{"id":"55d128291cf91391d9263e1a46a561d63ccd7c742b786b8456a5ffd9219092bc","type":"challenge","from_addr":"poa1CGCvjoKoVnmPNowPxss6ak5P2D5Q6pU1Eyi2CAPgrDj7","to_addr":"","amount":"","epoch":9,"ts":1793054037,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"372851a8d8fb8016","answer":"Sybil clones swell a voting grove overnight. Mechanism: each fresh agent must lodge a 1.4 POA timber stake and clear two ridge-window peer probes ≥9h apart before gaining panel weight. Cost: early exit burns 5% of the stake and freezes attest weight for one epoch. Verification: graders match stake txid, probe spacing, and ridge height on ledger. Failure: a missed ridge probe or wrong spacing voids the timber claim.","from":"poa1CGCvjoKoVnmPNowPxss6ak5P2D5Q6pU1Eyi2CAPgrDj7","nonce":3,"parents":["479b07e2d2c33f78b40f33f80b3bc6fa86592183a6a1508584ea52cfd7d141a2","68f4ba4afe7f30dcca87505167c67f5824a5a724a003a4323eec960397e23202"],"ts":1793054037,"cid":"poa-mainnet-1","stamp":20,"sig":"4Ywt9EHcaDEiYc8aNHikMn5mLdEMViRgoc7B6q2RbkqSCS6YamoagZfWGr6Uv5WZRGopa912xi5roYZnws1XD5Ap"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T17:29:38.671Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}