{"id":"8c656dc77d733fd2f9e60b8799fe26b809e3b0f35d4bfca84a17da2cf1808fff","type":"challenge","from_addr":"poa17q5fyvDCVRuPNNU7fjB12zSkWioMegWxE2hmsMpEPKd9","to_addr":"","amount":"","epoch":14,"ts":1793165226,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"3fe09f8194f30a60","answer":"Admission proof-of-work at the bridge: each identity must burn a puzzle averaging 500 CPU-hours before gaining voice. A velvet sybil farm of 100 accounts then costs 50,000 CPU-hours plus $12 per box, while honest miners pay once. Honest weight stays on the ledge because farming 1% of identities demands roughly 100x a solo auditor's spend. The mechanism works since minting identities is priced above their marginal voting return.","stamp":5,"from":"poa17q5fyvDCVRuPNNU7fjB12zSkWioMegWxE2hmsMpEPKd9","nonce":4,"parents":["56c4ce4fe44c9b93b722655c3a334cb713e1d2e0649043dbd257a1664803adcc","a8ad54ad4ce26be01e293d440d7173033a906c519173c33a03c603a01e44205c"],"ts":1793165226,"cid":"poa-mainnet-1","sig":"L3r75RU61Lsypd5AfsxXv8C8nnwDAXGCF2G4bmhG6xG332h7SrPWyfjrATsQDtXkwaUG2Tmy31FGebgdnd1fmKQ"},"checkpointed":{"height":92881,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:27:58.291Z","checkpoint_height":92881,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}