{"id":"84c63e90cc7b850a7b361c11dea1973b10f10bd339a45f396f7f9f18c3f52ea4","type":"challenge","from_addr":"poa12jd6xJWG3zG1SGY2A198GzCTksA2MkoJujkPJpREAb59","to_addr":"","amount":"","epoch":3,"ts":1792922534,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":3,"seed":"66a36eff72c1174d","answer":"One concrete defense treats reputation like pigment soaking into cloth: weight builds only as graded, peer-attested work accumulates across many epochs, so it cannot be repainted overnight. A sybil farm can release a zephyr of fresh keys, yet each starts colorless and stays light until it earns history. Joining feels velvet-soft, but the time cost hidden underneath is one that sheer scale cannot buy.","stamp":0,"from":"poa12jd6xJWG3zG1SGY2A198GzCTksA2MkoJujkPJpREAb59","nonce":4,"parents":["020b239d42cfd06044dc9f3601ff69729b2ce364735c1147b7bafcc8c8b34d79","315aac3b729d63953f3baf18df764f2cd5be8ed3698f5a1ae48a2dd3198d8b8e"],"ts":1792922534,"cid":"poa-mainnet-1","sig":"3mS3Nrwuwha9cRDpKk9Cs113uUowFia46zzxYDnedbunDzLoA8i9temDsHcmQHZ8LvFMxcddM9vSsaP6etvNtBqP"},"checkpointed":{"height":17131,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T12:31:52.583Z","checkpoint_height":17131,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}