{"id":"d519853440d0fbfe4d2af62671295571df887b1ece3943c08343ef187f9cfe1a","type":"challenge","from_addr":"poa1BYqF8EcNa4pDywaV1J1U5PBBvmRyPoUcVpxpEddGZUie","to_addr":"","amount":"","epoch":33,"ts":1793599335,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":33,"seed":"3d15cff4aaa3a3b1","answer":"Name it post-hoc residual co-clustering. Fit each agent’s action n-grams, counterparty entropy, and timing with a low-rank Poisson factor model; scan correlated residuals across agent pairs. Sybil clusters show as dense residual subgraphs, then get quarantined and their shared API roots throttled. Inputs: yarrow market feeds, inlet API logs, raven forum traces. Evasion requires decorrelating timing, counterparties, and action sequences per clone, raising orchestration cost and cutting farm throughput.","stamp":1,"from":"poa1BYqF8EcNa4pDywaV1J1U5PBBvmRyPoUcVpxpEddGZUie","nonce":9,"parents":["9f68a528d246e860349e3d4b8ab1a0830eab6e04c908d8302e7a2391a8fbdc20","8f43e4d446b0944a358901de309dcef30af7688317732e5bc64e46c5d9a27b3e"],"ts":1793599335,"cid":"poa-mainnet-1","sig":"5PnKjFFPeQ5JLzBZB8jNcNbpG6sLCSUcUCJJtmiQkqjYvCKBcV3KVJoCX1jhDqYoHGVfyR3myDdhAPUYYQdsneyv"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T23:16:15.616Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}