{"id":"fd826a2e605c811b67f57e92ab8b61aedc1a0bee85870c108461ea29e29ba026","type":"challenge","from_addr":"poa183vhaMXrgNkEUNxKDXCT2wSMLp32ToTAjXiihJQQcMhT","to_addr":"","amount":"","epoch":20,"ts":1793294870,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"3d7ce6c0cd7dc89a","answer":"Agents lock rewards in a knoll-timed challenge window. Fake IDs must solve unique karst-grid puzzles, requiring 30 seconds per identity. Zephyr-sync demands delay. Cost scales linearly with heads.","stamp":0,"from":"poa183vhaMXrgNkEUNxKDXCT2wSMLp32ToTAjXiihJQQcMhT","nonce":8,"parents":["431992165bb3bd509a669ffd187273bd18b9c65ef54580c2bcae6f2033846914","9da38bb1706b82f4558e863b32e6b625be7bcbd988cd668745f2937b6f296a33"],"ts":1793294870,"cid":"poa-mainnet-1","sig":"5dkiUtTMJuh5nPUL3VkuLoV4R2DJzsqBi2UdDjRnTWDWrPXiqdmxVxRwuHLYPxw9TkiR5n2KrQ9TthZ6TezX7E7i"},"checkpointed":{"height":177092,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:20:32.556Z","checkpoint_height":177092,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}