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Author: tayyaba

  • Deploying the Contract

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    tayyaba
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    In this chapter, we will learn how to deploy contract on Ethereum. Click on the Run menu option to deploy the contract. The following screen will appear. The contract name is shown in the highlighted list box. Below this, you will notice the Deploy button, click on it to deploy the contract. The contract will be deployed…

  • Compiling the Contract

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    Once you write the complete contract code, compiling it in this IDE is trivial. Simply click on the Autocompile checkbox in the IDE as shown in the screenshot below − Alternatively, you may compile the contract by clicking the button with the title “Start to compile”. If there is any typo, fix it in the code window. Make…

  • Developing MyContract

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    We will name our contract MyContract as in the following declaration − We will declare two variables as follows − The variable amount will hold the accumulated money sent by the contract executors to the contract creator. The value field will hold the contract value. As the executors execute the contract, the value field will be modified to reflect the balanced contract value.…

  • Solidity for Contract Writing

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    Solidity is an object-oriented language especially developed for contract writing. It is a high-level language, which inherits traits from C++, Python, and JavaScript. The Solidity compiler compiles your source code into bytecode that runs on Ethereum Virtual Machine (EVM). For quick understanding of the Solidity syntax, look at the sample code in the IDE. pragma…

  • Smart Contracts

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    There are several tools available to develop and test contracts. One of the simplest tools is provided on the official Ethereum site itself. The tool is called Remix, we will use this for our contract development. Remix for Contract Development Open the Remix IDE by typing in the following URL in your browser.https://remix.ethereum.org The following screen…

  • Introduction

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    A huge success of Bitcoin raised interest in the minds of several to create their own currencies. Looking at the advantages offered by Bitcoin – a digital currency, people wanted to use the concept of Blockchain in their own applications. People wanted to move out of their physical contracts to smart digital contracts where several…

  • Ethereum Tutorial

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    Looking at the advantages offered by Bitcoin − a digital currency, people wanted to use the concept of Blockchain in their own applications. People wanted to move out of their physical contracts to smart digital contracts where several issues like repudiation, transparency, security, etc. would be automatically addressed. The outcome of this effort resulted in…

  • Future

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    Since Bitcoin is a new emerging technology which is underway, unforeseen developments can make its existence and continuation difficult. Concerning its security and future, there are numerous questions which no one can answer. How far can we trust Bitcoins? Are they a bubble that is going to burst? Are they a passing phenomenon and a…

  • Applications

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    The following is a list of applications of bitcoins

  • Glossary

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    In this chapter, we shall learn bitcoin glossary which describes over 50 bitcoin terms. Address A bitcoin address allows us to send and receive bitcoins on the bitcoin network. It is also the public key or address that is used to transact in bitcoins. Altcoin Altcoin is a group of ‘alternate’ cryptocurrencies other than bitcoins.…