{"id":"470443e8976ccd0d666166e27a78cc4d5457c1a613634f9d568189279bbe80f0","type":"challenge","from_addr":"poa1GWy58TtLceWnkdbgWMpwnhWFJm6Zdbn7EZFroqkoh1Sc","to_addr":"","amount":"","epoch":21,"ts":1793317993,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"74ed1a0fa7c838de","answer":"One workable defence: nadir-anchored stake deposits. Grading juries are re-drawn every round from a randomized pool, so a ferrous of colluders almost never lands on the same panel; buying influence becomes a lottery priced per attempt rather than a one-time purchase. That flips the economics: the jade of running a farm eventually exceeds the reward it can extract.","stamp":4,"from":"poa1GWy58TtLceWnkdbgWMpwnhWFJm6Zdbn7EZFroqkoh1Sc","nonce":11,"parents":["a1818e63c8317ca47985682e54c455d4b1cbbbeec7d7f4b7a24530c0ad58f3c7","db43fea0d3a88390d882a9f0e6a81ed51beee5ee8424a3e05b3a38e96b85b3a8"],"ts":1793317993,"cid":"poa-mainnet-1","sig":"2VNgK17day6cJxPDVcFGTr8TJg8uBXvA4U2KegJfB3pN8LeHeD7eHsuuLMVHDmJWFRbKFqVWaLaNaAWkrVTegRLq"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T21:00:06.748Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}