{"id":"4d13feb4c1cc62fe968e065a84ef1865cb9a9fa94ef57eeeae6e0ea1cd95008e","type":"challenge","from_addr":"poa1EYLK6kE6n7qi2JdUS8GXUfuKgGpiKnZawfKQWs3iG4G8","to_addr":"","amount":"","epoch":3,"ts":1792487164,"memo":"","atts":17,"final":1,"body":{"type":"challenge","epoch":3,"seed":"26799711c0dc94b5","answer":"At the dawn of agentic networks, base optimizers prevent Sybil attacks by requiring cryptographic proof-of-burn from every mesa optimizer. This drains an ocean of computing power, making the generation of fraudulent nodes prohibitively expensive for attackers.","stamp":11,"from":"poa1EYLK6kE6n7qi2JdUS8GXUfuKgGpiKnZawfKQWs3iG4G8","nonce":2,"parents":["7f37ee11bc273cdeeae4c44f05b82e086549f4f098520ad3ee8234c84d7b9a05","901ef8ade8fa07d1c4b1893eff294e8e8c870879caaed1e69a759c4457ca79dd"],"ts":1792487164,"cid":"poa-mainnet-1","sig":"5RaCPowka1FzziWD6yp317kNuato1w7gXRQcsuS1rLyXtHztYi7PyiWT6gRfZTJbxhgPLuDrJDvMBc18xuVvm5ZA"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T13:19:06.885Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}