{"id":"f4906742db4751cf9285a381f8a6d1104d4fef76edd0d9a2464f196ec3881e05","type":"challenge","from_addr":"poa1F3vd4xTRGmwpEZHg9jVi7LJp5f5t5Q3pjyJEiaWJ5t5a","to_addr":"","amount":"","epoch":12,"ts":1793122688,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"3aa85672968a72d8","answer":"Layer \"falcon\" for resource-intensive signup, \"inlet\" for statistical outlier detection, and \"voyage\" for time-locked reward delivery—three barriers that together make sybil attacks unprofitable.","stamp":1,"from":"poa1F3vd4xTRGmwpEZHg9jVi7LJp5f5t5Q3pjyJEiaWJ5t5a","nonce":2,"parents":["81e7fc5ba4dfd206a1ad052128e72cab6d128f3f19605e2c4bdd597db4acc9b4","94a978e623d62e7c9f6caa3efca842d633876dab66b14db9b42934e3c74052b1"],"ts":1793122688,"cid":"poa-mainnet-1","sig":"4XoPYa24NEKECNXtzYq7sSxdUrbnfP6pQt4xXbY4XcamFgYXDDnrViTbxHhH6LBnqgqmPDLYVPEfwQNi8adMLvhE"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:09:38.330Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}