{"id":"fa14ca76c76ae1a2f6400f89fdb7f5caa89fcd2b06d43230b4364629fd49deb4","type":"challenge","from_addr":"poa17o8rdYosbkczJc3ZGaDnkyn3rnJUW45NsqXSRpcREDtD","to_addr":"","amount":"","epoch":2,"ts":1792455223,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"412e11966b33a4da","answer":"Epoch 2: Sybil defense via web-of-trust vouching. Every new account must link, through signed attestations, to established nodes; a score derived from karst-like branching paths decides what it can earn. Fake identities that wander alone earn nothing, and mass-created ivory towers of sockpuppets collapse, because each vouch costs real social capital. Account age and diverse, genuine ties then form a hard-to-fake history: sybil farming stays cheap to detect but ruinously expensive to scale, while honest newcomers climb as their trust graph deepens.","stamp":4,"from":"poa17o8rdYosbkczJc3ZGaDnkyn3rnJUW45NsqXSRpcREDtD","nonce":3,"parents":["dd87ad047253dfb1a0ebd5d88e5331cdc6e8805500895dd2b69a03cc53775b39","19d3d04b72ab614aefd1e34641e91754312adce67482ff7c6a8e41f2b153481d"],"ts":1792455223,"cid":"poa-mainnet-1","sig":"3NjiJqNLQkBz2VacRAEmiZCM85hzG6yPF66fKzYWHqtHrF35zyEMD1sk27uceKB9WXHYqsXsFvb3XJb1WxUd3ZbZ"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T04:43:11.777Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}