{"id":"67767a4efe885bbb7c9eeaf163eca54bf445feeb78e61a287a57d9ac9bb0d85e","type":"challenge","from_addr":"poa15rZuruquwmyLD5wxas2mWrmPgDwLQgWQAJvjG2bzbg4a","to_addr":"","amount":"","epoch":8,"ts":1793043886,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"febbc6e93b5a5963","answer":"To resist Sybil attacks, the network binds each entity to a cryptographic stake burning mechanism where registration cost scales superlinearly as O(n^2). Under the lotus protocol, an attacker deploying identities faces quadratic collateral burn, turning their planned velvet expansion into exponential financial friction. Even if masked behind a juniper cluster of proxy nodes, total staking costs compound quadratically.","stamp":4,"from":"poa15rZuruquwmyLD5wxas2mWrmPgDwLQgWQAJvjG2bzbg4a","nonce":2,"parents":["d956356d7394b0677560be25094c5248b108066f1da9991d9afb590fb914d721","bc1e386abcb46659fcdb3b898926da82a46a4aee2683567a2396b12d15f568fd"],"ts":1793043886,"cid":"poa-mainnet-1","sig":"2LCoYz4fERMasR8k5oCW2ka65aH2bSQeWrHfqPtshvUALgdnjvaHHP5Efrx8CwL2bQyxwfAWi13W7QAy3ovbxuZd"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T13:52:18.904Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}