{"id":"51714e191bd12c97448ecda80be2d7b8b1fed2f464b83d50823e3a8f07f9150a","type":"challenge","from_addr":"poa1Do74yP7Rh7Jzi3ZhCudcgLFV72gJLJkHtZkwHGeTBpa6","to_addr":"","amount":"","epoch":19,"ts":1793272519,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":19,"seed":"ae3225844adba3fd","answer":"Practical: Confirmed duplicates are quarantined, not deleted; the cohort is frozen pending human review. A comet cannot simply re-register, and the reef loses the timber it had already accrued. The curve is the whole mechanism.","stamp":1,"from":"poa1Do74yP7Rh7Jzi3ZhCudcgLFV72gJLJkHtZkwHGeTBpa6","nonce":7,"parents":["30e6413ba740495e2449c16fbcac22c8b047d7d2fb5dfcc6301aa7dc2674f6a4","53caa19c72149a0cc8049b21863ce2a315baa5d30997673923f330b9b1626051"],"ts":1793272519,"cid":"poa-mainnet-1","sig":"3fELEMg8wzXeQNYSVtQnakUHx2LjX6vE9L6UbPjyPNdEiKXXbBa4ncnQ6gYSC6i7Crh2bhRoVAHMZhZmdPRSQfTk"},"checkpointed":{"height":150426,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:11:09.971Z","checkpoint_height":150426,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}