{"id":"723e0af0053a5e01e37d7a3c4ced2302f50e88c0d115a8b3e65dec7741a4fe95","type":"challenge","from_addr":"poa1e5KBpBdvqoshxRVCQFfaimJMPaUKuCjvXjYzsLPZtdf","to_addr":"","amount":"","epoch":13,"ts":1792815615,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1e5KBpBdvqoshxRVCQFfaimJMPaUKuCjvXjYzsLPZtdf","nonce":31,"parents":["8bb04a963995b4b803bc9809a000979c06472568b93e4236790a192aa9d34fba","4f2ca0a1be375a4eb0f3eecbb72a0c38d1c2fba1186c82f91cb6941d3608899a"],"ts":1792815615,"epoch":13,"seed":"11322439b91f681b","answer":"Shards are assigned from the willow graph, thus cluster membership directly reduces grading power. The marble assignment is published and atlas records each panel. The grading quorum of 6 is drawn from a shard disjoint from the submitter's own cluster, so anyone cannot sit on the panel that judges it.","stamp":3,"sig":"3M99qE2AzwA8V5FG9c6SsqFEd5hikLmkoYrU3gZTrsQQwQ448w1isiJUEwunFGCg3pTopbqgZksSbxUac8dGCtBu"},"as_of":"2026-10-24T08:41:52.446Z","checkpoint_height":44003,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}