What is Blockchain

The Web 3 Revolution

How blockchain technology is changing the way we use the internet

If you are familiar with Blockchain technology, chances are you know that it is one of the most revolutionary technologies of our time. However, if you've never heard of it, or don't fully understand how it works, don't worry. In this article, we are going to explain everything you need to know about Blockchain technology.

What is Blockchain technology?

Blockchain is a distributed ledger technology that was developed in 2008 by an individual or group of individuals using the pseudonym Satoshi Nakamoto. It is used to securely, transparently and immutably record and verify digital transactions.
This technology is built around a decentralized "ledger" that is maintained on various computer networks around the world. This means there is no single point of control, which makes the system more secure and resistant to fraud and cyberattacks.

How blockchain technology works

Blockchain technology works through a network of interconnected computers. Each node in the network maintains a complete copy of the Ledger, which is updated in real-time as new transactions are registered. Each transaction is validated and confirmed by the network, which ensures that only legitimate transactions are recorded.

One of the main features of Blockchain technology is its immutability. Once a transaction is recorded, it cannot be changed or deleted. This is possible because each transaction block is encrypted and connected to a previous block, forming a chain of blocks. This blockchain is permanently etched across all network nodes, making it extremely difficult to alter or corrupt.
What are smart contracts?

A smart contract is a computer program that automatically executes the terms of a contract once previously established conditions are met. It is capable of controlling the transfer of digital assets or any other financial transaction based on a series of predetermined rules and conditions.

Smart contracts are written in a programming language that runs inside the blockchain, ensuring that the conditions of the contract are fulfilled in a secure and immutable way. These contracts are stored in a decentralized digital ledger, which can be verified and audited by all network participants.

A practical example of a blockchain smart contract would be a car insurance contract. When an individual buys insurance for his car, he can include the terms of the contract in a smart contract. If the car is involved in an accident, the smart contract can be triggered to check the terms of the contract, such as coverage and premium amount, and automatically make payment to the policyholder.

Smart contracts are useful because they eliminate the need for middlemen or central authorities to execute financial transactions. They are transparent, secure and reliable, making blockchain an ideal technology for creating decentralized and autonomous financial systems.

What are the benefits of Blockchain technology?

There are many benefits of Blockchain technology including:

Security - Blockchain technology is highly secure due to its decentralized and immutable nature.

Transparency - all transactions recorded on the Blockchain are transparent and can be verified by anyone.

Efficiency - Blockchain technology is very efficient as it eliminates the need for middlemen and reduces transaction costs.

Decentralization - Blockchain technology is decentralized, meaning that it is not controlled by a single entity or organization.

Innovation - Blockchain technology is an innovative technology that is changing the way transactions are carried out around the world.
Now that you already know Blockchain technology, come with us to understand what WEB 3 is and how together with Blockchain they can be disruptive innovations

Web 3.0: What is it and how blockchain is changing the internet

With the growth of blockchain technology, we are seeing the evolution of Web 3.0, a new phase of the internet that has the potential to revolutionize the way we interact online. In this text, we will explore what is Web 3.0, NFTs, DeFis, tokens, fan tokens and how these concepts emerged with the blockchain era.

What is Web 3.0?

Web 3.0, also known as the "decentralized Web", is a new phase of the internet whose main objective is to make the web more secure, private and inclusive. With Web 3.0, users can communicate directly with each other, without the need for intermediaries such as large technology companies. This is possible thanks to blockchain technology, which allows the creation of decentralized and secure networks.


NFTs, or "Non-Fungible Tokens", are unique digital assets that can be bought, sold and traded on blockchain networks. These assets can be anything from digital art to videos, music, and even tweets. Each NFT is unique and one of a kind, making it a valuable collector's item.


DeFis, or "Decentralized Finance", is a new form of finance that uses blockchain technology to create a decentralized financial network. With DeFis, users can lend, invest and transact financially without the need for traditional intermediaries such as banks.


Tokens are digital assets that can be bought, sold and traded on blockchain networks. These assets can represent anything from cryptocurrencies to property rights, stocks and more. With Web 3.0, tokens can be used as a form of payment or to represent ownership of an asset.

Fan Tokens

Fan Tokens are a new form of interaction between fans and brands. These tokens are created on blockchain networks and allow fans to actively participate in a brand's decision-making, as well as providing exclusive access to events and experiences.


In recent years, the term "metaverse" has been mentioned more and more in the world of technology and games. But what is the metaverse anyway? The metaverse is a concept that refers to a shared virtual world, where people can connect, interact and participate in a multitude of digital experiences. It's kind of an evolution of the virtual worlds we know today, like Second Life and Minecraft, but on a much bigger scale.

In the metaverse, users can have personalized avatars and live immersive experiences in a digital world, whether through a computer or virtual reality devices. In addition, the metaverse also enables the creation of content by the users themselves, whether through construction of virtual environments, development of games and applications, or creation of artistic content.

This new technological frontier is already the target of investments by large companies in the sector, and of course, Sonica is also developing metaverse platforms. The objective is to create a virtual space that allows users not only to play and socialize, but also to work, study, shop, attend shows and events, among other activities.

The potential of the metaverse is immense and promises to change the way we relate to technology and the world around us.


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Published on 04/13/2023 • Blog Sonica


Gabriela C. Trindade

Social Media, Sonica

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