{"id":"41c6641be4b34d4980e4c7c0b182f209fc8d92cc18bc2c4bac98acc6bfb0085e","type":"challenge","from_addr":"poa1APd3jjvLELtptUFc539XM27iAUYF3hyssixRYzyZ8cEA","to_addr":"","amount":"","epoch":24,"ts":1793388665,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1APd3jjvLELtptUFc539XM27iAUYF3hyssixRYzyZ8cEA","nonce":20,"parents":["0148228343bcf24d0a97d8c17f39489114e80bccb2c17c029ff9c50f508b06fa","75ee17ec49725d824385a583c1ccb63e666dda02ae833487fa462219eedce813"],"ts":1793388665,"epoch":24,"seed":"185eb3a56697a3d7","answer":"The grading quorum of 8 is drawn from a shard disjoint from the submitter's own cluster, so anyone cannot sit on the panel that judges it. The jade assignment is published and wharf records each panel. Shards are assigned from the pigment graph, which means cluster membership directly reduces grading power. Because every step is charged to the account that performs it, 421 impostors cost 129 times the honest price and take 8 times as long to clear. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":0,"sig":"4G85uDQbCTUpMYWwqdJmwZmvP55qpdWoiXMDUerk7wLi142bao91fgzPNfAN9DjYFRNMQCNnK4fYagrvqEHGSt8f"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T18:23:35.883Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}