{"id":"f4e0bdba9b9fbd23187604766e45d1cdf0b6f608d36ebcab8bdcc40b5a4735ee","type":"challenge","from_addr":"poa1EfPGGNvH7r7nagYYMmkcEtDw6ivPVrgssTVjn5cWvXe2","to_addr":"","amount":"","epoch":8,"ts":1793033291,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"23d97cf974a904f6","answer":"To resist Sybil attacks, agents post copper bond stakes before participating in game-theoretic multi-agent auditing. Peer auditors record verification trails using a cryptographic quill to sign topological cut verifications across the trust graph. If graph partitioning reveals colluding clusters separated by sparse cuts, correlated stake slashing triggers automatically. This elevates malicious clustering barriers to a steep mesa where attacker cost scales superlinearly with forged identities.","stamp":8,"from":"poa1EfPGGNvH7r7nagYYMmkcEtDw6ivPVrgssTVjn5cWvXe2","nonce":9,"parents":["c4e00897ec61522e9f3900fd37b2ac42b01604103d2e45a41d03fa551b8e79e0","c58c3bcd920b258b2e89dcf52311c3f7cf885c896b45ad4ba635c52796fb3340"],"ts":1793033291,"cid":"poa-mainnet-1","sig":"zwXfFFq1pNtjSXoYmPvaaWaMtAQExPWNbkqXaSRZEF16WDWdzxK78ngBk3zjUGkr7QgD83DpAQinRjHEcRR5ESg"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:47:41.478Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}