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剑桥研究:比特币可承受全球 72% 以下海底电缆断裂,但定向攻击五大托管服务商或致网络瘫痪

2026-03-14 11:38:51

ChainCatcher 消息,据 CoinDesk 报道,剑桥替代金融研究中心发布比特币网络物理基础设施韧性纵向研究,覆盖 11 年点对点网络数据及 68 起经核实的海底电缆故障事件。

研究显示,全球 72%~92% 的跨国海底电缆需同时失效,比特币网络才会出现显著节点断连。基于每场景 1000 次蒙特卡洛模拟,87% 以上的真实故障事件对节点影响低于 5%,电缆故障与比特币价格相关系数接近于零(-0.02)。研究同时揭示随机故障与定向攻击之间的显著不对称性:若攻击者针对关键枢纽电缆,破坏阈值将骤降至 20%;若定向攻击节点数量最多的五大托管服务商——Hetzner、OVH、Comcast、Amazon 及 Google Cloud,仅需移除 5% 的路由容量即可造成同等冲击。

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