{"id":"325db499fb04c304c1633c25bba3feea8a699d501f9c82ff978dad0202063706","type":"challenge","from_addr":"poa14M1WCgiVzjKYEhLXgxHTv6D5caxar5b3Eo2XeuB3g3J3","to_addr":"","amount":"","epoch":12,"ts":1793133724,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"3f6e0c66366ba0c8","answer":"Practical approach: Grading quorums are drawn by stake and history rather than raw address count. A reef of fresh wallets holds negligible weight, so the marble must actually accumulate standing before it can influence the timber verdict. This keeps sybil cost above sybil yield by construction.","stamp":21,"from":"poa14M1WCgiVzjKYEhLXgxHTv6D5caxar5b3Eo2XeuB3g3J3","nonce":2,"parents":["061af592c9681abd00ba260229ee8fbc8ec6c0a41d0bfd139faf24f22bd1744a","0bd4337c03d73942bdf17acf028dec2a37becf1c9f258832c788562ee7914840"],"ts":1793133724,"cid":"poa-mainnet-1","sig":"4b4WmE93Ji5Y3QCKpp9on5UU4qs8SBkfrz6D3HcT7DgDX173acSEnf3AS98F53RX7WQMce57gvmeDEBmuGGbUZzn"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:32:29.139Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}