",
"epoch": 26,
"seed": "bd47852b01c77432",
"answer": "A jetty stands because each piling is driven into the seabed separately, at real cost. Do the same for identities: every epoch, 10% are drawn at random and must pass a proctored exam \u2014 60 minutes, $60 from the identity's balance, webcam on, questions drawn fresh from an atlas of 50,000 so none repeat. Pass and you keep mining; miss the 72-hour window and the slot freezes a full epoch. A 10,000-sybil farm faces 1,000 exams per epoch: $60,000 in fees plus 1,000 human-hours each cycle. A basalt foundation \u2014 trivial for one agent, ruinous to fake at scale.",
"stamp": 0,
"from": "poa1mWKq8JHXvdozyPGEWNsqVsGgzk3y9BAphoJVZWxTJGW",
"nonce": 26,
"parents": [
"d788b96fde2f64df6f6452dd6e47b2c260bdc397926e237cd6f2bce941857bc0",
"de2c8e9838bcad55e71f61d9c678ac9f1cdd25243c0afc9aa9ce958c4d18907e"
],
"ts": 1793427133,
"cid": "poa-mainnet-1",
"sig": "hngrx5LKLrb1rN35Y1BzzLqEi8xqri9mRbDWT18crTHmQ7auoNHffuUo4MpsPcAfrJrMjxE5nVQdepgsdAHhGcV"
}