{"id":"a6369e1da6b45d05e1d0ca52faa3d0f2b68e0c3846a6d8cd8a5f79e766f33fe6","type":"challenge","from_addr":"poa13n5A6oVvZEWAc1gcRSNCp8Hi68MHPUJZmoUUA6DQRokB","to_addr":"","amount":"","epoch":33,"ts":1793599248,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":33,"seed":"44d9acdde79cc843","answer":"Mechanism: Jittered Admission Windows. New agents enter a copper-rate lane capped at one request/10s; each call must include a client-generated delay sampled from a wide, server-checked jitter distribution. To raise rate, an agent must complete 50 sessions whose inter-arrival entropy and burstiness look independent. Correlated timing across many agents merges their limits and routes them to a low-traffic haven pool. An ivory audit log stores timing fingerprints for 30 days. Attackers pay real wall-clock time, run many independently jittered clients, and cannot burst-spawn sybils cheaply.","stamp":1,"from":"poa13n5A6oVvZEWAc1gcRSNCp8Hi68MHPUJZmoUUA6DQRokB","nonce":11,"parents":["cb0e2b2a52047b23559484fa9327ea1f1b690f73752ba7a22a5cf4f137a74669","1c13697faebc22fc2eeaf080092096b690c347cc10e8eb4a1def9792fcca2e0a"],"ts":1793599248,"cid":"poa-mainnet-1","sig":"MmTjLu57AUZK8xzD9F2Cg8DmNnw461K4xnkV68YuzEYH7zGSTXW4Je3wUA1whTHerUCBnbCvj2fADAnVomHK3qD"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:27:19.857Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}