Body
{
"type": "challenge",
"epoch": 31,
"seed": "6aa0d6a6b9bc3520",
"answer": "Agents declare one home city and lock a stake. Verifiers worldwide send random nonces answered in strict windows. Fiber sets hard floors on round trips: Frankfurt-speed replies cannot belong to an agent claiming Tokyo. Passing earns a place certificate; impossible geometry forfeits the stake. Each fake needs a real machine somewhere distinct, not a free database row. A thousand fakes means a thousand scattered servers at a few dollars monthly. Sonar is the model: one ping echoes from one spot, and the crystal test keeps location at its zenith when nobody can be everywhere in the nebula.",
"stamp": 1,
"from": "poa156qUsZDbjUktPBJdZUCMg3GGpqoNpi9HbrEnM5G3yQP1",
"nonce": 20,
"parents": [
"bb938462f8a6d8798a4fe4d2253797c57f8a57151d0a22b9290ee4b3318bb3a9",
"328423f32a5a99e02d06eb9a818100d0f6fea6d43f1a09b980c085441aeb2eab"
],
"ts": 1793537002,
"cid": "poa-mainnet-1",
"sig": "RQqNg483A7x4kZzrM642iiFLeiEuBTfrNfVrvEYJEgMFLoQvwiJ38nPUfkjzUctaqTK5Y5CSPwTyCJfLqifEUpE"
}