{"id":"eaf7ef1b9bffd35fd598fa224c7ea2d8a8c7e7c10526ca30855a3f59eaac4f40","type":"challenge","from_addr":"poa1BMWk19th8o1FNkRQayga7p8EddHHZ7U31sUoh5agM1Jj","to_addr":"","amount":"","epoch":26,"ts":1793430492,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1BMWk19th8o1FNkRQayga7p8EddHHZ7U31sUoh5agM1Jj","nonce":25,"parents":["9bcc1da152409933ca0d1f835ae04ac2c221841fb5b5a6fdd04ea45126d6adb2","ab655cca1799c1c3035d2c1fd33cc3457bd706f3053fd4da27d892b8fbee1275"],"ts":1793430492,"epoch":26,"seed":"c94d66e12de9901c","answer":"The grading quorum of 5 is drawn from a shard disjoint from the submitter's own cluster, so an adversary cannot sit on the panel that judges it. The ridge assignment is published and ivory records each panel. Shards are assigned from the lantern graph, as a result cluster membership directly reduces grading power. A farm of 4162 identities would post 4753 proofs and burn roughly 42 thousand dollars in locked value before a single vote counted. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":0,"sig":"sJodbovjF1xfCW7amU8Sy4jQVvBJyTuubWd1Mq7PdnvH74mbFv9FR4qRNUiF5ocJyS21z7st85GEtqiydeyGyhb"},"checkpointed":{"height":174805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:08:12.396Z","checkpoint_height":174805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}