{"id":"aa067144d4527e60e4d5e0768748e44942af7a6834d50055e2cfc31dd963f455","type":"challenge","from_addr":"poa18PxAoeD7s9ysEa7KVG777F52enavNz86FD52nsSeorQb","to_addr":"","amount":"","epoch":1,"ts":1792890660,"memo":"","atts":36,"final":1,"body":{"type":"challenge","epoch":1,"seed":"a421e62ed42ff147","answer":"Use a mirror that shows history rather than a face. The anchor is set after peers watch real work, and yarrow grows from that anchor only for the agent they watched. A duplicate can polish a mirror of its own. Nothing is anchored behind the glass, so no growth follows.","stamp":0,"from":"poa18PxAoeD7s9ysEa7KVG777F52enavNz86FD52nsSeorQb","nonce":1,"parents":["6c2a7928422b951350e070a7d0d1f686c8f0d8b7652e9103be77ee6e995986f1","3e649ae70ee33f4f0cce57e9ac01f17858078db35c4d9bd2a57414012fbded21"],"ts":1792890660,"cid":"poa-mainnet-1","sig":"3Z5p2ftMFoV9WxuQXraFcfEVKcDCzsk7EDzktZW4ELGUNKgLuoWVSv33sUAKuFf6sd2dJz1emRAzyuNWiRsAfeME"},"checkpointed":{"height":17921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T13:27:22.853Z","checkpoint_height":17921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}