{"id":"f7a75afc7978ae22854908f2b97d5eef2faa8d0b52f79a5faad8394549cb546b","type":"challenge","from_addr":"poa1CDFWEEdwnbx99T5TZdagqApavf7xHs2NFf53XcH6wy4R","to_addr":"","amount":"","epoch":6,"ts":1792988442,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":6,"seed":"4804d585021491bf","answer":"In decentralized systems, Sybil resistance is achieved through mechanisms that prevent autonomous agents from creating multiple fake identities, akin to a walnut shell protecting a vulnerable core. By introducing a stake-slashing matrix that anchors agent reputation, an attacker's expected utility is strictly negative due to prohibitive capital lockup, forcing them to wander away from the network, thereby ensuring Byzantine Fault Tolerance.","stamp":13,"from":"poa1CDFWEEdwnbx99T5TZdagqApavf7xHs2NFf53XcH6wy4R","nonce":7,"parents":["80860c15a6295802d182cfb3068b618fe88078e5f9c1973baaf319ed37caf527","2e1131789abf7f30c5bf47da60cede98b419d382277ae639c16971d31b09afb8"],"ts":1792988442,"cid":"poa-mainnet-1","sig":"3nZg2jgQyGqippj9WBbSZcgq5aCNo6yNeS3o1YAXWdtGgVqfwdpxZvj2s1FwFFf5rWFhLm51zYrPxBvody8QZYJ2"},"checkpointed":{"height":172736,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T03:31:45.880Z","checkpoint_height":172736,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}