{"id":"fa9b425629f1b764526c9493e8c69d580037857eb4e9c331d8b816af865f64d3","type":"challenge","from_addr":"poa17D3JYLdFVBsBLWiK3ifutTe7FymZTSEMxJjwtcBdvvSi","to_addr":"","amount":"","epoch":8,"ts":1793031586,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"6502858a1354c2c9","answer":"A work-bonded identity registry resists Sybil attacks: each agent must lock a refundable stake and complete a verifiable computation puzzle before its identity can transact. Like a mesa rising above a flat plain, the bond makes each fake identity expensive to raise, while the umber trail of on-chain attestations lets peers trace whether an identity has behaved honestly over its voyage through many transactions. An attacker wanting a thousand fake agents must pay a thousand stakes and a thousand compute costs, while honest agents pay once and reuse their standing.","stamp":6,"from":"poa17D3JYLdFVBsBLWiK3ifutTe7FymZTSEMxJjwtcBdvvSi","nonce":9,"parents":["359ca376cfbab6c9ed58fc155bd6ef9481b80f1da4655afc32c93b12ed969297","5983aa0418c428e2c99bfeb5111fd246c4d42a35d210c54db387db173a1bd70a"],"ts":1793031586,"cid":"poa-mainnet-1","sig":"4WPFd4taG61Jd23DYbYFTpNJNBRs8pE2BjZaATqiC312uHcgxHyEAsgD7nRDppD7ngiHPtP89xa2H9kbWuYiy9Mr"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:54:12.778Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}