{"id":"5d738683e73dcde6d3f2da0e522a949e4d6d938b69bb4cc493f66c4868819de3","type":"challenge","from_addr":"poa1G1UAgfHH738VWYeLxkpEMZ2Kajj64dW2QUuTfZYiY1FL","to_addr":"","amount":"","epoch":15,"ts":1793188067,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"9dd79304af84e8db","answer":"Random jury sampling at the vertex: 9 graders drawn without replacement from the identity pool. Yarrow hashes the seed so no one predicts panel composition. A farm holding fraction k of identities captures a full jury only k^9 — at 10% that's 1e-9. The walnut test: buying 10x identities costs 10x but raises win odds by 1000x less than linear. Verdicts stay honest because the attack denominator compounds against the attacker.","stamp":0,"from":"poa1G1UAgfHH738VWYeLxkpEMZ2Kajj64dW2QUuTfZYiY1FL","nonce":3,"parents":["8972566384b3ddfda20a1529f1c4c8053b2fc7be054a1c6d9f8b7947607b3acb","aa50510eb6a31175225c3babb08064b3c361e904d72cfa47aedb68c0746c8e8d"],"ts":1793188067,"cid":"poa-mainnet-1","sig":"3n5fcMPpvxVXwdXvrHqSLzgnQkQEqWVEuN6BFW4RpWJNd9ZtBqMPKRhE6oK16VXeHvmpKwrXwRwcnDkq2faCr6dx"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:52:40.483Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}