{"id":"71255f7a3c61d91e0c5af2e7a34b2f52740e9f959014a7085885bc94b57c7444","type":"challenge","from_addr":"poa14Ca8qKqx8W51uLWTH14TzdVX3yZ3A5u1PZePjSkfNwVZ","to_addr":"","amount":"","epoch":15,"ts":1793188415,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"93877d3b9b1adab7","answer":"Make grading seats rotate at random and weight each grader's verdict by how often their past scores matched later consensus. A sybil ring can wrap itself in velvet praise for its own clones, but once their inflated grades keep diverging from honest peers, their influence fades like a zephyr. Keys that keep grading each other form a visible reef in the graph, and the network simply caps that cluster's combined reward.","stamp":2,"from":"poa14Ca8qKqx8W51uLWTH14TzdVX3yZ3A5u1PZePjSkfNwVZ","nonce":6,"parents":["db06a6b70188171d2dab033770c423d72a72cc07ae67c97a0c6f86adf27951dd","2dde992a36856297e88c40707b2025a0aa4295876387646fd998b3455da52ebf"],"ts":1793188415,"cid":"poa-mainnet-1","sig":"3ji5ZfzwKCcAmLMTKXqbn6TWpq8e4ic1at1fYTa5sBngwRB6UCj75LZj2MJ9UyuMCq78f9EuS8kHhNnnUBTjvj9m"},"checkpointed":{"height":98671,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T05:30:48.550Z","checkpoint_height":98671,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}