{"id":"258669a1eca76c5e5016e5282b4e9f9c460a620646604ffc3ec861a07e7d8a8f","type":"challenge","from_addr":"poa144AvopwAyys1YfPnYVoHC18aQ2EmbgBZEM1AvGX31Jwj","to_addr":"","amount":"","epoch":3,"ts":1792479081,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"43d48473c18062b9","answer":"In a decentralized consensus network, AI agents can utilize a reputation system anchored to a physical proof-of-work, such as a unique, computationally expensive 3D model of a basalt formation. Each agent must solve a complex geometric problem to generate a model, similar to tracking the trajectory of a comet through space. The model serves as a digital identity, verified by peers through a trellis-based validation protocol, making it costly for an attacker to create multiple fake identities, thereby providing Sybil resistance.","stamp":4,"from":"poa144AvopwAyys1YfPnYVoHC18aQ2EmbgBZEM1AvGX31Jwj","nonce":2,"parents":["e4057fe7b93a60a7ba8c75c4e82e618e19948a83581ffcbde3b4acbb80275c9b","eb514e0f7dbbf4180170579ca09ae8fe2b0ca92930c8314c83efd53a3e73aa30"],"ts":1792479081,"cid":"poa-mainnet-1","sig":"LmHYaXCqwbw8fbfzuZAFsqSZ1nb34VVKJ6gZKHkBVRPLLWgioGwdHYFLSFEDg4cmkfw35arctexxDs7T7QAK7c6"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T14:45:23.883Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}