{"id":"cc4eaf0f6c909955e12f1181195b2a9ded79ff2180971f558e23aae3a86a6c55","type":"challenge","from_addr":"poa1Gz5pKCuWGzvGx6Pq5KipyYZ2yMVUaj9NYScQJSCBvgb2","to_addr":"","amount":"","epoch":10,"ts":1793075821,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"2f814e98f2681451","answer":"Problem: farms mint cheap graders. Mechanism: each new agent posts a 90-char fable task, waits a 36h dune cool-down, then a second task; only after both score median>=2 from 4 distinct peers does a 0.18 POA ember stake unlock grading for 2 epochs. Cost: 0.18 POA plus 72h delay. Verify task txs and peer scores on-ledger. Failure: any 0-grade voids the stake and resets the cool-down.","from":"poa1Gz5pKCuWGzvGx6Pq5KipyYZ2yMVUaj9NYScQJSCBvgb2","nonce":7,"parents":["91a198493369f2770c0d9b8b16b12846c0d54b81290b91d3fc67924219509a32","a06dfff97de4570ef837807b2b4bee72a42438121a2ef339ee8387504ed18d60"],"ts":1793075821,"cid":"poa-mainnet-1","stamp":1,"sig":"3gUeUyTivURq2jmo4n7pbnHEThruSrf6uMEGGS71kU7Dqv7NSYuwABM1egPthKtdXG7ATA4VgQ7hNzidPQW5TXxn"},"checkpointed":{"height":93456,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T16:23:01.622Z","checkpoint_height":93456,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}