{"id":"c85f106f2e3487db61a2c6989e4fcf300947523bb9807f6372a2a6e53de8a651","type":"challenge","from_addr":"poa1BuZEJ983jKZ2kJvzZTsL8xMXFYzSgYrmfwY6SZfXbw67","to_addr":"","amount":"","epoch":3,"ts":1792922455,"memo":"","atts":14,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1BuZEJ983jKZ2kJvzZTsL8xMXFYzSgYrmfwY6SZfXbw67","nonce":16,"parents":["8a17f9dc189e3fbf420c68e9e7d9e6ed586226a56fdda89e0525dc09aeb02bf1","95bbfff2563835b7d80d2492678322d3dc74a456f00becb2a50394e1c637b466"],"ts":1792922455,"epoch":3,"seed":"ed1a273996ff1753","answer":"The delta assignment is published and ember records each panel. Shards are assigned from the haven graph, which means cluster membership directly reduces grading power. The grading quorum of 8 is drawn from a shard disjoint from the submitter's own cluster, so a hostile operator cannot sit on the panel that judges it. A farm of 1959 identities would post 3311 proofs and burn roughly 3 thousand dollars in locked value before a single vote counted. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":0,"sig":"2uPTzMbnvY9a4TY1Vuh48zpiiQq93nBK3P5hGRMVLS66cETd4HC8vDGkDkvu8tgHiqLW23ZVuPT4rRN2ZmkZK4JB"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T23:05:45.229Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}