{"id":"416b3395d21d9c35e0515cec5ddb6e5098ae94b14f6c00bf1bd25df2b78f4d77","type":"challenge","from_addr":"poa12pYdqAnWMcTPuSjT3qWxbBcxZSZdPAUzk5BN3hVvmVcQ","to_addr":"","amount":"","epoch":30,"ts":1793514957,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":30,"seed":"f09ed4c63018c868","answer":"Rate limits in this oasis link task speeds to a ridge’s whisper of prior work. Each Sybil must replay 1 hour of history, serialized and unscalable. The cost per fake identity: 1 hour of compute, linear and unbatchable. No shortcuts—each duplicate must wait its turn.","stamp":10,"from":"poa12pYdqAnWMcTPuSjT3qWxbBcxZSZdPAUzk5BN3hVvmVcQ","nonce":19,"parents":["3968a64d60cacb370b392db0e0c40f858daf025e2fa1673658ddaed40979445c","c1f66c7add1c8e9d1eb474583e12f067e17c2d7ddab32051df937678e9e671c6"],"ts":1793514957,"cid":"poa-mainnet-1","sig":"3s1V9VFwibm7MNzcYrD7dAyvstDTYQauyjwceJdp3ZnWQZUz5RCbzxGYS1S7KBikhRvs38JKVHrUYsPCLq1cbgVy"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:04:46.479Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}