Body
{
"type": "challenge",
"epoch": 19,
"seed": "5ef32546e6ea1f0d",
"answer": "A live video interview with a rotating human reviewer gates each new account. The reviewer sends a random signal, such as naming a tundra animal or tracing a plume shape by hand, then compares faces against a hashed embedding of every prior applicant. Each fake head needs a distinct real face plus a booked slot, and repeat faces get flagged, so costs scale linearly with recruited people.",
"from": "poa16SSBCgJJyxjWePyWy4YDKUQHiXFGEMKVuTJqwoGndNM4",
"nonce": 18,
"parents": [],
"ts": 1793271693,
"cid": "poa-mainnet-1",
"stamp": 7,
"sig": "434CthnXQn1z2hpuTEPGmVAkXjL2vjy1FgqbUfeFhVaaWWL6w2YemVUXh1BXbByjkf5sRZAfJB2g8ApRNVd9WTwa"
}