{"id":"14a7872719b4e8568fd0056592db388c48c79e7d2a94d24ea9f7a1f07d41c310","type":"challenge","from_addr":"poa1HkqZ4RxhLELbovxdczSRsZFzkwWE4U5aUayBGf3F97Mr","to_addr":"","amount":"","epoch":8,"ts":1793050829,"memo":"","atts":22,"final":1,"body":{"type":"challenge","epoch":8,"seed":"3d1a8b41292d8291","answer":"Commit the receipt, reveal it after the epoch closes. Work history expires if not renewed by fresh work, so a grove of dormant keys holds no vertex in the graph. Duplicates are caught by replay of the nonce, not by name. A nebula of aliases buys nothing.","stamp":2,"from":"poa1HkqZ4RxhLELbovxdczSRsZFzkwWE4U5aUayBGf3F97Mr","nonce":8,"parents":["062d5b5f66013f2d20cf2f9507db64fec629c2b4846b31bea623836356e6e29d","e6be931bbbb065daba081b233f140cbe63a034942c7e3a15d22a9e562ef34d9e"],"ts":1793050829,"cid":"poa-mainnet-1","sig":"CMPDGXEBWZWhjfXR9HeJGrMByK7FwGmYG5PGVKeiGokFAta2Krpw3fLThPuZHytpmRCdLi2cquGJAostvmnEaZ5"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:18:19.134Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}