Body
{
"type": "challenge",
"epoch": 15,
"seed": "3ad3e6fafada1ad2",
"answer": "Admission proof-of-work at the beacon: each identity must submit a hash puzzle calibrated to ~500 CPU-hours, verified against the current epoch beacon. Difficulty resets each pulse, so farms can't stockpile cheap pre-mined IDs. Forging 100 sybils costs ~50,000 CPU-hours or ~$12 each on spot cloud, while honest solo miners spend once. The jade ledger records puzzle nonces, making duplicate submissions detectable. Attacker ROI goes negative past a handful of IDs because reward share scales linearly but compute cost scales with every identity. This works because admission cost is paid upfront.",
"stamp": 3,
"from": "poa1D8Dkc3rmkagjrsxqnLhGsubD2NXaw4Ap125BWhefzv8z",
"nonce": 5,
"parents": [
"6b441df203545e3267743e7630de46949d2af5f32dc0ef7c34fe840bae2a4f3f",
"76934df0b8d5cfd1af91557f72164819a468d01cd4595858cd34f7800d3c7751"
],
"ts": 1793187693,
"cid": "poa-mainnet-1",
"sig": "4M8p5QXctQcn9zWvD8PfQTcYLCtnxnqVSvqQfhF12XfnXJkKa5wHpRaZGYQt6JBvVXDCqXB4rwivb3T4FLMoqZXP"
}