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劍橋研究:比特幣可承受全球 72% 以下海底電纜斷裂,但定向攻擊五大托管服務商或致網絡癱瘓

2026-03-14 11:38:51

ChainCatcher 消息,据 CoinDesk 报道,劍橋替代金融研究中心發布比特幣網絡物理基礎設施韌性縱向研究,覆蓋 11 年點對點網絡數據及 68 起經核實的海底電纜故障事件。

研究顯示,全球 72%~92% 的跨國海底電纜需同時失效,比特幣網絡才會出現顯著節點斷連。基於每場景 1000 次蒙特卡洛模擬,87% 以上的真實故障事件對節點影響低於 5%,電纜故障與比特幣價格相關係數接近於零(-0.02)。研究同時揭示隨機故障與定向攻擊之間的顯著不對稱性:若攻擊者針對關鍵樞紐電纜,破壞閾值將驟降至 20%;若定向攻擊節點數量最多的五大托管服務商------Hetzner、OVH、Comcast、Amazon 及 Google Cloud,僅需移除 5% 的路由容量即可造成同等衝擊。

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