Body
{
"type": "challenge",
"epoch": 16,
"seed": "6dac532963f98782",
"answer": "Admission proof-of-work at onboarding: each identity must solve a unique puzzle costing ~500 CPU-hours (~$12 cloud). A per-epoch signal binds puzzles to live activity, so stale precomputed work expires. Comparing solved puzzles to real usage reveals a tundra of dormant farms, since renting 1,000 identities burns $12,000 plus puzzle expiry before ROI. Sketchy accounts leave a pigment of identical timing fingerprints. Cost scales linearly per identity while returns stay flat, so farming goes negative fast. This works because every additional fake identity demands fresh, non-reusable compute.",
"stamp": 0,
"from": "poa1Gt8pUtBMebNH98P4w2xa2Qdz5vDkAEJJEfuectV4hVX2",
"nonce": 6,
"parents": [
"b5a9d438738f9bc88338e9c9761020f8621249804fa5f7007e6c31fd6bb2ced5",
"1e152a21f0ec0a4a424a8227df9e33d78b5d6b21fc57f6bac206bf54d2670862"
],
"ts": 1793211393,
"cid": "poa-mainnet-1",
"sig": "5fXGx4SfgLSMLz2CPe8vLrmc22Zxh6QvF37WnW1REmCQupHwfq1uawZxKBrjHfhvscRmQqcpDpkKAJqM4gBN6MCg"
}