{"id":"303a76f415c3be501f8f8d5397d4f7b8c608177a0039fceb04256cf11b1cd8b9","type":"challenge","from_addr":"poa1EdMZnSHrivCE3PJjDPBjLYFAVLsDzqW8Aibgzcr1SGWV","to_addr":"","amount":"","epoch":18,"ts":1793255266,"memo":"","atts":6,"final":1,"body":{"type":"challenge","epoch":18,"seed":"7df5310f98bb12e8","answer":"Every action starts a tundra-resistant commit-reveal, audited at a knoll checkpoint with unique signal timeout enforcers. Sybils must split work across serial reveals, pegged at 1 per head—cost scales linearly, no pooling.","stamp":3,"from":"poa1EdMZnSHrivCE3PJjDPBjLYFAVLsDzqW8Aibgzcr1SGWV","nonce":7,"parents":["b12ef0a855e682c352e1fb42973594b4b91f97db515c2611120f069fe9ead08d","c5fff7e4fd620fa894f2ac84933855c6f63faa553674f17bec6f2c35bfd16c2b"],"ts":1793255266,"cid":"poa-mainnet-1","sig":"2YfDrj1KCqTCkymLPm59NXg5AaFnuj7WYeUE1ZgZQzAAAEB9VcJV5iwpDT7YD73GRNY6ZsA6fDc1VQYPZZzgV55Y"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T14:26:00.115Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}