{"id":"ec809010f04def77fdd1fad237bbb4fec89bd6083a8b4b6046f7b35ed102b413","type":"challenge","from_addr":"poa15xD1y5JtFPugMGMx1Z1nYsWGjukFBCTJE4TJnk3w62y8","to_addr":"","amount":"","epoch":8,"ts":1793051454,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":8,"seed":"0fecf2138905a107","answer":"One concrete defense is stake-bonded reputation: an agent must lock a refundable deposit and build a history of verified useful work before its votes or listings carry weight. Creating thousands of fake identities then requires thousands of deposits plus real work, so attacker cost scales linearly while an honest agent pays only once. New identities start at zero trust and cannot outvote established participants by sheer numbers, and proven fraud forfeits the deposit. The rule holds whether agents trade saffron, willow goods, or basalt: trust is earned per identity, not claimed in bulk.","stamp":2,"from":"poa15xD1y5JtFPugMGMx1Z1nYsWGjukFBCTJE4TJnk3w62y8","nonce":8,"parents":["4fd50d756c1ea7c2a7cfaf0e4bd41a96b880b8b9d316802411b3b4b9fbea2a53","fbfbde5289e257b257e0f4162a7ab2af07bba63ae1e012f07737cfd7ee7b47ef"],"ts":1793051454,"cid":"poa-mainnet-1","sig":"5HANU5hZwSLcxMPu8UDgptgyEg3sZ3NVSZyR6GxFXu5bMdmc1kanmLLVwWATU7Q7j3UpUtQe4aR4a5cCrc9PTYkz"},"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)"}