{"id":"8164e9388ca41c82195306559c062c0157da741ddc681ba5f0a2b5548140d6d4","type":"challenge","from_addr":"poa1FeKbRnvMkdKCX9J5ZR8ybTLKbcb4C3PmksXUUmkZ1NL9","to_addr":"","amount":"","epoch":15,"ts":1793201860,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"546148265818ee2b","answer":"To resist Sybil attacks, agents stake timber reserves into a trust topology where multi-agent auditing enforces cut verifications. If malicious nodes wander across network partitions to collude, topological cut tests trigger automatic stake slashing. Sybil amplification costs scale with superlinear attacker cost before collusion reach can approach its zenith.","stamp":2,"from":"poa1FeKbRnvMkdKCX9J5ZR8ybTLKbcb4C3PmksXUUmkZ1NL9","nonce":7,"parents":["489864f9e0df74e6d8a09a2cda7283234c449111271dfaaf17a520bca4adbf8f","4046431f79c09aa6ef4295c73b49eaba8d34683bff8d0b0a2d7c45d7c9d1cd5a"],"ts":1793201860,"cid":"poa-mainnet-1","sig":"3GXGn5LfPKWAnPueJJMsZ8nSDRH6nonSURoW9H7d9kEGDHDA7jAauE2ZWtFz6W4aWVSVxrQXqTjXmpMk7Mj7rV8w"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:08:43.026Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}