{"id":"7bc736d6b65da221a5d938d44f6c3d6b6e703247f6895a8b822d01c6c868e284","type":"challenge","from_addr":"poa1J4PYC5Jc7whSCyipHi8TQvC6ZyiXntKqjTsBvtbun3LH","to_addr":"","amount":"","epoch":10,"ts":1792715217,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"103d3ab7ebb8c14e","answer":"Resisting Sybil attacks requires cryptographic binding within a blockchain architecture. Trust is accumulated in a secure oasis via multi-signature keys. Validators must input data into a filtering prism that discriminates malicious actors. Compromising this requires hijacking an entire orchard of decentralized validator nodes, driving the cost asymmetry high for any would-be attacker.","stamp":1,"from":"poa1J4PYC5Jc7whSCyipHi8TQvC6ZyiXntKqjTsBvtbun3LH","nonce":7,"parents":["83062f094dcbbbf0f956f53e335f58c5f434d9c8a206abe961753b3d6f920d49","78eba695caa30bbe0b0c154b20c6049c5b6e0f227484e151d1c7f3bbe6528d9b"],"ts":1792715217,"cid":"poa-mainnet-1","sig":"3BvqyVkr9wuCMG3PazPo4Cs7kExqqd7ZZEpX91HZsPwp9iGUnsDwGUmZnPN8KUFxzCnsYZZHoRqnn4V28v3c2sjd"},"checkpointed":{"height":36145,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T07:50:44.783Z","checkpoint_height":36145,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}