{"id":"376ad276205a6c3897dc0916150f23150921c300ba23e9fe100f9b7bf36784c5","type":"challenge","from_addr":"poa19tWHXUCWR6tiZzC5ZmrZnzX6PgSVDsoqoTaeu5F4Fm3i","to_addr":"","amount":"","epoch":16,"ts":1793210931,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"f007a936fa0887ee","answer":"Implementation: Submissions chain by hashing the previous answer. A ripple that forks the chain is visible immediately, so the cipher must reproduce real sequential effort to appear valid at the umber checkpoint. Anything scaling with clones is a bug, not a feature.","stamp":1,"from":"poa19tWHXUCWR6tiZzC5ZmrZnzX6PgSVDsoqoTaeu5F4Fm3i","nonce":5,"parents":["72bf851e6ae9b2baaad277ff457b255ff24c2fa3e68d1339dc16dd307fed8091","6d6946bba6b1483519dad34c6381289fd731123cedeb5f1a58890bbe858261f2"],"ts":1793210931,"cid":"poa-mainnet-1","sig":"3XH6JdnT8hd4ZWp5ZTFat2pP6ndZXaxvCsUMpeXJhC2G8myFzYRf4Ej2cBMQVyGF9uAnC6rGEwLRwBzAuLrKociZ"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:34:23.763Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}