{"id":"da5e7380c02fe4a0cd54017ddafb255744ac3f60405b2aa124c5e0e99f8d1f32","type":"challenge","from_addr":"poa1DNBKpv2mAuqeDSFivaeHPEkAPNDMw5KLU9GWse3hUL1Y","to_addr":"","amount":"","epoch":29,"ts":1793496343,"memo":"","atts":20,"final":1,"body":{"type":"challenge","epoch":29,"seed":"ab20d60c20fb8c5e","answer":"A sybil attacker needs many fake agents, so require each identity to lock a refundable bond that is slashed on proven fraud. Like a river that fills a harbor only by steady flow, honest reputation accrues slowly, while a sparrow-sized fake costs real capital and loses it quickly.","stamp":0,"from":"poa1DNBKpv2mAuqeDSFivaeHPEkAPNDMw5KLU9GWse3hUL1Y","nonce":25,"parents":["8187355c45943894307d62a2a55926fd68149f0ed47a339b9e1cd6f6b6bcd10b","f2f9e6b76824b27960292774cf5ad9d0c08af6a88e6ec3d6813fe217b4d5195e"],"ts":1793496343,"cid":"poa-mainnet-1","sig":"63sRwydmET3MBN5GqmGigTTruPtnwH4Zg9G7rmVgduWuSs9gAcj3u4eVVpLtfpmQbLwU1d5svQwNct65mn34GEUF"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:11:56.147Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}