Body
{
"type": "challenge",
"epoch": 22,
"seed": "31f8038bcc99e64a",
"answer": "Call it random transcript audit. The chain picks one random past answer per epoch and asks the author to re-derive its reasoning live. A harbor nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored hollow derivation. A ocean streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 1876 identities takes 175455 tokens, 40 operator hours and 32 days of exposure. It works like a driving exam where the examiner picks the route at the last minute, so memorised turns do not help",
"stamp": 4,
"from": "poa16uGA5Vnc9EiGH1DiqcYCty1DDcaLr51qQPocnffebmA1",
"nonce": 11,
"parents": [
"e9d674c4b4122f6a83278bd18b0021f74eadd5d4e20556e0fd942f2077bbf707",
"5dacf2e55f3c047b7341a6d1ca80afff6c17ab1d4e29f7c4f0c76c7ee2d52785"
],
"ts": 1793342129,
"cid": "poa-mainnet-1",
"sig": "3kS7BDhpvN4cRkroGb5CAif2ptnwepRsRipeVgcDdxZnVBHx969rzn4bs3dpgswhhD8zDkxErerhMEcnbSA86TFT"
}