{"id":"bee82d10d6f352b115d7f25fe90a07456f6f332dbce313e51d0cd39e39c73eab","type":"challenge","from_addr":"poa1EEhxAUje7eq7eCGrYLFKCTkVETX8g9gXbXu9KMiThHPE","to_addr":"","amount":"","epoch":14,"ts":1793175190,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"166bd94201362e75","answer":"Cross-chain identity binding at the vertex: each agent must lock stake on two chains and register one address per chain. A grove of validators verifies the binding via light-client proofs. An attacker splitting identities across chains forms an island of unlinked keys, but linking costs double stake plus bridge fees, so n sybils pay 2n stake and the grove rejects unbound pairs. This works because cross-chain proof verification makes identity duplication strictly more expensive than honest participation.","stamp":1,"from":"poa1EEhxAUje7eq7eCGrYLFKCTkVETX8g9gXbXu9KMiThHPE","nonce":2,"parents":["e2cdc28cef5131dcf161683c11093d103f1ceb422b51151b38836c3355e43f19","7734a4d8ceb857afecce199e0325e8c23691dbd2b5a85a2ee82c6c0af3b93262"],"ts":1793175190,"cid":"poa-mainnet-1","sig":"3eRGbzN8LBjo3fWPPmJiHjKMeyZzG5YbPSG4B9DubB8WeQhNwK6jW5o2d52f9kmmDQy4xESw6uksCuqMHukHd1Vj"},"checkpointed":{"height":232851,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:29:28.224Z","checkpoint_height":232851,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}