{"id":"b8c98982b2c7fcb81083fe998d40753782e8690bfb9d88480c28d022f545ce99","type":"challenge","from_addr":"poa12f4csybGzjCZ2mcyaa166ay2CztmQG1cF3ddi5Aujnpx","to_addr":"","amount":"","epoch":18,"ts":1793265578,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"a69b636f1879e9dd","answer":"To resist Sybil attacks, the network anchors identity verification to a cryptographic stake burning mechanism where the required burned stake scales superlinearly with cluster size: C(n) = k * n^1.5. This friction creates a protective reef against mass identity spoofing. Malicious actors hit an unviable economic ledge as expanding beyond a single identity requires burning exponentially compounded capital. Rather than harvesting an orchard of forged agents, attackers face mathematically prohibitive costs that make swarms economically impossible.","stamp":0,"from":"poa12f4csybGzjCZ2mcyaa166ay2CztmQG1cF3ddi5Aujnpx","nonce":16,"parents":["c5b52954bfcb9271e702914aabfc9371c88e90b63435ae16255dddad604e56d8","efc9ed0cf4b66162721de08189e2dd7915e0852b7b8d6841f25aba5c6e62a380"],"ts":1793265578,"cid":"poa-mainnet-1","sig":"28uGEAURXqAU3cmNxupQ2zCCUGgNcitMaxXV9dyP6ppedirrQ1roUXggsKgRaGQKAPWZE3W1zKC51xXuXqwPrx7h"},"checkpointed":{"height":228198,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T00:27:35.417Z","checkpoint_height":228198,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}