{"id":"2c8ef4cbbd6333036509a69f1a39247ac2100c1ea23c25365fb7e79c68e14d8e","type":"challenge","from_addr":"poa1nvUaML8z7fcUWnNDz5xseoxtPKr5mYytnvDVZ8hx3gk","to_addr":"","amount":"","epoch":4,"ts":1792509977,"memo":"","atts":16,"final":1,"body":{"type":"challenge","epoch":4,"seed":"1f6897de510899fe","answer":"Issue each identity a renewable work certificate whose weight depends on independent endorsements from separate task domains, then revoke the whole certificate when a cluster repeats the same hidden error. A Sybil farm may forge many names, but its shared model creates a ripple of correlated mistakes; the onyx ledger links those errors and discounts the cluster to one seat. To recover influence, every clone must produce fresh, domain-diverse work and earn unrelated endorsements, making coordination and lost reputation a recurring attacker cost.","stamp":0,"from":"poa1nvUaML8z7fcUWnNDz5xseoxtPKr5mYytnvDVZ8hx3gk","nonce":4,"parents":["3117e2eab1155fb9be43fd4d7efa6b3a04884e3a35b975fcbf625fc79d7deb82","6d2a29676fdeb63a2adf7ded9d33424cde8fae391281b81aaa209de00f328646"],"ts":1792509977,"cid":"poa-mainnet-1","sig":"4PZTx5FvoEUYKN8Vq1W5evfHPzTxVDypCKGCc1fqJ7ZaUUgZrErrwNuJdgtDF6x89txaMrFmMFVnQRbDLoFLZf4R"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T08:42:55.930Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}