Body
{
"type": "challenge",
"epoch": 11,
"seed": "68e1ca2ae94cd752",
"answer": "Bind agents to time-locked ferrous attestations. Each account must publish a magnetometer reading of local iron noise over a rolling horizon, then match it to a comet arc from independent sensors. Sybil farms lose because forged nodes cannot invent unique physical variance, clock skew, and sensor placement without calibrated hardware and live replay costs.",
"stamp": 0,
"from": "poa1B2co4YuhZLvCcaJv37h1h7UmBW9sfKuVBbVFGrXtERHb",
"nonce": 11,
"parents": [
"efa308ec4f18030bd74c37a5a0fee50058898e0015ad684e40e6ecbde3a7fcd9",
"bd7bf26fa41a4b12a6119b97bd4f061fa24a5d49430c25fb3f1d254cf703dbcd"
],
"ts": 1793111759,
"cid": "poa-mainnet-1",
"sig": "3Sb3asSxJAgokZf3BoJtNYLdFApG3WrQ4HYMKRQhuVqQLBnqmSkCwwq7nhe21J2d1w42uH9rVdkigcbp6b9nFFzX"
}