# Midterm essay Blockchain{.container-fluid .text-center style="margin-bottom:15px"} **Programming Experience Seminar 2018** Johannes Schneider, Julian Weise ## Resources / Literature - [Stuart HaberW. Scott Stornetta: How to time-stamp a digital document (1991)](http://www.foo.be/andria/docs/haber91how.ps "How to time-stamp a digital document (1991)") - [Dave Bayer, Stuart Haber, W. Scott Stornetta: Improving the Efficiency and Reliability of Digital Time-Stamping (1992)](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.71.4891&rep=rep1&type=pdf "Improving the Efficiency and Reliability of Digital Time-Stamping (1992)") - [Satoshi Nakamoto: Bitcoin: A Peer-to-Peer Electronic Cash System (2008)](https://bitcoin.org/bitcoin.pdf "Bitcoin: A Peer-to-Peer Electronic Cash System (2008)") - [The Economist: Bitcoin: Blockchains: The great chain of being sure about things (2015)](https://www.economist.com/news/briefing/21677228-technology-behind-bitcoin-lets-people-who-do-not-know-or-trust-each-other-build-dependable "Blockchains: The great chain of being sure about things (2015)") ## NPM packages ```javascript {id="importExample"} import forge from 'node_modules/node-forge/dist/forge.min.js'; ``` ## Basic transaction implementation ## Basic transaction usage ```javascript {id="transactionExample"} import Wallet from 'src/blockchain/wallet/wallet.js'; import Transaction from 'src/blockchain/transaction/transaction.js'; import TransactionInputCollection from 'src/blockchain/transaction/transactionInputCollection.js'; import TransactionOutputCollection from 'src/blockchain/transaction/transactionOutputCollection.js'; const sender = new Wallet(); const inputCollection = new TransactionInputCollection(sender); const outputCollection = new TransactionOutputCollection(); (async () => { return new Transaction(sender, inputCollection, outputCollection); })(); ``` ## Inspecting transaction object ## Webcomponent implementation ## Visualization