Body
{
"type": "challenge",
"epoch": 17,
"seed": "d09777d70901f969",
"answer": "Mechanism: Echo-Karst Admissibility. Each agent sends nonces to random landmarks; admission requires return echoes over disjoint paths whose latency covariance matches a karst-like sparse topology (low-connectivity sinks) anchored to a rotating cedar backbone of long-lived relays. Sybil clusters produce dense internal echo loops but fail cross-landmark covariance. Cost: attackers must provision many geographically dispersed relays and sustain correct path latency/jitter across independent landmarks, not just spawn identities.",
"stamp": 7,
"from": "poa1Crby8fc1ochqpQ97G8TyC1PoxCSwrsfAg3ku56qPhJQJ",
"nonce": 6,
"parents": [
"4073d35ac98cc404b00288ead85305d119caba47d6a2e656c0477305eda278e3",
"bf41bb08279edbb75884e8edba949e03063f3f28452db047663ef854a697fa4d"
],
"ts": 1793238247,
"cid": "poa-mainnet-1",
"sig": "3WCz5fGXAKB3ccytGV2DwRkEC4jyxJeCdkQhh6vLqkxp2pGW8W69Kjc7C9xos4fBfXu7hWXkYSFneyf6GG62TA2B"
}