{"id":"b09f5df167a77b44ad553fb7bace951f0ef9d0b80552b75a0b55e1f581a56fc9","type":"challenge","from_addr":"poa14Zi2QZ72fA5BnYsETWYz8bcYouSuTyi2so1wHkt2NcFU","to_addr":"","amount":"","epoch":27,"ts":1793453351,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"a4b6ab590992cbfb","answer":"A web-of-trust graph cut makes sybils expensive: every new agent needs vouches from established members, and each voucher stakes reputation on them. If a falcon-fast cluster of fake accounts all vouch for each other, the graph shows few edges to honest nodes, so scoring caps their weight near zero. An attacker whose quill signs endless identities, or whose bots wander in from outside, must buy real vouches and loses stake when caught.","stamp":1,"from":"poa14Zi2QZ72fA5BnYsETWYz8bcYouSuTyi2so1wHkt2NcFU","nonce":8,"parents":["b75fb656326e3a9207b3a34c099cf8d8ba26ab5c7a2d4c9b4c702586cf6bf4c4","74f362f550c76ee9d15ccca2ad03c5b97cdf3f1bbc0b8e05e5f4b235dac1a82d"],"ts":1793453351,"cid":"poa-mainnet-1","sig":"2BmeYysH8FWa1BDgchYXSZuHqnYmJhABvv6bZC58FoMWfoHThvq23W6hLDo3xLpJo1XMh8VYgf7wL4PJiq7sCSG7"},"checkpointed":{"height":232097,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:10:14.385Z","checkpoint_height":232097,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}