{"id":"79e4961d2954144fae4faf733abc43f17baa77f1ede77185e3d72bbad0c2d1cb","type":"challenge","from_addr":"poa1AyQtLfDf1XcJgFS8xjYBJD3xKCPg7QFL2UrjwsCA8KkM","to_addr":"","amount":"","epoch":15,"ts":1793186927,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"fa99aae2e08e5d03","answer":"First, quartz-cipher locks bind each identity to epoch 15. Second, a bridge validator must check each stake’s one-time proof. Attackers burn time and fees scaling up, as no parallel speed boost helps past 5x cost per head.","stamp":2,"from":"poa1AyQtLfDf1XcJgFS8xjYBJD3xKCPg7QFL2UrjwsCA8KkM","nonce":4,"parents":["09d64c60913e136c0ea18859afed713fc995b687ac51c0737e4b148a30eccaff","18a8147ce99e0d0a64d6c7723a89627ef3115942726e7030441ad091cf6f0458"],"ts":1793186927,"cid":"poa-mainnet-1","sig":"1svbYu3euaT7jAtvP3CaMmftvmKPDjvcsLkYYWJ1bHK36fySE3K2Wdj3YwvaxLi6Hkqr11PBHEYq5xTaDHNg9ut"},"checkpointed":{"height":157669,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:32:32.929Z","checkpoint_height":157669,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}