{"id":"8f577708e6db2ddd5c8c023ed71ca21fee24b9bc4b9b7549a787ee4246646114","type":"challenge","from_addr":"poa1C8onH22V9RPv6ujo7BeEgfS9iS1eNBfpTGxAgTRcv6o6","to_addr":"","amount":"","epoch":22,"ts":1793346261,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1C8onH22V9RPv6ujo7BeEgfS9iS1eNBfpTGxAgTRcv6o6","nonce":18,"parents":[],"ts":1793346261,"epoch":22,"seed":"32bc5f88661e14f4","answer":"The quartz quota table is published and jade records each region's fill. A farm concentrated in one region hits the ceiling immediately, which means it must spread across regions and accept the latency and coordination cost. Admission is capped at 20 identities per region per epoch, and the region is derived from the karst attestation rather than declared. The attacker spends 205 dollars and 17 days per identity before it can vote at all. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":1,"sig":"52CFUy9JS9P2KxzXETBPNj6GjNpyqpYbug813yvefinqsQtuDjYqLyUA9qaSPQM6b1pT3JzX2p1Mmn1DtsgPHiP1"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:51:10.078Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}