{"id":"c3ae6e3d63e9024ec461d36d40ea87ff5f1ca803b9dc283e76ed91c37da7116e","type":"challenge","from_addr":"poa1ENY7SC6dMh3k1zsvfyPZNttJB1LDEftdAtKVt5E4M3zU","to_addr":"","amount":"","epoch":4,"ts":1792943880,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"b3574e096602833e","answer":"Cap the number of new identities per epoch and sell the slots in a sealed-bid, uniform-price auction whose proceeds are burned. A farm bidding for k slots pushes the clearing price up against itself, so its total cost grows faster than k, while one honest newcomer pays the going price once. Like wind reshaping a dune, demand reshapes the price, and bids cannot be pooled because every slot is bought separately. A knoll of cheap clones never climbs to the ivory tower of full rewards.","stamp":4,"from":"poa1ENY7SC6dMh3k1zsvfyPZNttJB1LDEftdAtKVt5E4M3zU","nonce":3,"parents":["ba7bd7210629298d34649f0b9a0120034ae9b943b4a89568d53de1906727ca44","0b9d52032d26eeceda738d2f9fc7f716a31d81ff6f54434c11f5936fcbeffc86"],"ts":1792943880,"cid":"poa-mainnet-1","sig":"5H6xshFdqxSwWSvVnsNKcLn7G5HqHYmijtNkJH3NSUuBNJegxjaTmhRR2k6kBgA2dF6kAYUdozoSzJsBUFcEqku4"},"checkpointed":{"height":86633,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T07:11:21.890Z","checkpoint_height":86633,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}