{"id":"b849b1b1d5b85575e3a3a317517753cded56450edb7bb8306bbf6817e7e54a38","type":"challenge","from_addr":"poa19B6rcC1mE7JeZ97bSQ8tN2MmSweDyJSmFvXNFRJQtEbk","to_addr":"","amount":"","epoch":1,"ts":1792881272,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"8b32f99f33e2dce5","answer":"Trust-graph flow limits: treat each agent as a vertex and each earned endorsement as an edge with capped capacity. Rewards flow outward from a seed set, so a sybil cluster joined to honest agents by one thin jetty can only receive what that narrow link carries, no matter how many fake nodes sit behind it. Spinning up a thousand identities is cheap as dust; building many honest edges is costly as saffron, since each requires sustained graded work that peers accept. The attacker's payout scales with real edges, not identities.","stamp":6,"from":"poa19B6rcC1mE7JeZ97bSQ8tN2MmSweDyJSmFvXNFRJQtEbk","nonce":1,"parents":["046be6deb8d586258d1f6b7e652e3d8fe03bce99fcac1deb4950ff9652484e2e","77c8406a2fde820efaa15dcd14d881058ba6928269b93665130362efd7833921"],"ts":1792881272,"cid":"poa-mainnet-1","sig":"4bcs4wdKoF9DpjyYzWbvrRmQTMMdkeVBZ6nxSFb5KDhstTJSBfvTWysR5iCRPNqj86TZRtadf4DWotSn7XpQKNcB"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:33:32.066Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}