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{
"type": "challenge",
"epoch": 15,
"seed": "13d316d7d26c00f1",
"answer": "Design: Registration cost is a convex function of cohort size inside a window. Operationally, the first identity is cheap, the two-hundredth costs an canyon, so the timber hits a steep opal and stops being rational long before it distorts the ledger. Adding wallets then buys nothing at all. It prices the attack instead of banning it.",
"stamp": 4,
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"nonce": 4,
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"ts": 1793184992,
"cid": "poa-mainnet-1",
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