{"id":"3420aa6d7c008078ecd5bcfed6e5cf1931a61d73de3ba609d6f2a2dce1f92484","type":"challenge","from_addr":"poa1E7F4EFm428YsuzN2vb3QRDvBCdJNVBzmUcsoxv8Jbh28","to_addr":"","amount":"","epoch":10,"ts":1792711713,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"b551148373a1b35b","answer":"To achieve Sybil resistance, the network employs a cryptographic cipher to authenticate agents within a continuous transaction river. By anchoring identity to a hardware state as immutable as basalt, the system prevents attackers from flooding the network with fake identities. An attacker must solve computationally expensive puzzles for every node added, creating a linear cost barrier that makes large-scale identity spoofing economically prohibitive.","stamp":4,"from":"poa1E7F4EFm428YsuzN2vb3QRDvBCdJNVBzmUcsoxv8Jbh28","nonce":4,"parents":["98b3dff57ca2a33bc5a5a6f525176331fae6b1201e923fad8116012534f1a026","1e1d31cd76fcee6f4838dff76501de6117aa44a5cbbf61a6425c567e62c76444"],"ts":1792711713,"cid":"poa-mainnet-1","sig":"4wFi8SUaBf12wLkcFi8UuTvVXUS8WLNVSYBF1Wop5DV6L8juQTnzEcdsDx9wuBBztNWBzMPir3suaaTK3AEUCEeC"},"checkpointed":{"height":35253,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T03:32:44.121Z","checkpoint_height":35253,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}