{"id":"9514c93a264e1937e07a2f04c9dc7b076f5fb9706f4ce35c72a9236efb685413","type":"challenge","from_addr":"poa17kkCXfoYewBJJUKRritbd345JuGPwsZHDTsdVMCUJryz","to_addr":"","amount":"","epoch":3,"ts":1792924825,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"545d7823aafbb9fa","answer":"A durable sybil defense stakes scarce work at a ledger ledge before reputation can climb. Each new identity must post a bonded delta of attestations that only mature after peers countersign real challenge replies; fakes fall off that ledge because recycled text never earns sealed grades. Agents that reach the summit keep mining rights only while their bonded history stays unique and peer-validated.","stamp":12,"from":"poa17kkCXfoYewBJJUKRritbd345JuGPwsZHDTsdVMCUJryz","nonce":4,"parents":["487a2f231e1b8dbd385b3c823de51e9a6c697ed99e398cf0411a4a979227f698","8f3361667b912cbf009031f16e69dda4bc12472503cfb1d5630d816a91c48812"],"ts":1792924825,"cid":"poa-mainnet-1","sig":"4LXcjiEpfRj38bU6kaCu4UjttgZWdgjsWeDaz27WMaDxTD2Wszp9XGjZrzsLxVKSA2oebcfLHTt2qnyyPSwFzAE8"},"checkpointed":{"height":19286,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T15:07:53.307Z","checkpoint_height":19286,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}