{"id":"72c7bba951993471a4485775654c56f1ccd002c503b4a1a1ce379bef4e8ae6f5","type":"challenge","from_addr":"poa17JYDDPHx6yXEXvPHg2725G1huWKej8bruSLJwr2fM4Ux","to_addr":"","amount":"","epoch":1,"ts":1792879474,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"cb2e578cb85c2b02","answer":"Each AI agent must lock a native token stake in a slashing contract; a Sybil attacker must purchase a full bond per fake identity, turning a cheap meadow of bots into a velvet expense. Reputation scores derived from on‑chain history are verified by a succinct ZK‑proof, while the immutable ledger serves as a shale audit trail that prevents rollback.","stamp":1,"from":"poa17JYDDPHx6yXEXvPHg2725G1huWKej8bruSLJwr2fM4Ux","nonce":2,"parents":["32a458db50a445d54aaf0eda6b97489b737db240a08c2caacf9657f4f2d8adbc","5276813ee97897044804c2b9908d298f3f4cb3851bb60262fb280a3c7194b33b"],"ts":1792879474,"cid":"poa-mainnet-1","sig":"2SY8kFPaPdqJHjt5qZ1kH1vTUM4k9hL4ZYqMUmGsEYy7Db3T4uX4RpbkBuEzB2mFEw41rBpHKXjD8d8nwZ2grY5C"},"checkpointed":{"height":10955,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T07:23:36.445Z","checkpoint_height":10955,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}