Cardano 創辦人查爾斯·霍斯金森（Charles Hoskinson）支持的隱私區塊鏈 Midnight 於 3 月 30 日正式上線主網，這是他個人斥資約 2 億美元打造的第四代區塊鏈基礎設施。通過向 3,700 萬個錢包進行空投啟動後，估值一度突破 10 億美元，目前約為 7.762 億美元。
Midnight 的設計哲學：解決加密貨幣的三大核心障礙
霍斯金森認為，加密貨幣十多年來始終無法大規模普及，根本原因並非監管或市場波動，而是根深蒂固的使用者體驗問題。他在訪談中表示：「我八年來一直在問的問題是：為什麼革命沒有發生？」他的診斷指向三個核心缺陷：過度複雜（用戶需管理私鑰）、過度透明（每筆交易都可被追蹤）、以及不可逆轉的損失風險。
「最後一公里是簡潔性、隱私性和規則，」霍斯金森說，「缺少這些，區塊鏈將繼續被現實世界拒之門外。」
Midnight 的「選擇性披露」機制是其核心創新：用戶不需要交出敏感資料，而是透過加密方式回答「是」或「否」的驗證問題，在不暴露底層個人資料的情況下完成身份或資格的鏈上證明。霍斯金森描述的願景更為遠大：「你不需要了解加密貨幣的工作原理就能使用它。你只需輕點滑鼠，進行身份驗證，它就能正常工作。」
Midnight 技術設計的四大核心要點
選擇性披露：加密驗證方式回應是否問題，無需暴露底層個人資料
混合隱私模型：部分數據保持私密，其他數據在必要時仍可驗證，消除隱私與可驗證性的傳統取捨困境
無私鑰設計：用戶無需管理私鑰，消除因操作失誤導致資產永久損失的風險
雙代幣系統：NIGHT 代幣用於治理與安全（投機端）；DUST 代幣用於支付交易費（實用端）
空投啟動、銀行採用與市場估值
與多數依賴創投建立的加密項目不同，Midnight 由霍斯金森自籌資金，並透過業界規模最大的空投之一啟動分發——上線時已覆蓋橫跨 8 條區塊鏈的 3,700 萬個錢包。市場反應迅速，估值一度突破 10 億美元，代幣 NIGHT 交易價格目前接近 0.047 美元。
商業落地方面，總部位於倫敦的紀念碑銀行（Monument Bank）宣布計劃在 Midnight 區塊鏈上將高達 2.5 億英鎊（約合 3.3 億美元）的零售存款代幣化，成為受監管銀行在維持合規保護前提下使用公共區塊鏈的首批案例之一。
Midnight 的早期應用場景涵蓋機密金融產品（企業薪資系統在鏈上運行而不暴露薪資）、身份驗證（不儲存個人資料的前提下驗證用戶）及企業數據工作流程。霍斯金森強調，Midnight 不與比特幣或以太坊競爭，而是作為互補性基礎設施，為現有加密生態填補隱私與可用性的結構性缺口。
常見問題
Midnight 是什麼，與 Cardano 有何關係？
Midnight 是基於 Cardano 構建的隱私導向側鏈，繼承 Cardano 底層基礎設施，並增加了選擇性披露機制與混合隱私模型。 Cardano 目前全球市值排名第 12 位，約為 92 億美元，而 Midnight 是霍斯金森定義的「第四代區塊鏈」的具體實現。
NIGHT 和 DUST 兩個代幣的功能有何差異？
NIGHT 是主要的可交易代幣，用於治理參與與網路安全質押；DUST 則是專用於支付交易費用的實用代幣。兩者分離使網路使用成本更具可預測性，也為應用程式代表用戶支付費用創造了可能，降低了一般用戶的操作門檻。
為何紀念碑銀行在 Midnight 上的案例被視為重要里程碑？
受監管銀行通常因隱私、合規與資安考量而難以使用公共區塊鏈。紀念碑銀行計劃在 Midnight 上代幣化 2.5 億英鎊零售存款，在維持監管保護的前提下實現鏈上操作，是 Midnight「隱私與可驗證性並存」設計主張的早期重要驗證案例。
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