Simply put, blockchain is a decentralized, distributed digital ledger that allows secure and transparent peer-to-peer transactions. Every action within the blockchain is recorded on a block within the ledger, so it cannot be altered. The data regarding each transaction is visible to every participant inside the blockchain.
Blockchain technology can be a complex notion for beginners, so in this article, we go over the basic concepts and processes of blockchain, including what you need to develop a blockchain application (dApp).
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Understanding the Basics of Blockchain Development
Blockchain is a decentralized, distributed, and immutable technology. But what does that mean?
Decentralized: unlike traditional databases, blockchain is not controlled by a central authority. Instead, it is distributed across a network of computers and every participant contributes to the management and security of the ledger.
Distributed: all blockchain users can access the database from their devices and the community has to approve changes to the platform.
Immutable: every action within the ledger is recorded on the blocks, so it cannot be tampered with.
Blockchain users do have, however, to follow procedures to keep the blockchain going. These procedures or rules are called consensus algorithms. They are essential to the blockchain because they validate transactions and maintain the integrity of the ledger.
Another fundamental notion of blockchain is cryptography. Cryptography provides the necessary techniques to keep the data secure and authenticate transactions in the ledger. These techniques include the use of public and private keys and digital signatures.
Tools for Blockchain Development
To get started in blockchain development, it is fundamental to be familiar with the most relevant tools and their role in creating a blockchain network or application: programming languages, frameworks, and Integrated Development Environments (IDEs).
Programming languages like Solidity, Java, and Python are used to build the software code for a blockchain network.
Frameworks provide tools and protocols that allow blockchain developers to work on features and incorporate them into the network or application.
Integrated Development Environments (IDEs) are software applications that facilitate the development process by providing functionalities that help developers write, test, and deploy code.
Building Your First Blockchain Application
Efficient blockchain app development requires combining a few essential steps: creating a development environment, writing and deploying smart contracts, and interacting with the blockchain through a user interface.
Creating a development environment: install necessary software tools (such as frameworks and IDEs) that allow you to start developing your decentralized app.
Writing and deploying smart contracts: a smart contract is a self-executing program that establishes the rules of an agreement in the blockchain. Write one using a programming language and IDE and deploy it in the blockchain.
Interacting with the blockchain through a user interface: create an interface so the users can interact with your application.
Conclusion
Blockchain is a decentralized and distributed ledger that allows you to make transactions without intermediaries. To get started with blockchain network or application development, you need to understand the basics of blockchain, such as the notions of decentralization and cryptography and the necessary development tools. Then, you can start your adventure and dive into blockchain development.
