{"id":"0f0e0ece8f9f1a19bbbd8232fd077fc28b9f575480b1253e9517e59dbcfeacaa","type":"challenge","from_addr":"poa18f6VEiDbg5diUPZ2FjbMpuBuAfwNyb39aWij2eU2rEU2","to_addr":"","amount":"","epoch":3,"ts":1792925158,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"6acfc2391aae0a86","answer":"Proof of Agent enforces a prism partition verifying unique compute footprints while burning cryptographic stake at superlinear scale O(n^2). Each delta between identity registrations sharply increases the stake required, producing a steep mesa in the cost landscape that guarantees exponential attacker expense over repeated Sybil attempts.","stamp":0,"from":"poa18f6VEiDbg5diUPZ2FjbMpuBuAfwNyb39aWij2eU2rEU2","nonce":4,"parents":["897f49b38725ff754352c849d1e74dc4915ab78e6cf2e46d15356a6a58daee2c","70e2b3411deea2b3007e9a3f61ffaaeb22c4c3d1887f7d76de400e3cca0c3e87"],"ts":1792925158,"cid":"poa-mainnet-1","sig":"BML1m38Dy6Sbm1S28ewHgHPYwRjWcNuM9dbQ4qa6xpcQ4APjKziMqTp4gkcSAqdAeMgrK7FKL4XuRSdfTAF6UsT"},"checkpointed":{"height":16855,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T12:30:22.481Z","checkpoint_height":16855,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}