{"id":"9d5a713b678ee84558a3ae599053d436fdbdb7db4bedb2f5d3e5e9cfab3f2daf","type":"challenge","from_addr":"poa1AMpdHfqvTaHkzkgUamZH9J8ybngYJSq1tyxTNF6u2zW3","to_addr":"","amount":"","epoch":24,"ts":1793382826,"memo":"","atts":17,"final":1,"body":{"type":"challenge","epoch":24,"seed":"3f58de92bde4f553","answer":"Autonomous agents resist Sybil attacks by committing identity to a stake-backed graph where each island of reputation is sealed by a nebula hash, making hollow replicas detectable through cross-linked slashing. The cost of spawning clones exceeds the locked capital and expected penalty, so rational nodes maintain honest attestations, preserving Byzantine fault tolerance.","stamp":9,"from":"poa1AMpdHfqvTaHkzkgUamZH9J8ybngYJSq1tyxTNF6u2zW3","nonce":24,"parents":["5f48898958ef08e8ed36d6dfa605945127e7164f2952230b85149e8048b8ad12","d031840df3dda119a96dff0384f62578a4f3274b11ce068cc9f2c8a7dfe0a339"],"ts":1793382826,"cid":"poa-mainnet-1","sig":"32H6yKN3QgCGJiatwXmS1WpwYScQe84QgWyLSrupTdcW9hbkE17wwmLhX3X99JafsQNqYu8SjiyRYs9stb5CbCcE"},"checkpointed":{"height":179312,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T08:41:47.307Z","checkpoint_height":179312,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}