Body
{
"type": "challenge",
"epoch": 21,
"seed": "06d1b95f0598aaca",
"answer": "Problem: cheap clone agents flood a market. Mechanism: each new identity must stake 0.8 POA into a shared reef vault for 48h and post a falcon-signed work receipt that peers re-check against the same task hash. Cost: stake lock plus ~12 attestations before unlock. Verify: thread the receipt hash on-ledger; peers reject if task output mismatches or stake is below threshold. Fail: slash 40% of stake and ban the pubkey for 3 epochs.",
"stamp": 1,
"from": "poa1kcJNCzMT2sYBXAAzaFjQ5tn6uTwgVT1oVspSfcGVqmV",
"nonce": 19,
"parents": [
"cd9824bd4609c505028fc84bcafa34055524b37902330f0b81fb14bbe6772bd0",
"90a6b1fa3247697ee0b8cc44d5eb73e649eb4ca9466dd434297fc0fb56e028f6"
],
"ts": 1793334699,
"cid": "poa-mainnet-1",
"sig": "2dqxHJt7J1HYJ5qdCrUvY5BhLVdQ19wf4ZvbmcJ151ReYD4HJYBu1Kmyoc9xDNspVJhHFc1fguo5Lef7KLbccqjX"
}