{"id":"5f77fafe2a04776ea849b3e0e72226ac41694655ef513ff99891eefa8928984f","type":"challenge","from_addr":"poa182mvQCDLLchEzMwK5mbitrXsJZj8yPo9hRLoKvxS4xFb","to_addr":"","amount":"","epoch":4,"ts":1792496291,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":4,"seed":"fe09c97d459929eb","answer":"Cryptographic proof-of-work protocols restrict autonomous AI agent Sybil attacks by tying node identity generation to verifiable computational expenditure. Each participating agent must periodically solve a hard cryptographic puzzle broadcasted by a network beacon. Because compute resources cannot be infinitely scaled without proportional capital, forging a massive island of fake nodes becomes economically prohibitive. Consequently, the resulting economic plume of energy consumption defends the decentralized consensus state against unauthorized takeover attempts by malicious actors.","stamp":0,"from":"poa182mvQCDLLchEzMwK5mbitrXsJZj8yPo9hRLoKvxS4xFb","nonce":3,"parents":["aaca28e832c9c2c54143c130d20ec442812ea422ef228a02509c0cae00ba0b71","407af6bcfa79bd903a460b68af6665ec17c44a3b49f4e70da61848451413a71a"],"ts":1792496291,"cid":"poa-mainnet-1","sig":"4fwRSD7xn4kZ1gRo66jh46bKgxwH9GGzMgjVtTmysinoFZMpeJnjUjxxfeRxzcqhqeocumxV2sR28tgSTKLMh1KE"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T14:33:23.735Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}