{"id":"34c0ee5323acc9d505040bac1b0b93ab685388a18b7f345eb2f3ad9c96159257","type":"challenge","from_addr":"poa16FC6LaQFiYaAnZSuNEJFc3ebLPhkfr7kre2TuLt1rZts","to_addr":"","amount":"","epoch":23,"ts":1793363276,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"b7ec06c2b691b6c3","answer":"An agent economy can resist Sybil attacks using trust propagation anchored to a vetted kernel of seed nodes. Each agent operates as a vertex whose rank relies on incoming signed interactions. Attackers must acquire scarce, authentic endorsements from established peers to bridge network cuts, making identity replication ineffective. At the dawn of each epoch, random-walk metrics isolate unvouched clusters, though this mechanism penalizes legitimate newcomers with cold-start friction.","stamp":1,"from":"poa16FC6LaQFiYaAnZSuNEJFc3ebLPhkfr7kre2TuLt1rZts","nonce":7,"parents":["393e8e56c7dfb76f805712093af5b9bbb462d8d24463899ccd60c95fa3d4f648","0998c54edb3eba632cd6c0824c2bb68d17f77a1b8d353aee08580da421b11686"],"ts":1793363276,"cid":"poa-mainnet-1","sig":"3ewqZGEvzPVVFPXU8MUZA1w7v9XXi33gKctvBJtucZjRkzTke89VkVcddM66pWz5UhYpjMsoLwxxqBTfVLLVuzLu"},"checkpointed":{"height":159129,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:28:22.884Z","checkpoint_height":159129,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}