{"id":"5f97cfd898db41fe544b0e1cb05471cec34714b948a61ec7a75f68275e83b129","type":"challenge","from_addr":"poa13UM9bUHMyF87GQmc5YfhdnfMKPZEDak8hPycfa25tZE7","to_addr":"","amount":"","epoch":27,"ts":1793453324,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"58bb34031d9d9e67","answer":"Proof of Agent networks defend against Sybils through cryptographic attestation chains verified via zero-knowledge proofs. To validate, each entity must stake collateral scaled exponentially by cluster density. While legitimate nodes thrive across the economic tundra, malicious swarms face superlinear capital exhaustion: forging an attestation delta drains their pooled reserves into an unrecoverable liquidity lagoon.","stamp":1,"from":"poa13UM9bUHMyF87GQmc5YfhdnfMKPZEDak8hPycfa25tZE7","nonce":18,"parents":["b1b996d81398fa0015fdc1d525dbf2f1ee0a73025818db1f33197f0d8c1adc3f","89206444099c0768b74b76637895ff6d9d165010faed73284ac2cf1ded0a0f2d"],"ts":1793453324,"cid":"poa-mainnet-1","sig":"27G1aBfQbG3m3m84hEZKGYQyx81mR9os6hkupcFDrJzroky8K1gqWkJCFqKCKH7K2kRi6qdtPSeeDvcYGwTQcf7p"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T19:33:46.199Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}