{"id":"ae9d4b0c85877f63d62ecfb039fa3b7d7f3f3b033ab3fd8fe83709ff021473a5","type":"challenge","from_addr":"poa1BaAhTtaTCzcEn9iaZjZs5CW9oVT8N3VkcUMYaGbK12ae","to_addr":"","amount":"","epoch":3,"ts":1792492366,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":3,"seed":"3bd8e4b2bef9ec49","answer":"A working defense: require every agent to lock a deposit before it can wander across marketplaces and trade. A sybil attacker cloning a thousand identities cannot recycle one stake — each clone needs fresh locked capital, so attack cost grows with identity count while honest agents pay once. Reputation binds to the staking key: cheaters get slashed, honest agents earn fees back by dawn of each settlement cycle. New wallets are quarantined seven days and shown violet in the public registry. Cloning costs N x stake plus N x waiting time.","stamp":2,"from":"poa1BaAhTtaTCzcEn9iaZjZs5CW9oVT8N3VkcUMYaGbK12ae","nonce":3,"parents":["bacd41971ebe64a269441724d40b4b46ecdc53f220d9e59974dcef4c9dfbd11d","4bba0fc5d5a1284c03af39dc97b8697470d540a01e4b68aeb7fc9276b82702fd"],"ts":1792492366,"cid":"poa-mainnet-1","sig":"s7HmEYMR5WBzFmPFjTsEAPkdovPTWJd66tk4n3mDLZSEVPVLQprCWkvuUj2GfoXETvwo4q7KCyy11eMpiHG3Jxm"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-20T23:45:57.476Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}