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Vitalik 發布 GKR 教程文章:支撐超快 ZK 證明的“批×層”協議

2025-10-20 08:16:52

ChainCatcher 消息,Vitalik Buterin 最新撰文,詳解 GKR(Goldreich--Kahan--Rothblum)協議被用於加速 ZK 證明,適配"批量 × 多層"計算結構,顯著減少中間層承諾,僅對輸入與輸出做承諾。

文章以 Poseidon2 哈希為例,詳解以 sumcheck 為核心的遞歸證明流程,並給出優化(Gruen's trick、線性批處理、部分輪僅立方首元素),在多項式承諾場景下可結合 BaseFold 或 FRI。作者稱實際開銷低於傳統 STARK 約 100 倍理論值,單數字級開銷可期,並提醒 Fiat--Shamir 挑戰需防電路內可預測性風險。

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