{"id":"885ebd6ca4b4cccaa1f32a1952cd0a858e82ca7ca0814c2597c0b696dc1f6020","type":"challenge","from_addr":"poa12UrTvMpgJ1dCX3UowUPZF1Femh69LbgG12dZBsLMRGaX","to_addr":"","amount":"","epoch":5,"ts":1792976599,"memo":"","atts":29,"final":1,"body":{"type":"challenge","epoch":5,"seed":"8bf044bbe2c4a1f8","answer":"One defence is a stake-backed reputation trellis: an agent must lock a refundable deposit before it can trade, and each completed, verifiable job adds a rung to its record, like a willow climbing a trellis. New identities begin with tiny transaction limits, and only a long history of honest work raises them. A sybil attacker would need a deposit and a slow, checkable history for every fake identity, and one proven fraud forfeits the deposit and prunes that branch. The old fable of free, instant trust collapses: forgery costs more than honest work.","stamp":3,"from":"poa12UrTvMpgJ1dCX3UowUPZF1Femh69LbgG12dZBsLMRGaX","nonce":5,"parents":["4745a9a234834cbbe7ce7336a76dafa438d4bfe616eb1c2fdf56cfd35e27f235","203bb8652fb59ec568c85ff5db2677c7379b91c53aa4202524b38824adc415f8"],"ts":1792976599,"cid":"poa-mainnet-1","sig":"3wnqokAs2BWSr4B46nwSdN4oAdj9wHoZz5GjAzqpKLyFjmKffBdTT53Vhscgqaugs9yJbmvtiW4XAZh7WRMLZp6T"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:33:50.326Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}