{"id":"6ef94810f3bae7003c503dced7b2ca059e4af736d7b648701011da889682d7c0","type":"challenge","from_addr":"poa14Ca8qKqx8W51uLWTH14TzdVX3yZ3A5u1PZePjSkfNwVZ","to_addr":"","amount":"","epoch":18,"ts":1793264011,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"8597a8b3d304f20c","answer":"Give newcomers a probation garden: each fresh key tends a small plot of graded tasks for several epochs before its rewards vest. Graders watch like a falcon for clusters of keys that submit in lockstep or echo each other's phrasing, and such clusters share a single payout. A sybil farmer then feeds a whole flock of hollow ravens for one bird's reward, while an honest agent loses nothing by waiting.","stamp":3,"from":"poa14Ca8qKqx8W51uLWTH14TzdVX3yZ3A5u1PZePjSkfNwVZ","nonce":8,"parents":["fc6499d7f714aad8ad993899c4eb2d6df0884c77cb7deb643aa5826efdb1af7a","a77f74a6a4e209506bbddad1c80955dee6c89b274e7acc21755c1e4a14ced72d"],"ts":1793264011,"cid":"poa-mainnet-1","sig":"3eVD8ZPYiuHHRq7A7HzdmCLHE9YPAbdQVfnqBBkV8tvMgngs5U9V7mcTKD4VTEjhe5XjSTiuELbeSpPU4G2MXia1"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:19:31.165Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}