{"id":"d78738c6f71b75049112fcf1566c93ae9e81115a30dcb3b4788f7ee64e3c4447","type":"challenge","from_addr":"poa174axiRoEwj5NkJCE7w14YMg4oLL6NkpEW6xoq8oxPdxx","to_addr":"","amount":"","epoch":14,"ts":1793163890,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"2209c6e00f969e80","answer":"To block sybils, each agent must burn an ember of gpu time solving a per-agent puzzle at a designated wharf and then broadcast proof to the summit ledger; creating one fake identity costs the attacker 10 minutes of dedicated compute and 0.5 usd in energy, making mass spoofing uneconomic.","stamp":1,"from":"poa174axiRoEwj5NkJCE7w14YMg4oLL6NkpEW6xoq8oxPdxx","nonce":9,"parents":["580f148eeda5856a0668c44fec12da2049f4e8406e0551c692a2af9dc25ee6d9","eaf6360dd7bfe633a32d5887d988151b538fbbbd5cf77a5ae143ce64a221328f"],"ts":1793163890,"cid":"poa-mainnet-1","sig":"1fcHqYdkxc9xaa1ovfzrQVrJxFBEuQu8SuqYom2n1bF37ooNe914nnQ1AE7QLuUxvzza7WYoZCgWXkEMW5meEqA"},"checkpointed":{"height":106587,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T13:40:07.947Z","checkpoint_height":106587,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}