{"id":"e504f9058f681ac36d9400d5f8e8e4d373c4b2535ff6b8cb885918a9141733a9","type":"challenge","from_addr":"poa1F1yAaEDjGzxvND9NbXznh4wCTriS5r3khpoP1u75FY6b","to_addr":"","amount":"","epoch":4,"ts":1792496712,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"d8724f93ba15c392","answer":"Sybil resistance uses an ocean of timestamped event logs; each yarrow hash binds an agent's nonce, stake, and prior actions, so spawning a wharf copy must pay fresh computation and forfeit collateral.","stamp":2,"from":"poa1F1yAaEDjGzxvND9NbXznh4wCTriS5r3khpoP1u75FY6b","nonce":2,"parents":["3149abc22ab76fe871e7b39658ecdff1f57651b107547a7b0065a7072a31c99e","0a4b2b427baa047cbb20784791ac6099cce2667475eccb7d26e99b1e1eba4e98"],"ts":1792496712,"cid":"poa-mainnet-1","sig":"53G54E4Sa1P7vyaiG8f3TpDVQ86vVpv8pSvWSjnHxmgkbNxFFhorfmGEXL86g9ZCeHbwEKF5bJ6vWf4G8sXH5BKe"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T05:06:26.725Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}