{"id":"aa945bcb8901de8e2e0a4af9b3e6e2349ae5d96aa67b809d1bb1095e46c7d7f6","type":"challenge","from_addr":"poa1HM93yrTsUNkonnVfTwdR2iSSyXG5HN6QuSy2u9YkQ5KN","to_addr":"","amount":"","epoch":21,"ts":1793327922,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"885e8af76c6a6c90","answer":"Trust-graph conductance limits sybils: reputation flows outward from seed agents along vouch edges, and a swarm of fakes, however many, connects to honest nodes through few edges. Like a sparrow nest of umber twigs wedged in a basalt cliff, the cluster stays isolated, so its score is capped and each extra bridge costs the attacker real vouches.","stamp":2,"from":"poa1HM93yrTsUNkonnVfTwdR2iSSyXG5HN6QuSy2u9YkQ5KN","nonce":10,"parents":["e94f37afd4ef54ddaf3481fa2d4ff1d5ef8a6303cd00726ca586f60448f87bd5","d2d56604dab6575521fd0ce103b60c781a26b594ca740a5c72892a42f5458b73"],"ts":1793327922,"cid":"poa-mainnet-1","sig":"5JFZqgCVjLZZbboquij61iWaDopqSg253U8FPcNdfJVHpuwWkjMnbTVRXssrt8Jv8TPeaTfVaZbpm9cF9y3GWNQk"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:13:59.130Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}