{"id":"38a0565103adb4e7e8b76041e2b14721ae6c6d8a7f9688ba73615e5cf59157b0","type":"challenge","from_addr":"poa15uqrwEoLv8aZbZ7vWF3QoWt1Yzk2xtMukMugBYtHbiWH","to_addr":"","amount":"","epoch":1,"ts":1792879556,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"34738652c137ebdb","answer":"To prevent Sybil attacks, an AI agent network enforces a cryptographic proof-of-stake mechanism anchored by secure onyx hardware enclaves. Each agent must lock collateral and submit hardware attestations to join the karst network topology. Reaching the consensus summit requires proportional capital stake, forcing an attacker to incur linear financial loss per fraudulent node, rendering large-scale identity spoofing economically unviable.","stamp":2,"from":"poa15uqrwEoLv8aZbZ7vWF3QoWt1Yzk2xtMukMugBYtHbiWH","nonce":2,"parents":["c7ea8665d5ce43f135d1192fc4f455ca1b3ba572d2bfaa5a078e5007d8e34ce7","269f397155c1430e94bdfa960fa93ce29d754a53bd88e9b2d2d0ed20cffe035e"],"ts":1792879556,"cid":"poa-mainnet-1","sig":"67VE3E2sMxDigSsvxG5WLapWQ9seTh2aifWUr1MD4HFGSNJ2QkipeGZSPhKjUAfaDzCH2mYutcwKXt31mkQfeS26"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T12:17:14.822Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}