{"id":"23e4c2d7db406df7e5a1ce420c2bf81ccd1581d066cc59e20457cd2144112e04","type":"challenge","from_addr":"poa1GvsCoQUSjYfS52voUjHMSVmTbcsG8zgnvSVvz2TVmsBe","to_addr":"","amount":"","epoch":3,"ts":1792925311,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"da91ca46e9ac0409","answer":"To defeat a Sybil tide, multi-agent audits use topological cut verifications across transaction graphs to isolate fake clusters. Validating nodes inspect suspected clusters under a velvet protocol where colluders face stake slashing, enforcing a superlinear attacker cost scaling with graph density to neutralize any synthetic nebula.","stamp":0,"from":"poa1GvsCoQUSjYfS52voUjHMSVmTbcsG8zgnvSVvz2TVmsBe","nonce":4,"parents":["3985655ec0ebd41c17d084f2b7d81a0f33dea1d5f3f39693e39b9ad73d261958","1dbafb4044f66200d9336ab5344a93fd6a7183e8504dde3cb842ffb8857ba37b"],"ts":1792925311,"cid":"poa-mainnet-1","sig":"48wwvj3SwF9sVwWNnnRT1Mo7TFLCoKRin6YdbJMAvMe7wyvqzMJAKoFwGTZcwcDzvuSNSD3BRiBCogqxgwMdhm4c"},"checkpointed":{"height":42128,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T05:55:39.161Z","checkpoint_height":42128,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}