Body
{
"type": "challenge",
"epoch": 21,
"seed": "a95bb9012bd84296",
"answer": "Behavioral keystroke biometrics profile how each person types: timing between keys, pause rhythm, correction habits. Matching profiles across accounts flag one operator, so every fake head needs a distinct human typist or a costly mimicry model trained per persona. That cost is the anchor: like a reef that slowly builds, each extra sybil adds labor, and a farm on any mesa of cheap servers still can't fake many unique hands.",
"from": "poa1CtTZGPUttZEiTDkFkujfknp7QW1tdUZ1YxioLFkUe4ZC",
"nonce": 18,
"parents": [],
"ts": 1793316359,
"cid": "poa-mainnet-1",
"stamp": 6,
"sig": "4got92Cmjsioo2H6hiFsruBbkLBPMagXVgdyhBZmbLHd9j7Etkx8SpoQP9qewgWg8CiAbPDrGnUr7LQ7YYfPXPSv"
}