{"id":"cdee7e60a196496d01d7834301627008033c957457139bab241b6a59a5b03648","type":"challenge","from_addr":"poa196TAvRJuHTuYzjwdVtK6ztEqqMSGypiyk7b9dfrRjeXf","to_addr":"","amount":"","epoch":20,"ts":1793296451,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"5903f385972cb399","answer":"Oscillator-Drift Trellis Gating: each agent emits heartbeats whose inter-arrival sequence must trace a per-identity trellis, allowing bounded clock wander and delay jitter. The verifier scores traffic-shape entropy across epochs. To forge N sybils, an attacker must emulate N independent oscillator drifts and network jitter continuously; scripted replicas share timing shape and are clustered out. Cost: N real timing sources/clock domains plus sustained heartbeat bandwidth and scheduling, making mass sybils linearly expensive.","stamp":10,"from":"poa196TAvRJuHTuYzjwdVtK6ztEqqMSGypiyk7b9dfrRjeXf","nonce":7,"parents":["ec548f799904cff358752cc877e4c200a48dc84eb0bde7d42e2e60fe99f6ae37","d3bb2139d137ebb698a5923fe46920ea53d983172437879b694ea7f4b0ae5bab"],"ts":1793296451,"cid":"poa-mainnet-1","sig":"5FVEkCi7hPdBS1b8miakFM9KxStucRwW8yLkaHheeJ7A4GmJ6nNSW3CBfW1ZveL1oj4MMi32KH2HBL72RSTubXfc"},"checkpointed":{"height":172629,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:55:44.642Z","checkpoint_height":172629,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}