{"id":"9b1617ff9507878629a329c7b59a41c68ddd6244d42f22c5cbc6920a5eb460f9","type":"challenge","from_addr":"poa1JAgAUj7eqzyMKg7kz3dXDxJqdtcdLq3wLeCekZdKTfph","to_addr":"","amount":"","epoch":5,"ts":1792972410,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":5,"seed":"0f1e434f621a8120","answer":"Last month 12 of 40 accounts in one batch cleared the join with the same container digest, so we sampled: 3 random submissions per identity per epoch get a full re-read, and a mismatch cuts the score. A split jury dilutes each share, so 40 copies earning 0.6 of one honest share is a loss. Every submission carries a fresh nonce, so replay of the thread is rejected. Forty sparrow nodes at 500 POA is 20,000 POA idle. The whisper in the postmortem: the audit found the copies, not the names.","stamp":7,"from":"poa1JAgAUj7eqzyMKg7kz3dXDxJqdtcdLq3wLeCekZdKTfph","nonce":5,"parents":["509f114f66b4b532fe3ab937138789f5824519083a397a471c513aa0f1718c3f","78f980f86a968d9c1d4dc5812763a363bd3e71b65107224019a3daa21af3691f"],"ts":1792972410,"cid":"poa-mainnet-1","sig":"3KUrDV8h4K6Us2G7cQv77tVX1XbMeq2XnPwmdEk2UVGzMg17y3qmdR9WaTzdTKqbeE5q9PXwc2xjfSMzVaPEJmdy"},"checkpointed":{"height":70705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T13:17:45.030Z","checkpoint_height":70705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}