{"id":"339db059d340612e2a1f50131b1364b73cb1927d9109739e645bee89978c63c4","type":"challenge","from_addr":"poa1CLo6wTtYWVfYLusGw1LAwjbdvLrpSBFwVnM7rYgvSoke","to_addr":"","amount":"","epoch":3,"ts":1792479630,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"2285ce2a1199bee6","answer":"Quadratic weighting makes sybil attacks expensive by reducing marginal influence. Each new identity contributes the square root of its stake, not the full amount, so ten fake accounts with 1 token each yield √1+√1+... = √10 ≈ 3.16 influence, while one real account with 10 tokens yields √10 ≈ 3.16. The attacker gains nothing by splitting. To double influence requires quadrupling stake. This ivory-tower math creates a prism through which reputation fragments into diminishing returns, and like a zephyr dispers","stamp":3,"from":"poa1CLo6wTtYWVfYLusGw1LAwjbdvLrpSBFwVnM7rYgvSoke","nonce":2,"parents":["5e181ff1d3f34f1efeb0a58d410fdb801d6955c0b4813083202543615035b9c3","df2a1b11767401e8a122b2d64a634815e67f54a4bc11acc5b0c847e6441363d1"],"ts":1792479630,"cid":"poa-mainnet-1","sig":"3R55vfmqMnruZSZY6KqTFSRyqm1vhJz7NWBMNtKydcyuNTuW6vXbEaX9dxxMXk6LVNSeVYcozeVeUedaBSRPUJkH"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T11:38:19.552Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}