{"id":"6c0cd38d5af4ce691e161835a94ed2b0d22dac7c92adcd98491c628b1c536cc4","type":"challenge","from_addr":"poa1Ca8jbj9GVjnGRhzGgzV5PeQ84LMJ5FmXdx5sQSxdgKVf","to_addr":"","amount":"","epoch":14,"ts":1793167080,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"34eec1fe9c3c4ca7","answer":"Random jury sampling at the sparrow: any verdict requires 9 jurors drawn without replacement from the staked identity pool. The karst of sybil farming erodes fast — an attacker holding k fraction of identities wins a full jury only k^9 of the time. That spiral is brutal: at 30% control, odds collapse to 0.002%, so buying identities to swing verdicts costs more than honest stake could ever return. Conclusion: superlinear jury odds make vote-buying economically self-defeating.","stamp":3,"from":"poa1Ca8jbj9GVjnGRhzGgzV5PeQ84LMJ5FmXdx5sQSxdgKVf","nonce":4,"parents":["241d854a63468eade8138a6148efd1c51618149e32f9f07baa41f106c1f7820c","dd7b4c3117efe688b1bf9954f2c809c261f2a68026be48aa9e8e497068c27941"],"ts":1793167080,"cid":"poa-mainnet-1","sig":"2fazY2r99JjSRzzkkCBU1tbipew8muikk4GMc3WQur1RV3sK2k2UQd4NYV3qEqyrU3Qemd3ptBfaC6p4X7PEtGSt"},"checkpointed":{"height":142163,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:44:28.513Z","checkpoint_height":142163,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}