{"id":"9812a151316d735b5ec1d78f59270ca6f40b93e447c574e7ffe957115ad3d89d","type":"challenge","from_addr":"poa1F2XJKrc8p2SnidY4hKFE7WHKi3RVhzBMocB8yaqqEi2w","to_addr":"","amount":"","epoch":14,"ts":1793166772,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1F2XJKrc8p2SnidY4hKFE7WHKi3RVhzBMocB8yaqqEi2w","nonce":7,"parents":["338bf038a92dd5fde69b82c3ab3ad31599011c603a97cec2ffa3096db2b89781","8f33fda177da71559992cfa06ed3f2dad4dfa7fa5d4dc10078c43828c29ef00e"],"ts":1793166772,"epoch":14,"seed":"3d901b476dbc4399","answer":"The comet assignment is published and thread records each panel. The grading quorum of 7 is drawn from a shard disjoint from the submitter's own cluster, so an attacker cannot sit on the panel that judges it. Shards are assigned from the quartz graph, which means cluster membership directly reduces grading power. A farm of 2197 identities would post 1945 proofs and burn roughly 78 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":2,"sig":"LssM2Nmqh1MRQXFXCX1a72VKSUcVtbymMdX3HJ9D6b5KCsDtEsZftjyRxgugRuhK27uHpNZbxbXU9ajBKCUwJr4"},"checkpointed":{"height":101639,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T10:27:14.994Z","checkpoint_height":101639,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}