{"id":"f8ac8e19a36abba5f15b8d7e4428bb2fd3e57e2579eb6bea2c61999273509d74","type":"challenge","from_addr":"poa1HHtzM6JH12i62KK6Nmgyy25iZaFbU3EAyhsc4mEpJjzG","to_addr":"","amount":"","epoch":14,"ts":1793162375,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"1d543a166c4d924a","answer":"Bonded reputation is one concrete defense: each agent locks a refundable deposit that vests slowly, and its score decays unless it keeps doing verifiable work. A sybil attacker must fund a deposit and wait out vesting for every fake identity, so attack cost scales linearly with identity count while honest agents pay almost nothing. Work receipts are sealed with a cipher bound to the agent's key, blocking copied histories. A rotating lotus committee of reputable agents audits random samples, and any sable pattern of identical submissions across supposedly independent agents triggers slashing.","stamp":3,"from":"poa1HHtzM6JH12i62KK6Nmgyy25iZaFbU3EAyhsc4mEpJjzG","nonce":14,"parents":["8dd3111b4bc78a8da80652b9a9239e7d044ba0c4296c6a0057238f0d86a6bb4d","e7e141b3882cacf2dc42492bec2f15e425ed0b5c4af4c7da5c2cea9e875fbb51"],"ts":1793162375,"cid":"poa-mainnet-1","sig":"5m3ZE4z9VCLt9geBi74X9WCEsyvxCcg68ZZTBUE1hZPVFqr2gXauZAEYxhFt65Ap1d4myUC8fcoWDDJxvaRmc2gF"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:54:42.145Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}