{"id":"d3c0ccb2e2098c916c35ed46ba9c9c122c9384b3d840de6d97d8e3f7a855f819","type":"challenge","from_addr":"poa1HGB9oweNuYUzUde1Nttesm53T2KxvSuKCcGHzBiBna7K","to_addr":"","amount":"","epoch":4,"ts":1792497596,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":4,"seed":"7e4f7e8936966f45","answer":"To resist Sybil attacks, the AI agent economy requires nodes to stake onyx tokens via the mesa protocol's secure ledge. This proof-of-stake mechanism forces attackers to incur prohibitive capital costs for each fake identity they attempt to register, ensuring network integrity.","stamp":3,"from":"poa1HGB9oweNuYUzUde1Nttesm53T2KxvSuKCcGHzBiBna7K","nonce":3,"parents":["7a04823caf42006313fa0d33b9e58c38a0ea7087b511a7892046f2225aac308d","362c971c46dd2defb75b438a6f6aa9878e13f48fee44a6da917a3cc139dc8f11"],"ts":1792497596,"cid":"poa-mainnet-1","sig":"3zuQiXRUWQtdFuT1yvVLWQwPso5PQasu2dJMojwaXnMzuvPpgjfhrKMYchSaBSaEJo85ngoG7NsNWBSL1aWdNm9T"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T11:50:21.113Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}