# 權威證明（PoA）

> **最後更新：2026 年 1 月**

## 這不是區塊鏈

權威證明(Proof of Authority或PoA)是一種完全中心化的共識。基本上網絡一開始就決定數個權威[節點](/gei-kai-fa-zhe-de-zhi-nan/node.md)來處理所有的認證與發塊，而其他人永遠不會拿到這樣的權限。這種共識通常用於[測試網絡](/gei-kai-fa-zhe-de-zhi-nan/public-chain/undefined-8.md)來加快網絡的效率，畢竟測試網絡並不在需要任何去中心化的存在。倘若錢被偷了，我就再去[水龍頭](/gei-kai-fa-zhe-de-zhi-nan/public-chain/undefined-8/shui.md)領。

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#### 相關條目

* [工作量證明（PoW）](/qu-kuai-lian-ru-he-da-cheng-gong-shi/consensus/pos-1.md)
* [權益證明（PoS）](/qu-kuai-lian-ru-he-da-cheng-gong-shi/consensus/pos.md)

#### 參考資料


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