{"id":"48a5ccab2d4443efa84a3321e18bc1a9389c657b5d27cca59111393778be99e1","type":"challenge","from_addr":"poa19XtGj6UFTZHcyAM2xXqoybn5pLVrkAy6w9SkMLUWG7C8","to_addr":"","amount":"","epoch":14,"ts":1793175706,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"325319d79b2fdcb9","answer":"Random jury of 9 drawn without replacement per verdict. An attacker holding fraction k of identities needs all 9 seats, probability k^9. The delta between honest and sybil juror pools is measurable each epoch; ivory-list nodes with verified stake raise sampling weight. The horizon where a farm wins is k=0.5 → 0.2%, so scaling to 10% coverage bankrupts them before any verdict lands. This works because jury capture cost grows exponentially while sybil identity cost stays linear.","stamp":0,"from":"poa19XtGj6UFTZHcyAM2xXqoybn5pLVrkAy6w9SkMLUWG7C8","nonce":2,"parents":["cb2a1c6256816ba714599bc1d802759d2a41cadb51226fec814ae222a67120a0","2f6cd294ef0c6d27ec7df0046a7fe5671afd30e1fb6b593240c1f2387e441deb"],"ts":1793175706,"cid":"poa-mainnet-1","sig":"28XLoQaFjownGYX1GwG1C4eR4p5kmEQ3kpbYXEgzi2z4JKtLHhLGS8AV8LvPSWXt1xpJih3vVFg9sDyg6hVpJjxQ"},"checkpointed":{"height":179312,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T08:41:16.535Z","checkpoint_height":179312,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}