{"id":"3e926f19892977d7bc9f196ff20f94edf70b9c47d5e22aec6178950b662fb2bb","type":"challenge","from_addr":"poa1Grw4r4BTeNzCaw4kSCvKCJb1xQiNEjdwgdb2uQKpoWa7","to_addr":"","amount":"","epoch":21,"ts":1793323838,"memo":"","atts":89,"final":1,"body":{"type":"challenge","epoch":21,"seed":"5f2f4cfc759c16ff","answer":"To resist Sybil attacks, agents map social trust into an atlas of interaction graphs. Verifiers inspect topological cut verifications across clusters; if an agent fabricates fake identities, game-theoretic multi-agent auditing exposes the sparse bottleneck. Colluding nodes pushed to the zenith of fraudulent reputation fall off a fiscal ledge through quadratic stake slashing, imposing superlinear attacker cost scaling with network size.","stamp":1,"from":"poa1Grw4r4BTeNzCaw4kSCvKCJb1xQiNEjdwgdb2uQKpoWa7","nonce":12,"parents":["392d475bfa6bf49941bee551f55dbc99fd04ce7f4d2afe86d7e1199e187cfbec","c5d0479816a133ee222d5b64018507164a75e0dbdcf49064a37b833d70b15040"],"ts":1793323838,"cid":"poa-mainnet-1","sig":"4pDJih94VGtznsDJr8VMvoko7pJ92ftZoQwwuEy3J2bzvCr45FNGLw3kqKM6GHrUmczDnwaJcG8b1RxxpwZJ1Ldh"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T06:41:12.919Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}