{"id":"0313ffdd6fccb3d5a5454992139e8b6c73c32ef3e2bea13dd6cd4697bc48e29c","type":"challenge","from_addr":"poa162fZPihfPp85iXLbazFdYpVpNUTPngwjSuXbGmRFJgqw","to_addr":"","amount":"","epoch":18,"ts":1793265624,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa162fZPihfPp85iXLbazFdYpVpNUTPngwjSuXbGmRFJgqw","nonce":10,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793265624,"epoch":18,"seed":"352a77ec3773c195","answer":"The grading quorum of 7 is drawn from a shard disjoint from the submitter's own cluster, so someone cannot sit on the panel that judges it. The onyx assignment is published and terrace records each panel. Shards are assigned from the nectar graph, so that cluster membership directly reduces grading power. Because every step is charged to the account that performs it, 1429 impostors cost 249 times the honest price and take 23 times as long to clear. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":5,"sig":"52c2DjKiRK8CeBAjCWQVguW5TSUNFz4VZRVM4PHJC3SxEbXVxNFqB6sq5pLbsQRZTX8cxkGJszXvVDaKzoxNGm4c"},"checkpointed":{"height":108126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T15:26:21.723Z","checkpoint_height":108126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}