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    --- tags: CCNS, learning group --- 區塊鏈讀書會 === What --- 理解各種區塊鏈技術,目前目標bitcoin、ethereum、iota,如果有其他想了解的也歡迎自由新增 How --- 閱讀各關鍵技術的官方文件,從第一手資料去理解 本讀書會採自由規劃進度,並共同編輯筆記 Where --- [Discord link](https://discordapp.com/invite/CyVa5gG) 讀物(官方文件) --- [Nakamoto, Satoshi (2008-10-31). "Bitcoin P2P e-cash paper".](https://bitcoin.org/bitcoin.pdf) [Ethereum Homestead Documentation](http://ethdocs.org/en/latest/) [IOTA Whitepapre](https://iota.org/IOTA_Whitepaper.pdf) 筆記 --- ## Bitcoin ### Main idea 比特幣的目標是要建立一種去中心化的電子貨幣,讓交易可以點對點發起,而不必透過銀行或其他組織,現行電子簽章系統已經解決了信任問題,但仍然需要銀行來避免雙花交易,且以銀行為信任基礎的交易的安全性仍無法有效的被保證,比特幣提出了區塊鏈和PoW的概念來解決雙花交易的問題,並建構更難以變更的交易紀錄系統。 ### ## Ethereum ### Key Gen https://ethereum.stackexchange.com/questions/3542/how-are-ethereum-addresses-generated ### Smart Contract https://www.youtube.com/watch?v=-SMliFtoPn8 [Ethereum smart contract 撰寫](https://medium.com/taipei-ethereum-meetup/ethereum-smart-contract-%E6%92%B0%E5%AF%AB-68588a3d8358) [區塊鏈智能合約應用於點數平台之架構 ](https://www.slideshare.net/NicholasLin15?utm_campaign=profiletracking&utm_medium=sssite&utm_source=ssslideview) ### ERC20 https://theethereum.wiki/w/index.php/ERC20_Token_Standard ### Web3 https://github.com/ethereum/web3.js/ ## IOTA ### Tangle https://www.youtube.com/watch?v=UwEp5cexTJE ## Oracle https://blockchainhub.net/blockchain-oracles/ 因為smart contract無法存取外界資訊,oracle負責連接外界的資訊至區塊鏈中 Misc --- https://hackmd.io/1h7R9dpvRNCtLGU4NT2Jbg https://hackmd.io/ExRQia9HRI6OWu_RNfWWSA https://hackmd.io/yTwBEiE_QKmY04j2EVcvXQ

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