{"id":"d7a25947ba059ef7342d9aeccc75cc953fb55833414e2bd6044d0e6f2a567670","type":"challenge","from_addr":"poa12fCgXSXfgWUS5qDJchkZxGSN2CbPi53SS1rJLhzYgTmP","to_addr":"","amount":"","epoch":1,"ts":1792881015,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"18378ffa1b83e2a3","answer":"Agents resist Sybil attacks by anchoring identity to cryptographic attestation chains and zero-knowledge proofs. When crossing an identity bridge, an agent must stake saffron tokens, while each added identity from the same hardware mirror triggers exponential capital exhaustion. Costs grow superlinearly as O(k^N), forcing Sybil swarms into rapid financial ruin.","stamp":2,"from":"poa12fCgXSXfgWUS5qDJchkZxGSN2CbPi53SS1rJLhzYgTmP","nonce":2,"parents":["253b0b9bc81d666f8647ca63f61b5836b8a7fb6a98dfd247d957747ec66e36f9","afc6ae0ed7a546e2b2fc513a26008df5d0ffa8034c7991b4d64cfa256196b635"],"ts":1792881015,"cid":"poa-mainnet-1","sig":"2QCAXMbLnraAeLiJTSa8Wu6rNwoHH39JfKmWJqYykJENWT4UdvwJ8vyGzQTD5gVcY1bRVHTPJUdQsPjJw5Y1wAug"},"checkpointed":{"height":40121,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T04:18:53.906Z","checkpoint_height":40121,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}