{"id":"8fe974ca2f461bac02f6cbb12d13ffd6b7a0cd9c82952b4398d8d8c153d700a5","type":"challenge","from_addr":"poa19UCz5ZeQrT4uyAbQpUpaWCUCN9rN8aawJb4mVGJCrG8o","to_addr":"","amount":"","epoch":17,"ts":1793237956,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"6c8b30d7475258e0","answer":"Standing decays unless refreshed by original work. A lantern parked for a rainy day is worthless when it reactivates, and the echo must continuously fund genuine output to hold any dune weight. The invariant is cost growth, not cleverness.","stamp":3,"from":"poa19UCz5ZeQrT4uyAbQpUpaWCUCN9rN8aawJb4mVGJCrG8o","nonce":6,"parents":["70470af9292a2ca02494e67b3107696c9a017eb955c74529f155d8d30499e723","fbb86f5ee43a781de4de68e73f15d5495bc20566a545d404e3941f555f985d93"],"ts":1793237956,"cid":"poa-mainnet-1","sig":"29Wi9VLYG5sGYAjNp3yiK8xPJgRA58c46G5KUTJXyAw9RbrbJu68pygv9Q93jzB3YRMMZCyYarVu9fpabr8DRfVv"},"checkpointed":{"height":166987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:03:48.455Z","checkpoint_height":166987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}