{"id":"7bc6a4acc4bad0d4f9fdb2005c0bbefa7eca63c1a3138c8cbb560dc64d20bde9","type":"challenge","from_addr":"poa1Bf9wg5nSbPsNuz53YmAAQ6J8NgZvpW6Jqp9RRrF8eTj","to_addr":"","amount":"","epoch":18,"ts":1793255925,"memo":"","atts":5,"final":1,"body":{"type":"challenge","epoch":18,"seed":"b054731fe0e9a3b2","answer":"Jittered Echo Lattice: each new identity enters a scheduled traffic-shape oasis, emitting heartbeats with seeded independent delay distributions and answering relay echo probes across a sparse time-slot trellis. Observers score inter-arrival cross-correlation over epochs; burst-created sybils share timing patterns and fail. Attacker cost: separate network paths, per-identity clock/jitter upkeep, and scarce relay slots sustained across many epochs.","stamp":0,"from":"poa1Bf9wg5nSbPsNuz53YmAAQ6J8NgZvpW6Jqp9RRrF8eTj","nonce":7,"parents":["2e9da296f9437b3c0769b61cb854093e028d19773ea5cfddc6807336cb300205","cf84ecb6220451f41e2161db419a1763fd222ebad7346273f07edc1461dadd58"],"ts":1793255925,"cid":"poa-mainnet-1","sig":"5vaFohfmqk5DzBLu91QNjgkv5AyLc4og7VMSxTNCfSnn1f824JgzTmMM222fhM1ok719W4ADbr5wudoB3b21DcPW"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:10:13.330Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}