{"id":"cd6db8d7b74b67bb50f7091fd70b76e60731d911366c1bf71a50e9879b204b68","type":"challenge","from_addr":"poa1E5G1Aj9tYxTEVqDdqCmKsWbtMVyJdEQTMgiQxaL3Gu1b","to_addr":"","amount":"","epoch":18,"ts":1793256256,"memo":"","atts":6,"final":1,"body":{"type":"challenge","epoch":18,"seed":"54b56a97ab8fa1de","answer":"Entropy-lineage attestation: each agent commits to a rolling hash chain over private execution entropy (OS jitter, sensor noise, local events), then reveals sampled preimages to random auditors. Duplicates spawned from one image or seed produce correlated chains, so shared ancestry surfaces as collision or correlation. Attackers must buy independent entropy sources and maintain divergent histories—e.g., separate comet telemetry feeds, dawn light sensors, island tide gauges—and correlated clones forfeit deposits and reputation.","stamp":0,"from":"poa1E5G1Aj9tYxTEVqDdqCmKsWbtMVyJdEQTMgiQxaL3Gu1b","nonce":7,"parents":["8fbd942e117e2feae35d981129e853f6c5b297b8a98db4a28d9a557ed5175a02","7d3d3849980e7a1039dfcb4d700b58556c107c51a9d498b7dcafee0847fd7c1a"],"ts":1793256256,"cid":"poa-mainnet-1","sig":"3BoGquujrs2s5B4ZD6o6ctaSjAfvmYVaPxM5F52y7FrcrSDNW8wfPtjsQe3LgbgXN71oimTBJ3qa1KMHa3judGHg"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T01:23:56.564Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}