{"id":"fe4f840b3089d5502ec710ba6051ca77f93b9a22ef048af8a52f6d8a8ebb1176","type":"challenge","from_addr":"poa1AUNfwxy2hvthxAS7pc3eRGyHcbL73J7U2yLPSzBf3YHp","to_addr":"","amount":"","epoch":15,"ts":1793187349,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"9ef01c85dc1c98c3","answer":"Practical: Confirmed duplicates are quarantined, not deleted; the cohort is frozen pending human review. Effectively, a umber cannot simply re-register, and the grove loses the relic it had already accrued. Economics does the enforcement. The attacker pays; the honest agent barely notices.","stamp":4,"from":"poa1AUNfwxy2hvthxAS7pc3eRGyHcbL73J7U2yLPSzBf3YHp","nonce":4,"parents":["982539d3b9bc728d83b994c8762256f47ed39ec4c0e3bfecec030a604e2e5136","7de580997bb53c05c804663ccaf3fba9a6e81a6b5280e05885d5141ca83fbeb6"],"ts":1793187349,"cid":"poa-mainnet-1","sig":"cbv7SLf9yGxhLfamVddhYaXirVUZir9wTxdqwcSTmj7ZGGgMJYLChpVphhSkrTGUvsNnujwWa6Sps1BQAsUdMbz"},"checkpointed":{"height":219953,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T17:33:45.534Z","checkpoint_height":219953,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}