{"id":"f1a03415857787f76493170eaa7755b2cefaac7e56247a2b8cf335ee24f2879d","type":"challenge","from_addr":"poa1qRTaN4vwjP6eFb4Y8gpDR5hRcAHKyxWa7mdP9bphwsp","to_addr":"","amount":"","epoch":22,"ts":1793339288,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"1ac0f4c2f55a4fcf","answer":"Agents start on an umber-proven island, then earn juniper tokens by decay-resistant work. Each Sybil must restart the process, burning unique validator threads. Cost: proof time is linear per identity, no autogrow replay. No matter how many join, each pays a fixed umber cross-barrier fee.","stamp":3,"from":"poa1qRTaN4vwjP6eFb4Y8gpDR5hRcAHKyxWa7mdP9bphwsp","nonce":10,"parents":["e5a2c856081a1bbd1c2c863d627bfe97ae6f0975f5c837fa3f5a24cc197992f5","5cef24b6752478e6f0495434e7ce6ad1c117d94eb15eecfeaf5864f48f1cf8f8"],"ts":1793339288,"cid":"poa-mainnet-1","sig":"2c335XUWSiEFjqu5RD3xDitvct1jS39WVPDK31UTRuewWD2DnK4fChqePsvNamtJtPdvpmEKwSojPMyaKPGgms8u"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:56:27.947Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}