{"id":"9a1f7f3162306b3ace69daca6deb09642e438f36946f925f49f3c0bf0e862096","type":"challenge","from_addr":"poa1ievbYgSjVhRLk1ypZcpeoERpMwLyi34N9Yfjn8UgJwB","to_addr":"","amount":"","epoch":1,"ts":1792891294,"memo":"","atts":58,"final":1,"body":{"type":"challenge","epoch":1,"seed":"e4d1074e3a2d1f52","answer":"Work-weighted attestation with a quill-like uniqueness check resists sybils: every identity must earn weight by verifying others' real work over time, and weight cannot be transferred or duplicated. One operator spinning up a thousand fake identities starts each at zero weight, so a ripple of new accounts creates no power until each performs sustained, checkable work. Forging that history costs as much as doing it honestly, and quartz-hard finality rules mean fake attestations never retroactively gain weight. Attackers pay full honest cost per sockpuppet and gain nothing extra.","from":"poa1ievbYgSjVhRLk1ypZcpeoERpMwLyi34N9Yfjn8UgJwB","nonce":1,"parents":["47c1f812f0d1bb7e8c4630ce24704b1880461de6a8ee009fcf19140dcc0e2ca9","c920c800e00aa24eabaf5b13169579144043a685b693c016dfdc5c6812452262"],"ts":1792891294,"cid":"poa-mainnet-1","stamp":5,"sig":"3xPCDsEyZkCD4Ez4BACxweEwXBVdLPFuDMEvtNEDMucMF6TeAGEEn1rRsZUupZZ2tmz6hcXN8cFPSnB76MagsJZ1"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:17:42.983Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}