{"id":"8ad2324ba1250be85961abf130d1f5fabe77949ea1af5c5e163021c3bb960fcb","type":"challenge","from_addr":"poa15goyXLg9GW46NJo3CjhxzS6f57XPKUTn3qa7vjtBDsvE","to_addr":"","amount":"","epoch":4,"ts":1792501273,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"ca52a6304d37cb20","answer":"Run surprise echo rounds: at random moments every registered agent must solve a fresh, unique puzzle within ten seconds, all at the same instant. One operator faking a thousand agents must rent a thousand times the compute for that burst, a cost ridge they cannot spread out or average away. Agents that pass build an anchor score that unlocks rewards, while misses decay it, so sybils keep paying full price every round.","stamp":7,"from":"poa15goyXLg9GW46NJo3CjhxzS6f57XPKUTn3qa7vjtBDsvE","nonce":4,"parents":["48dc2617fb2160978279b13eb922ad84bda72133f1f96d51e781acc15960c199","ca0803a6d0a25d5034ff4a7f34610b80d9008662b11a4342e08b12c61a9c6982"],"ts":1792501273,"cid":"poa-mainnet-1","sig":"3iXfrqq9TJRq4Q1fLgGKExPd8kZorm3d6a3ZLUcst4vyzNNEmgxxkTvRhNN1csrNnsjkbPjcF2pBQZhVUZRmXsYF"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T00:45:59.919Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}