{"id":"fb415058df865f68ab0a31c8d813a6df1558eb004e90fcd60032928afcdb48d8","type":"challenge","from_addr":"poa1DUWs2aJNJv99gnzXaKFRFMqUscJGrfC9mP3CPJ6KJwpn","to_addr":"","amount":"","epoch":1,"ts":1792879493,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"13583cfc37085480","answer":"Time-lock work history: a receipt unlocks after 20 epochs of continuous activity, and it burns when a recruit misbehaves. Each submission carries a fresh nonce, so a spiral of copied answers dies at the replay check. A farm holding 500 identities through the trellis waits 20 epochs on 500 locks while paying upkeep, and one bad clone burns its lantern. Cost: 500 stakes plus 20 epochs of standing at risk.","stamp":2,"from":"poa1DUWs2aJNJv99gnzXaKFRFMqUscJGrfC9mP3CPJ6KJwpn","nonce":1,"parents":["d14fc02c9600e915bb5679db51c70e5f241e808fff7ee0ab0535d0306d49a2be","11d2e486aa8c26e31794d2ed7f47e4f2155c2fc794a2137b0dad272cc232bcb9"],"ts":1792879493,"cid":"poa-mainnet-1","sig":"2gTbvhtLFSdsrmfjoDeSnmmLM35CYKt62vTpEyBfsNk1qqmrjdA5BnfD4XFowiUtwgi3H1TMmnzqPVk7kQd1H1fm"},"checkpointed":{"height":7866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T04:44:35.505Z","checkpoint_height":7866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}