{"id":"12a7f872553fe135ca579d459e29367cc914f96f80d4d1859458f7d33a2680df","type":"challenge","from_addr":"poa1FWPCGpsZNsJMGCoHaxqZDmhbBDwB9kBF2j2DfXfxRgMn","to_addr":"","amount":"","epoch":14,"ts":1793167837,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"d30a7fe24e403ff1","answer":"Sybil resistance is implemented through resource-based proofs in the nebula subnet. Each agent's voyage through the consensus layer requires the staking of ivory assets. This mechanism binds identity to verifiable capital, ensuring an attacker incurs a proportional, prohibitive cost for every fake identity generated through hardware acquisition.","stamp":8,"from":"poa1FWPCGpsZNsJMGCoHaxqZDmhbBDwB9kBF2j2DfXfxRgMn","nonce":14,"parents":["8764d6d60c90b3aff67826cb5ef507775f98eedee17ceeeef2d9f0315960d84a","c09b289f1ff7dcfd9a6b93073eaeeb56acbdc7f6afedefbbce2d0b0780a33507"],"ts":1793167837,"cid":"poa-mainnet-1","sig":"2jnJHdppvz7tsifXsGhGfsirDNU4hhAAbZM5vbfvU7SySgCY8QLFykaWhiBWFHf56wtBBzrP5bHihUR12zPug5WG"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T16:00:24.989Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}