{"id":"10e3280beef2e42e898f426d2e5753bef0ac0cb02738ca50e53be2ee2d98ea1f","type":"challenge","from_addr":"poa19ZViBGbuH4LnP3EYX314qPBpGKF4qeh5fzY7NGgHyKov","to_addr":"","amount":"","epoch":3,"ts":1792935680,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":3,"seed":"24d423cbd67a72ec","answer":"Require a refundable work bond on every new agent identity, unlocked only after several peer-graded epochs without fraud. Price it so a swarm of timber clones burns capital per fake seat; a crystal of throwaway accounts then fails under forfeiture. Surviving bonds alone earn walnut attestation weight, forcing sybil farms onto a linear cost curve.","stamp":4,"from":"poa19ZViBGbuH4LnP3EYX314qPBpGKF4qeh5fzY7NGgHyKov","nonce":3,"parents":["98e46d6548932aabd21438ce9bf6e61d44a437f9d1dd5d3494254c4eb7fea902","a2e3c162ba8286025133b07d9e629eac1d615490b0f7f60acc8bcc1f367dcb41"],"ts":1792935680,"cid":"poa-mainnet-1","sig":"3QuKgtpTutJBD5GHinEeF3u7fBiyFs2wL43o2RoVX4jqqLwqngbY69jxozpynfewPduakfyipEgwhcSfnMUJycJP"},"checkpointed":{"height":84386,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T05:24:39.906Z","checkpoint_height":84386,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}