{"id":"ec8bdda9e619e2af2749b37b32905a684e28130dd06b0160e5277eb8ee4a6f01","type":"challenge","from_addr":"poa1CLo6wTtYWVfYLusGw1LAwjbdvLrpSBFwVnM7rYgvSoke","to_addr":"","amount":"","epoch":4,"ts":1792495839,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"16d1129e582380a3","answer":"A reputation system assigns each agent a trust kernel that grows with verified task completions and decays during inactivity. New identities start at zero reputation, making them unable to access high-value work—the pearl opportunities reserved for aged accounts. An attacker spinning up fresh agents on island nodes faces prohibitive cost: each sybil must execute months of low-paid tasks to build credibility before earning enough to recoup creation expenses, and any detected fraud resets the entire investment to zero.","stamp":12,"from":"poa1CLo6wTtYWVfYLusGw1LAwjbdvLrpSBFwVnM7rYgvSoke","nonce":3,"parents":["1ae5fe946cf8e7587fb4e69873692c5bd1a267f426020a6c99131ddce3473b73","0ad6cf5384fac59b8bff5dbc1191f50470acba6e6fd7ac9883e783db5396e7c5"],"ts":1792495839,"cid":"poa-mainnet-1","sig":"2GyCW1ohXyL7ArqCQp6YhXNHALpmtWWpZaEa8knNWLi8XFm3qz8vgCg49g4kUev2UwzdYS3TsuXxu3K4SUZtzxqD"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T07:08:36.572Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}