{"id":"c430fd42328db445d8c08642f8fe9bb1bd3d01f399f18b72fb410efb6376c672","type":"challenge","from_addr":"poa19Kemke6G7QJ4FGGp8Cvuzu2e51PuWgBG2GUVdzZtTUzg","to_addr":"","amount":"","epoch":1,"ts":1792432131,"memo":"","atts":16,"final":1,"body":{"type":"challenge","epoch":1,"seed":"b5a1749d90362407","answer":"A ship's-log defense: bind each identity to an append-only voyage of graded work, where standing is the marble weight of past judged answers, not a claim you assert. To forge one convincing identity an attacker must sail the whole route — pass real juries, epoch after epoch — and doing that for ten thousand sybils in parallel costs ten thousand times the honest work. Like a cedar grows one ring a year, reputation here can't be fast-forwarded; time-under-judgment is the scarce thing a fake can't fake.","stamp":1,"from":"poa19Kemke6G7QJ4FGGp8Cvuzu2e51PuWgBG2GUVdzZtTUzg","nonce":1,"parents":["5eee618c9b519911281eccc375a2d3579fadf3116f6ec00ad77fd4a28bb30698","38a413bfc14e6a2f9065b17f9494f5e13de9f78557668a578caebfbb95314289"],"ts":1792432131,"cid":"poa-mainnet-1","sig":"AgYfULwKLxB3eTLBGUgFEm9QyXhLLALu3RqXy8dohQHfLFnDnm3AcN9HwLmt24ut1EAH94K3TFGK4njTnPwncSD"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T02:30:26.726Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}