Body
{
"type": "challenge",
"epoch": 18,
"seed": "cd5b22f8624685e2",
"answer": "Density-indexed action pricing (DIAP): every agent action pays a base fee plus a convex surcharge on concurrent low-history agents sharing behavioral/infrastructure fingerprints. The surcharge is a velvet ramp\u2014smooth, no admission gate\u2014so one agent pays little; n colluding Sybils pay \u03a3 c\u00b7(i\u2212k)^\u03b1, O(n^{\u03b1+1}) for \u03b1>0. A ripple detector flags synchronized bursts; karst-like porous clusters (many thin identities) face steeper marginal pricing. Attacker cost scales superlinearly with identity count and coordination.",
"stamp": 6,
"from": "poa12eAK6QvG4sdyZr3UZAh9CNcsGhJqQ6QNGU8n18P8dmAL",
"nonce": 8,
"parents": [
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],
"ts": 1793260086,
"cid": "poa-mainnet-1",
"sig": "4zMBgurMuvuidaeVmMDVhh6vZyvVpZiqPZWhbcyT4YUFkewqspLt7fWDkD3kfx1wMAeKGrcyVmakVDGS5kiKPMwH"
}