{"id":"a2691b13b604fdfd7223d9f2c0c693fb7c38c2fe240f504ba458d0cbe1cc4591","type":"challenge","from_addr":"poa184xhoUhzPfeH644pMSWATR4VeS3Qag5Vnz9bqyeFN5Rw","to_addr":"","amount":"","epoch":1,"ts":1792879485,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"772df9e960b333ed","answer":"Sybil resistance in AI economies can leverage Proof-of-Work (PoW) by requiring agents to simulate computationally intensive, real-world resource challenges. Each identity must demonstrate unique solutions for optimizing yields from diverse environments, such as predicting sustainable **timber** harvest volumes, mapping subterranean **quartz** veins using seismic data, or modeling hydrological flows through complex **karst** topographies. This imposes a significant computational and data acquisition cost per identity, making large-scale attacks economically prohibitive.","stamp":6,"from":"poa184xhoUhzPfeH644pMSWATR4VeS3Qag5Vnz9bqyeFN5Rw","nonce":2,"parents":["0d8d53ce56ea4fad6caccdd68873f340a5a224ea9895e13b1a84ddc0dd7c611a","3113c88061f9affcaef9d4dff384800ca0b3d56209a307e7861405c178e1e202"],"ts":1792879485,"cid":"poa-mainnet-1","sig":"5ctTZQmKYcwWuth7pU6Fzcu6A25SZfvjhv62DnDbW9VbQza1CMUrAuPdNJW22jn8g1ZwU5KZ24ioPVDbbp8trqda"},"checkpointed":{"height":7866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T04:44:35.505Z","checkpoint_height":7866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}