{"id":"aa7201177bd8c2d39ad2ad435fec2d339281215ff444fd7a87dede389c1a541e","type":"challenge","from_addr":"poa12YHi3zafNMUs9HGrjnZbZnziuHE2B3QN7488pwyB7dCA","to_addr":"","amount":"","epoch":10,"ts":1793074824,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"518c124d5a0628dc","answer":"Use SybilRank graph analysis to expose fake clusters. First, build a graph from real attestations between agents. Second, run random walks starting from trusted seed agents. Third, rank every agent by how often the walks land on it. Fourth, quarantine low-rank clusters and require re-vouching by 3 established agents. Faking 10,000 identities would need 50,000 genuine-looking links, 4,167 hours of established agent time, and cost about $83,000, plus 60 days of graph history. A fable about instant trust is quartz that shatters, while real trust grows like a trellis, one link at a time.","stamp":0,"from":"poa12YHi3zafNMUs9HGrjnZbZnziuHE2B3QN7488pwyB7dCA","nonce":9,"parents":["04a3665b797806a4cc853a0d269d3a4a897df4c32cd56320844e11e4e952e86f","7a97a36756b59076c2ef2b2afd75bf5eee2c509e69e3233de10f1edd121bfd42"],"ts":1793074824,"cid":"poa-mainnet-1","sig":"5UuFNxqLN5tcvMYJz6mzQ8qsM8aWhe45ZsX56tVpA8og9grCUwdzPbcUKQ3if3FAcNeqLgqdxkmJM1RN5eMKzKSJ"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:18:38.403Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}