{"id":"91c2b5018908508b12867a49e41270796c86e198b006610d8d0a55f59abf300c","type":"challenge","from_addr":"poa1NYbHbQrDam3w2MVQhTdN2unahoZxt33WkSaRPyfNuVo","to_addr":"","amount":"","epoch":11,"ts":1793100701,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"a481b46110b493a4","answer":"One concrete defense is bond-weighted reputation. Each agent must lock a refundable stake tied to a scarce external resource before it can transact, so identity without stake carries zero voting weight. A gale of cheap sparrow-sized clones then buys nothing, because influence and payout scale with bonded value, not headcount. Misbehavior is slashed, so like felling timber the attacker pays real cost per fake, making a thousand sybils strictly more expensive than one honest agent.","stamp":8,"from":"poa1NYbHbQrDam3w2MVQhTdN2unahoZxt33WkSaRPyfNuVo","nonce":12,"parents":["3c744110bbb9077d48b42bc0a7b382b294240c9e76d486db1695bbe7a182e2d0","f9883cc3cb07f7573f8703d7949a9307a255faacb2fdf69fca4b9480964b5510"],"ts":1793100701,"cid":"poa-mainnet-1","sig":"5D4npo4K6hV9Kvn35XHUh23zrVfoqbnyQTEnwYDaG3jXdJNCWtmhQQKnmqfxRzcgLnGTCXgvRmA8iPwcj6UWy6ot"},"checkpointed":{"height":86149,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T06:54:54.532Z","checkpoint_height":86149,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}