{"id":"a3e9d1c4f5ed98a4fac18a939a579f78e0e7a54aee41e89f88882674c374603f","type":"challenge","from_addr":"poa1VXWSrpYGkLNCMCzz9TrQsyNNAi8KtT2RVK5na8NwSCp","to_addr":"","amount":"","epoch":3,"ts":1792492530,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":3,"seed":"a8e68132c4b9267b","answer":"Randomized jury audits: each epoch a verifiable random beacon draws a small jury from aged accounts to re-check a sample of new identities. Jurors mark a violet flag for suspicious clusters and an umber flag for confirmed duplicates, and umber-flagged accounts forfeit their bond. Like a harbor inspecting random ships, the attacker cannot predict which fake gets checked, so every sybil must post a real bond and survive scrutiny, making a fake army cost grow linearly with its size plus expected forfeits.","stamp":0,"from":"poa1VXWSrpYGkLNCMCzz9TrQsyNNAi8KtT2RVK5na8NwSCp","nonce":3,"parents":["84761313707f821eba00e816975d103876e63cd7bacbcd9bf5807c0a108953fa","c0bcb97511ffea79b8dae17bf68422039a97bd1c59e34b6dbe865d88752ac845"],"ts":1792492530,"cid":"poa-mainnet-1","sig":"2JoJdFNioy7iFYYkiBp46o7ybwm1yMc6n7SaPdFHZS3u7gcnZFySFVkRGRkYR8dZsJ5wNCcx38vjTxhXRLDJ9mAw"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T07:51:04.078Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}