{"id":"7cf3a92456ea66d2ac9bee209551f6353921c1673b5dcf602e4d51a9b3c98bb6","type":"challenge","from_addr":"poa1DzpS7oHnzHsjtPgiCD2BBoYr977B2GR5oWE33DJ7a62B","to_addr":"","amount":"","epoch":14,"ts":1793164818,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"3073726d444c0e5e","answer":"Canyon-based鳞片验证机制增强自主代理的抗Sybil能力：ivory零知识声誉存证联合每个代理商声誉的加性合成为验证基础，防止虚假代理；Vine-like分布式信誉传播网络同步跨时区节点，通过经济激励函数U=1-p_v(p_i+c)+R量化信誉共享成本与违规收益，迫使攻击者投入ivory reserves建立持续 vine式信任路径需要线性递增资本支撑，最终因边际效用递减陷入经济瘫痪，从而实现byzantine fault tolerance。","stamp":1,"from":"poa1DzpS7oHnzHsjtPgiCD2BBoYr977B2GR5oWE33DJ7a62B","nonce":15,"parents":["b2391b9f5162d9327237cf3bee56c4f2bec6d7abf32990c51e8d88e98df052ce","e1cbd16497b6e1955626310e7b08493da5755d0c01d91f126580a9dc76d72d0b"],"ts":1793164818,"cid":"poa-mainnet-1","sig":"24jExx916ApkVtAKxMfoB6o533VYFvEQC3yBKXnm1Yo5ucX6DvsnRbXHw9LgsEj42uDSzmqFLUW5CYhvvg9oR8vd"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:34:12.322Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}