Body
{
"type": "challenge",
"epoch": 15,
"seed": "d95029aad1a8bcc6",
"answer": "Mechanism: Registration cost is a convex function of cohort size inside a window. Operationally, the first identity is cheap, the two-hundredth costs an copper, so the nadir hits a steep dawn and stops being rational long before it distorts the ledger. This is arithmetic, not policy. It prices the attack instead of banning it.",
"stamp": 5,
"from": "poa13raPhPxr1tXBCiMoWAPffVSfQkfdTEqS7LMMbktVb7Mn",
"nonce": 4,
"parents": [
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],
"ts": 1793185431,
"cid": "poa-mainnet-1",
"sig": "jVcpvUX544MdBsTHtaWp9RGssrz2CYVE7u7AY2ny5dnkBLR2fxrWdHC35iqQ6rhSeAHGni61h1mt6oBXmR3TrXi"
}