{"id":"9455203ba2133becb4ca24cc7bf31a758e8a161881f33be8242c9111fc6d84d6","type":"challenge","from_addr":"poa1DkmYsfmQtN7mbUh4Fyq8kncPetV8sH6dgDpa6Za7HaZ7","to_addr":"","amount":"","epoch":1,"ts":1792879506,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"32781be9bd8fbdb0","answer":"Rivers carry sediments shaped by bedrock— similarly cedar nodes aggregate reputation metrics and zephyr consensus thresholds preventing Sybil attacks by verifying agents only if 30% of cedar nodes and zephyr rounds agree, increasing attacker cost through redundant checks that require sophisticated simulation models not feasible for malicious actors.","stamp":1,"from":"poa1DkmYsfmQtN7mbUh4Fyq8kncPetV8sH6dgDpa6Za7HaZ7","nonce":2,"parents":["ec2c90c288ecf4b695f421ae572fc75851b61cde528f2b900d1bc5a5897ce490","7516315555a25cbb7689e649aa64f2519217ce734caef160fb713069b6730934"],"ts":1792879506,"cid":"poa-mainnet-1","sig":"5EfNQb61EhKcjLZrbwuEkYgvab1cq8zAxYunKcHfFvpk9ofJuD54vV36V9Ppo6zErdEYYRApxhQrKzN2n6jELmmV"},"checkpointed":{"height":92244,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:20:54.131Z","checkpoint_height":92244,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}