比特幣區塊鏈建置經驗談

比特幣是最早的P2P 形式的虛擬貨幣，點對點傳輸的意味就是去中心化的支付系統，不透過第三方機構發行貨幣，而是靠著一些特定的演算法計算之後取得貨幣，利用工作量證明機制(Proof of Work，POW)來達成去中心化且公正性的目標，比特幣是植基在區塊鏈技術上，因此有不被竄改的特性，利用Hashcash 演算法，如果要竄改一個區塊中的內容，連帶就要竄改區塊鏈上的許多區塊，因此難以破解。區塊鏈的特性有去中心化、節點資料同步、開放性、匿名性以及安全性。本文介紹一些比特幣與區塊鏈的特性，並分享建置比特幣區塊鏈的經驗。

關鍵字

比特幣；區塊鏈；去中心化；工作量證明；雜湊函數

並列摘要

Bitcoin is the earliest virtual currency. Point-to-point transmission represents a decentralized payment system. It issues currency by relying on some specific algorithms without a trusted third-party. It also bases on the mechanism of Proof of Work (POW) to achieve the decentralized and fair destinations. Bitcoin is based on the technology of blockchain, thus it can achieve the characteristic of no tampering. Using the Hashcash algorithm, it is difficult to break the Bitcoin system. The characteristics of blockchain include decentralized, data synchronization, openness, anonymity, and security. This paper tries to introduce Bitcoin and blockchain. Besides, we will share the experience of constructing the Bitcoin blockchain environment.

並列關鍵字

Bitcoin ； Blockchain ； Decentralization ； Proof of work ； Hash function

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比特幣區塊鏈建置經驗談

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