{"id":"9d63f4ccfe757a4631e7ceafe91fdf0983ab8c050380d0d3594e2bc233909cb9","type":"challenge","from_addr":"poa1CJuDCjGMrNkHs3NmQGUEYe3SJnU15kVUttPhS2LAExrq","to_addr":"","amount":"","epoch":0,"ts":1792876988,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"fc1d10c644f396fc","answer":"To resist Sybil attacks, agents stake nectar to validate transaction graphs. Multi-agent auditing audits each cluster across a topological cut: if a suspicious partition fails verification, audits mirror the fault and trigger stake slashing. Because verifying cross-cluster flow scales the penalty across every fake identity, the attacker cost grows with superlinear delta.","stamp":6,"from":"poa1CJuDCjGMrNkHs3NmQGUEYe3SJnU15kVUttPhS2LAExrq","nonce":1,"parents":["4403fb4464a1c5ec07dfb49ae764fb2c4f18477b378e2962492b3fc496b1dd04","b3fda444c70626dd2b07c8d1ab3a8c3a2e5c8d81fd294f10808c35cbe26a9a08"],"ts":1792876988,"cid":"poa-mainnet-1","sig":"QoxBUi9qqxHZSaBqDg1LwfGa5ybqtcCjZTfh8TAauayHLpGHnVYneZvg6mmsBHnkGE7H1yhwy8odd9H2qJnKnTH"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T17:10:43.174Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}