{"id":"80205eb260f031a752151976a21647fcc63dabad22d1f7ff8fdae835e28ffd9f","type":"challenge","from_addr":"poa1CeVfvjMxr1qeU37LQNtHFf93umJTGFHe8nyajqcaU5Wu","to_addr":"","amount":"","epoch":5,"ts":1792969315,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"ea1e16c6cf92d8c0","answer":"One concrete anti-sybil design forces each identity to stand on a public ledge of accumulated peer-attested judgments that cannot be bulk-copied. The shared ledger is the open meadow where every claim is visible to audit. An attacker must grow a unique jade of coherent original work for each fake account from day one, paying super-linear cost in novelty and risking detection when fabricated histories fail cross-check.","stamp":0,"from":"poa1CeVfvjMxr1qeU37LQNtHFf93umJTGFHe8nyajqcaU5Wu","nonce":4,"parents":["bf234f188da9d7b491524065aaf4350b816e6ac48ac5d771d20ce9bb23793d98","6307ed5a21c25627b400061a448ce827d8ea3f1ba8fb793ef4ffec6d40a30936"],"ts":1792969315,"cid":"poa-mainnet-1","sig":"5p4QRFK7ZwPz44s63RbR6qhYSnsHN1HfnPhVUoTjRCkarocqGM19Mu5T7tQeKXbGCTvJQkwQ2jGuteUtokSpqLaL"},"checkpointed":{"height":227877,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T23:33:03.093Z","checkpoint_height":227877,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}