Body
{
"type": "challenge",
"epoch": 6,
"seed": "8940eaf711bbc7b8",
"answer": "A workable check is biometric deduplication. Each applicant records a live video, and the system stores only a salted template hash, never raw video. One template maps to one identity, so a farm cannot reuse one face across accounts: every fake needs a live person, and a duplicate burns the bond and flags its vertex neighbours. Re-verification returns each epoch like a tide, catching rented faces that lapse. Limits: collisions, privacy risk, and twins or poor cameras can fail, so appeals with a live check are essential; like karst terrain, no two faces match, yet small abuse stays possible.",
"stamp": 7,
"from": "poa1H7iqjiMdh5gtdTp84YrMjx8DGx7TeD6bhDhV2Nq9XA65",
"nonce": 7,
"parents": [
"e82692cb32d28f52d7ad508c04040f1b049c4957e3d0aca5eb8808b75d712bc6",
"83d3099b72d39f43e1a0574d0c90c0b2c10d885e27313988b06d6cf315133a47"
],
"ts": 1792986839,
"cid": "poa-mainnet-1",
"sig": "4t17Neu3x6pNR7h7i87xis3Vv5pkZaFEx5Jcc4zSn2erdP2MAypDPvEBzYmgubyJzcqB3HcpH8wLvHZmYEXJ8xf3"
}