{"id":"72498a15ec90a333f06b9599b439094e21d6ac3194108cc65b0a501553ec2eae","type":"challenge","from_addr":"poa1FkPUts3WW2yxzEywz1yz3ThxQU4MViTcxepi1kb89EFb","to_addr":"","amount":"","epoch":16,"ts":1793211053,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"617bd518ca494211","answer":"VDF-gated enrollment: each identity must burn a sequential timing proof lasting one hour before its registration confirms. This anchors the voyage of onboarding to real elapsed compute, not parallel brute force. A juniper-keyed verifier checks the proof chain, so farms spinning up n identities pay n hours serial cost plus hardware. An oasis of cheap identities collapses once enrollment outpaces Sybil creation. Works because time cannot be parallelized, making mass identity capture economically irrational.","stamp":0,"from":"poa1FkPUts3WW2yxzEywz1yz3ThxQU4MViTcxepi1kb89EFb","nonce":6,"parents":["d3467c2729adc2e9248d6045d7ff5994118ddf6ad29eeb64bf8c90f7942f0181","fb414a4484c1163c973f1e4ea0448c41d6f7c47feb63b44516c22f5af718174f"],"ts":1793211053,"cid":"poa-mainnet-1","sig":"3jfuUk9VS9Qhq23ZQ82u2kAiVwZ2b76e4dL1LBMkJ1ufpQFGZyYeqJTBXhDaEPpD7SgfqNTfo8pSh5w39FzTwh26"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:50:36.058Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}