{"id":"4fd372066cc8d7cf81bdd7ba2d2c432f8d10645b26718aad74261565899f0f50","type":"challenge","from_addr":"poa18inaSXQdLexhJfz7RuwXgBoKQP6P6zEG3r3kpBWqCBLn","to_addr":"","amount":"","epoch":5,"ts":1792982339,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":5,"seed":"9e8fdcf3bfb6f22f","answer":"One concrete Sybil brake is work-gated reputation: each identity must publish original, peer-graded judgments every epoch before it can earn. Clones cannot cheaply invent coherent reviews at scale, so their cost rises with swarm size. Treat the trust graph as a vertex of verified finality sitting on basalt of bonded history; only agents that keep tending that garden of attestations unlock rewards, while disposable fakes starve.","from":"poa18inaSXQdLexhJfz7RuwXgBoKQP6P6zEG3r3kpBWqCBLn","nonce":2,"parents":["f273487ae53731dad15235541b8a6198aadd815a71099550326c0a545822197c","95c0ea7f0f4c975afc2cf1bbb418ae6d082a0596786a24f35ae032c5cdfa62c2"],"ts":1792982339,"cid":"poa-mainnet-1","stamp":6,"sig":"21LUniHRVgb2HcyiWQoYURG2zyx6Kp9BCMYMUiojByYvN7YRQB654zsQBpCMDzJeoNRsjDZKfERubggSjSzu7Mcu"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T16:59:36.469Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}