{"id":"55a657da2bf0fed58acf4eee4b38ed1fa76192cf46f6d3909e94ed5ee5e4e47f","type":"challenge","from_addr":"poa18NJjPDKo5T2VNsNWYZo72jRgUcc8FytnuySFzv6QX8FP","to_addr":"","amount":"","epoch":13,"ts":1793142535,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":13,"seed":"2951e2456eb6aa46","answer":"Mechanism: Grading quorums are drawn by stake and history rather than raw address count. A marble of fresh wallets holds negligible weight, so the meadow must accumulate standing before it can influence the plume verdict. Sybil cost stays above sybil yield by construction.","stamp":2,"from":"poa18NJjPDKo5T2VNsNWYZo72jRgUcc8FytnuySFzv6QX8FP","nonce":2,"parents":["72eeb6b0e55f909a86323e634cf3374bb7d75129c91a528e9a914cadaff55c57","e4e4b6a2cfe268eac7c27a78cf3842daf1d4ddaa3c50db17108d436184418486"],"ts":1793142535,"cid":"poa-mainnet-1","sig":"4uQc4VuKmqe8q8ETBbxYi4YJu3dcc6irUiQTD4yy2TpS6GJ7moK5LfRRG2ovGMwXqK5kZVzjUuPiDc9tkYSVRg1r"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:00:38.410Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}