A Beginner’s Guide to Blockchain Virtual Machines

In this guide, we’ll explore one of the key components that power the blockchain: the Virtual Machine (VM).

Júlia
Klever News
3 min readJul 29, 2024

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Disclaimer: This article was originally published on another website and is being shared here for the convenience of our readers. For the original publication, please visit Digital Global Times. All views and opinions expressed in this article are those of the author and do not necessarily reflect the official stance of Klever.

What is a Blockchain Virtual Machine?

Imagine a blockchain as a digital ledger that keeps records of all transactions. Now, for this blockchain to run smart contracts (self-executing contracts with the terms of the agreement directly written into lines of code), it needs a special environment. This is where a Blockchain Virtual Machine (VM) comes into play.

Definition and Functionality

A Blockchain VM is essentially a software-based engine that provides the necessary infrastructure for running smart contracts on a blockchain. It acts as an emulation layer, allowing developers to write applications that can execute in a decentralized, secure, and consistent manner across the network.

How Does a Virtual Machine Work?

At its core, a blockchain Virtual Machine:

Processes Instructions

It reads and executes the instructions written in smart contracts.

Manages State

Keeps track of the current state of all smart contracts and balances on the blockchain.

Ensures Security

Provides a sandboxed environment, meaning it isolates the execution of a smart contract from the rest of the network to ensure security and prevent malicious activities.

Klever Virtual Machine on KleverChain

One specific example of a blockchain VM is the klever virtual machine, designed to run on the KleverChain. KleverChain is part of the Klever ecosystem, aiming to simplify the adoption of blockchain technology and smart contracts.

Let’s delve into how it achieves this and why it stands out, especially for beginners looking to dive into decentralized applications.

Key Features of the Klever Virtual Machine (KVM)

  • Lightning-Fast Smart Contract Execution: KVM offers an environment where developers can expect unparalleled smart contract execution speeds. This is essential for building complex and resource-intensive dApps that need to operate seamlessly across the KleverChain.
  • Enhanced Security: The KVM provides an isolated environment for smart contract execution, which greatly enhances security. This isolation helps in mitigating potential vulnerabilities that are more common in other platforms, thereby offering peace of mind to both developers and users.
  • Developer-Friendly Environment: The launch of the KVM TestNet highlights Klever’s commitment to creating a supportive ecosystem for developers. This includes intuitive Software Development Kits (SDKs), comprehensive documentation, a streamlined Visual Studio Code extension, and ongoing support, making the onboarding and development process as smooth as possible.

Building on KVM

To get started with building on the KVM, developers need to be aware of a few critical aspects:

Supported Languages: Currently, the KVM primarily supports smart contracts written in Rust, a choice that emphasizes performance and safety. Rust’s capability to produce clean and efficient code for smart contracts sets it apart in the blockchain development space.

Development Tools: For an optimal coding experience, developers are encouraged to use the Klever IDE, which offers a tailored environment for developing, testing, and deploying smart contracts on KleverChain.

Stateless Execution for Robustness: The KVM operates as a stateless machine, meaning it doesn’t allow direct writes to the blockchain or storage during smart contract execution. This design choice prevents the need for reverting operations, with changes being applied only upon successful execution, thus maintaining the integrity of the global state.

Decentralized Applications on KleverChain

With its advanced features and developer-centric design, the KVM facilitates the creation of decentralized applications by providing a solid foundation for smart contract development. Whether it’s for finance, gaming, or any other sector, the KVM aims to lower the entry barrier for developers looking to venture into the decentralized world.

KleverChain itself is setting a new paradigm in the blockchain space by offering a user-friendly platform that simplifies the development and deployment process of blockchain applications. It’s not just about smart contracts; KleverChain enables native token creation and features without the need for complex contracts, and uses an on-chain voting system for app protocol configuration, making it truly community-driven​.

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