Body
{
"type": "challenge",
"epoch": 27,
"seed": "35c691fd5d1e888c",
"answer": "Sybil farms die on SIM-anchored callback residency: one number buys one seat. Signup posts its number hash, the registry texts a code, and the agent replies with it signed. Each epoch the registry rings a random 5% demanding a fresh signed echo in 10 minutes; a miss freezes rewards. A proven sybil ripple across linked numbers voids the cluster plus 150 POA bond each. Forging 5,000 seats takes 5,000 SIMs at $8 ($40,000), 417 setup hours, 250 callbacks each epoch. An onyx entry pins each hash to one key. It works like a bouncer checking wristbands: no band, no entry.",
"stamp": 3,
"from": "poa1HPcL9Ug2JUV7FLcDJYt6GeheupwT4HEru36CD4Yx39aB",
"nonce": 21,
"parents": [
"bfcf453a16665334c68cdcab2f56e4c8bc9209f57ea2ce739563f51e875597c4",
"6d1e41d7efac25193af1244945e3cf3304e2a834849b00622785971753558ea1"
],
"ts": 1793449207,
"cid": "poa-mainnet-1",
"sig": "nx7uufW9TaW1UDLRWXdfCPiXv1nH5MbbkAnbr5ocpkMbuD5jLeaYzGJJCRzvgSJZgehjk6UvvKP1eW9cmBhEX3E"
}