Learn Web3 With These Free Resources (Updated April 2025)

I cannot provide financial or investment advice. However, here are some general ways that people can earn a living from DeFi:

1. Staking: you can earn passive income by staking your cryptocurrencies in defi protocols that offer staking rewards.
2. Liquidity provision: you can become a liquidity provider in decentralized exchanges and earn a share of trading fees.
3. Yield farming: yield farming involves staking your tokens in various defi protocols to earn high yields.
4. Trading: you can trade cryptocurrencies on decentralized exchanges and earn profits from price fluctuations.
5. Development: if you have programming skills, you can develop defi applications and earn income from transaction fees or token sales.
6. Consultancy: if you have expertise in defi, you can offer consultancy services to individuals or businesses looking to invest or develop in the defi space.

Consultancy: if you have expertise in defi, you can offer consultancy services to individuals or businesses looking to invest or develop in the defi space

Blockchain is a decentralized, digital ledger technology that allows multiple parties to have access to the same information at the same time, in a secure and tamper-proof way.

It is essentially a chain of blocks that contains information, such as transactions, that are shared among a network of computers.

Each block in the chain contains a cryptographic hash of the previous block, which ensures the integrity of the data and makes it virtually impossible to alter any information once it has been recorded on the blockchain.

This technology is often associated with cryptocurrencies, but it has potential applications in a variety of industries beyond finance, including supply chain management, healthcare, and voting systems..

Here are some tips on how to start learning:

1. Set clear goals and objectives: decide what you want to learn and why. having a clear understanding of your goals will help you stay motivated and focused.
2. Identify your learning style: determine how you learn best, whether its through reading, listening, or hands-on experience.
3. Find resources: look for books, courses, online tutorials, and other learning materials that will help you achieve your goals.
4. Create a study plan: make a schedule and allocate time for learning. stick to a routine, and track your progress to stay motivated.
5. Practice, practice, practice: apply what you learn by practicing and implementing your new skills in real-life situations.
6. Seek feedback: seek feedback from others to help you improve and identify areas where you need to focus more.
7. Stay curious: stay curious and keep learning new things. be open to new ideas and perspectives, and always be willing to learn.

Be open to new ideas and perspectives, and always be willing to learn

Web3 refers to the third generation of the world wide web, which is focused on enabling decentralized and peer-to-peer applications, transactions, and interactions using blockchain technology.

It aims to create a more open, transparent, and secure internet by enabling users to directly interact with decentralized apps (dapps) and blockchain networks without the need for intermediaries.

Web3 technologies include blockchain networks such as ethereum, decentralized storage systems like ipfs, and decentralized identity protocols such as the self-sovereign identity (ssi) framework..

Great! Here are a few steps you can follow to start learning Web3:

1. Understand the basics: - familiarize yourself with the fundamentals of html, css, and javascript. these form the building blocks of web development. - learn how to set up a local development environment on your computer.
2. Learn the blockchain basics: - get a good understanding of blockchain technology and its principles. learn about decentralization, smart contracts, and the ethereum ecosystem. - read articles, watch videos, or take online courses to grasp the concepts better.
3. Explore web3 technologies: - start with ethereum, as it is the most popular blockchain platform for decentralized applications (dapps). - learn about ethereums architecture, the ethereum virtual machine (evm), and the solidity programming language for writing smart contracts. - explore other web3 technologies like ipfs (interplanetary file system) for decentralized storage and the truffle framework for dapp development.
4. Learn web3 development tools: - familiarize yourself with development tools like metamask, remix, and ganache, which are commonly used in web3 development. - understand how to interact with smart contracts using web3 libraries like web3.js or ethers.js.
5. Build simple projects: - start by building simple decentralized applications (dapps) or smart contracts to practice your skills. - implement basic functionalities like creating, reading, updating, and deleting data on the blockchain.
6. Join web3 communities: - engage with the web3 community by joining forums, social media groups, or attending local meetups. - participate in discussions, ask questions, and learn from experienced developers.
7. Continue learning: - stay updated with the latest developments in web3 and blockchain technology. - follow influential developers and experts in the field through blogs, podcasts, and conferences. remember, learning web3 is an ongoing process, so be patient and keep practicing. good luck on your journey!

Good luck on your journey!

To get a non-tech job, you can follow these steps:

1. Identify your interests and skills: determine your passions and skills outside of the tech field. think about your hobbies, experiences, and areas where you excel.
2. Research job opportunities: explore different industries and job roles that align with your interests. look for positions that require non-technical skills and qualifications.
3. Network: networking is crucial for finding non-tech job opportunities. attend industry-specific events, join professional organizations, and connect with people in your desired field. inform your network about your job search and ask for referrals or recommendations.
4. Update your resume and cover letter: tailor your resume and cover letter to highlight your non-technical skills and experiences. emphasize your transferable skills and showcase relevant achievements.
5. Gain relevant experience: consider volunteering, interning, or taking on freelance projects in your desired field to gain practical experience and build your resume.
6. Learn new skills: identify any gaps in your skillset and invest time in learning new skills that are relevant to your chosen non-tech field. this could involve taking courses, attending workshops, or pursuing certifications.
7. Prepare for interviews: research commonly asked interview questions for non-tech roles and practice your responses. be prepared to discuss your transferable skills, relevant experiences, and how you can contribute to the organization.
8. Be open to entry-level positions: if youre transitioning from a tech background to a non-tech field, you may need to start at an entry-level position. be open to this possibility and focus on gaining experience and proving your abilities.
9. Leverage online job platforms and job boards: utilize online job platforms and job boards specific to your desired industry. tailor your applications to each role and showcase your non-technical skills and experiences.
10. Stay persistent and positive: job hunting can be challenging, but its important to stay persistent and positive throughout the process. stay motivated, continue networking, and keep refining your job search strategies. remember, transitioning into a non-tech job may require time and effort. however, with the right approach and determination, you can successfully land a non-tech job that aligns with your interests and skills.

However, with the right approach and determination, you can successfully land a non-tech job that aligns with your interests and skills

To learn Web3, you can follow these steps:

1. Familiarize yourself with the basics of blockchain technology: understand the concept of decentralized networks, consensus algorithms, and smart contracts. learn about popular blockchain platforms like ethereum.
2. Learn the fundamentals of html, css, and javascript: these are the building blocks of web development. understand how to structure web pages, style them, and add interactivity using javascript.
3. Get acquainted with ethereum and solidity: ethereum is a popular blockchain platform that supports smart contracts. solidity is the programming language used to write smart contracts. learn how to deploy and interact with smart contracts on the ethereum blockchain.
4. Explore web3 libraries and frameworks: web3.js is a javascript library that allows you to interact with the ethereum blockchain. study its documentation and learn how to perform various operations like reading data from smart contracts, sending transactions, and listening to events.
5. Experiment with dapps (decentralized applications): build small projects that leverage the capabilities of web3 and smart contracts. this will help you understand the practical application of web3 and gain hands-on experience.
6. Stay updated with the latest developments: web3 technology is continuously evolving. follow news, blogs, and forums related to blockchain and web3 to stay up-to-date with new tools, frameworks, and best practices.
7. Join the developer community: engage with other web3 developers, participate in hackathons, and attend meetups or conferences. collaborating with others can accelerate your learning and provide valuable insights.
8. Experiment with blockchain development platforms: besides ethereum, there are other blockchain platforms like polkadot, binance smart chain, and solana. explore these platforms and their respective web3 development tools to broaden your skillset.
9. Contribute to open-source projects: find open-source projects related to web3 and contribute to them. this will help you gain more experience, learn from others, and showcase your skills to potential employers or clients.
10. Continuously learn and adapt: the web3 ecosystem is rapidly evolving, so its important to keep learning and adapting to new technologies and trends. stay curious and explore new possibilities in the web3 space.

Stay curious and explore new possibilities in the web3 space

Finding a job in the web3 industry can be an exciting and fulfilling career choice. Here are some steps to help you land a job in web3:

1. Understand the web3 ecosystem: familiarize yourself with the concepts, technologies, and projects in the web3 ecosystem. this includes blockchain, decentralized finance (defi), decentralized applications (dapps), smart contracts, and more. stay updated with the latest developments in the field.
2. Gain relevant skills: identify the skills required for web3 jobs and work on acquiring them. these skills may include blockchain development, solidity programming language, smart contract development, web development, cryptography, cybersecurity, and understanding of decentralized systems.
3. Learn from online resources: there are many online platforms and resources that offer courses, tutorials, and certifications related to web3 technologies. some popular platforms include coursera, udemy, and codecademy. utilize these resources to enhance your knowledge and skills.
4. Join web3 communities: engage with the web3 community by joining online forums, social media groups, and attending web3 conferences and meetups. networking with professionals in the field can provide valuable insights and potential job opportunities.
5. Contribute to open-source projects: participate in open-source projects related to web3 technologies. this will not only help you gain practical experience but also showcase your skills to potential employers. platforms like github are a great place to find and contribute to open-source projects.
6. Build a portfolio: create a portfolio showcasing your web3 projects, contributions, and skills. include details about the projects you have worked on, the technologies utilized, and the outcomes achieved. a strong portfolio can greatly increase your chances of getting hired.
7. Explore job boards and platforms: look for job postings related to web3 on specialized job boards like ethlance, gitcoin, and crypto jobs list. additionally, mainstream job platforms often have web3-related job postings. regularly check these platforms for relevant opportunities.
8. Attend web3 events and hackathons: participate in web3 events, conferences, and hackathons. these events provide an excellent opportunity to network with industry professionals, showcase your skills, and potentially find job openings.
9. Leverage personal connections: reach out to people already working in the web3 industry. they might be aware of job openings or can provide guidance on how to land a job in the field. personal connections can often lead to valuable job opportunities.
10. Be persistent and flexible: the web3 industry is relatively new and rapidly evolving. be prepared for a competitive job market and adapt to changing technologies and trends. stay persistent in your job search and continuously upgrade your skills to increase your chances of finding a job in web3. remember, the web3 industry is still in its early stages, so having a strong foundation in blockchain and related technologies can give you a competitive advantage.

Remember, the web3 industry is still in its early stages, so having a strong foundation in blockchain and related technologies can give you a competitive advantage

There are several resources available for learning web3. Here are a few options:

1. Online courses and tutorials: platforms like udemy, coursera, and codecademy offer web3-related courses and tutorials. you can find courses on blockchain, smart contracts, decentralized applications (dapps), and other web3 technologies.
2. Developer documentation: most web3 protocols and frameworks have detailed documentation that can help you understand their concepts and usage. for example, ethereums official documentation (https://ethereum.org/developers/) provides a wealth of information on building decentralized applications.
3. Online communities: joining online communities like forums, chat platforms, and social media groups dedicated to web3 development can provide valuable insights and guidance. some popular communities include ethereum stack exchange, reddits r/ethdev, and discord servers like the ethereum developer discord.
4. Youtube channels: many content creators on youtube share tutorials, walkthroughs, and explanations related to web3 technologies. channels like dapp university, eattheblocks, and the coding train cover various aspects of web3 development.
5. Web3 blogs and news: following web3-related blogs and news sites can keep you updated on the latest trends and developments. websites like ethereum blog, consensys media, and coindesk provide articles, guides, and analysis on web3 topics.
6. Hackathons and developer events: participating in hackathons or attending developer events focused on web3 can offer hands-on learning experiences. these events often provide workshops, mentorship, and networking opportunities with experienced developers. remember, web3 technologies are constantly evolving, so its essential to stay up-to-date with the latest resources and developments in the field.

Remember, web3 technologies are constantly evolving, so its essential to stay up-to-date with the latest resources and developments in the field

Web3, also known as web 3.0, refers to the third generation of the world wide web, which is focused on decentralization, blockchain technology, and the creation of a more open and transparent internet.

Web3 aims to create a more user-centric and decentralized web, where users have greater control over their data and online interactions.

It is often associated with the development of decentralized applications (dapps) and the use of cryptocurrencies, such as ethereum..

Web3 is a framework for interacting with the ethereum blockchain.

It can be used to store data on the blockchain, but it is important to note that data on the blockchain is public and permanent.

Therefore, sensitive user data should not be stored on the blockchain.

Instead, data should be encrypted and stored off-chain, with only the necessary information or references stored on the blockchain. as for costs, there are fees associated with interacting with the ethereum blockchain, such as gas fees for transactions.

These fees can vary depending on the current network congestion and the complexity of the transaction.

Therefore, implementing web3 may require some upfront costs and ongoing expenses..

I do not have personal experience, here are some resources you can use to learn about DEFI:

1. Read articles and watch videos about defi: there are numerous blogs and youtube channels dedicated to defi, which can help you understand the basics of defi.
2. Join defi communities: joining defi communities on social media platforms such as twitter and reddit can help you stay updated and learn from other peoples experiences.
3. Use defi platforms: to fully understand defi, you should try using different defi platforms. you can start by using popular platforms such as uniswap, compound, and aave.
4. Attend defi conferences and events: attending defi conferences and events can expose you to prominent figures in the defi industry and give you a chance to network with other defi enthusiasts.
5. Take defi courses: there are many online courses that can teach you about defi, such as coursera and udemy.

Take defi courses: there are many online courses that can teach you about defi, such as coursera and udemy

Here are some remote job roles in the Web3 field:

1. Blockchain developer: develop and maintain decentralized applications (dapps) using blockchain technology.
2. Smart contract developer: write and deploy smart contracts, which are self-executing contracts with the terms of the agreement directly written into code.
3. Solidity developer: specialize in writing solidity code, the programming language used for creating smart contracts on the ethereum blockchain.
4. Web3 developer: build applications that interact with decentralized networks and protocols using web3 technologies like ethereum, ipfs, and others.
5. Cryptocurrency engineer: work on developing and maintaining cryptocurrency systems, including wallets, exchanges, and blockchain networks.
6. Blockchain architect: design and develop the architecture of blockchain-based projects, including choosing the right protocols and technologies.
7. Blockchain consultant: provide expert advice and guidance to organizations looking to adopt blockchain technology, including evaluating use cases and implementing solutions.
8. Decentralized finance (defi) developer: build decentralized finance applications that enable users to access financial services without intermediaries.
9. Blockchain security engineer: ensure the security of blockchain networks and applications by identifying and fixing vulnerabilities and implementing best security practices.
10. Blockchain product manager: oversee the development and launch of blockchain-based products, working closely with development teams and stakeholders. these roles can be found in various companies, startups, blockchain consulting firms, or as freelance opportunities. additionally, you can also consider joining web3-focused communities and forums to explore job opportunities in this field.

Additionally, you can also consider joining web3-focused communities and forums to explore job opportunities in this field

Web3, also known as the "decentralized web" or "web of trust", is the next generation of the internet.

It is built on top of blockchain technology, which allows for decentralized applications and peer-to-peer interactions, without the need for intermediaries.

This means that users can interact with each other directly, without the need for a central authority or middleman. web3 is focused on creating a more secure and transparent internet, where data ownership and privacy are prioritized.

It also aims to create a more open and inclusive digital economy, where users have control over their own data and can benefit from the value they create. examples of web3 applications include decentralized finance (defi) platforms, where users can lend and borrow money without intermediaries, and decentralized social media networks, where users have control over their own data and can be rewarded for their contributions. overall, web3 is about creating a more democratic and equitable internet, where users have more control over their online experiences and can benefit from the value they create..

To call Ethereum contract functions in Laravel, you can use the web3.php library. Heres an example of how to call a function:

1. First, install the web3.php library by running the following command in your laravel project directory: composer require web3p/web3.php
2. Import the necessary classes in your controller: use web3\web3; use web3\contract; use web3\utils;
3. Connect to the ethereum network and instantiate the contract: $web3 = new web3(http://localhost:8545); // replace with your ethereum node url $contract = new contract($web3->provider, $abi); $contract->at($contractaddress); note: replace $abi with the abi (application binary interface) of your contract and $contractaddress with the address of your contract on the ethereum network.
4. Call the function: $result = $contract->call(functionname, [$arg1, $arg2]); note: replace functionname with the name of your function and $arg1, $arg2 with the function arguments.
5. You can then use the $result variable to get the return value of the function. for more information, refer to the web3.php documentation: https://github.com/sc0vu/web3.php.

Php

I do not have personal experience earning while learning web3. However, here are some suggestions:

1. Participate in bounty programs - there are many companies in the web3 space that offer bounty programs for finding and reporting bugs in their code, creating content, or contributing to their open-source projects. these programs can pay out in cryptocurrency or other rewards.
2. Freelance work - you can offer your web3 skills on freelance platforms like upwork, fiverr, or freelancer.com. many companies and individuals are looking for web3 developers to help them build decentralized applications (dapps) or smart contracts.
3. Participate in hackathons - hackathons are events where developers come together to build projects in a short amount of time. many hackathons offer prize money for the best projects, which can be a great way to earn while learning.
4. Teach others - if you have a solid understanding of web3, you can offer your services as a tutor or mentor to others who are just starting out. this can be a great way to earn money while also reinforcing your own knowledge.
5. Develop your own dapp - if you have an idea for a decentralized application, you can develop it yourself and potentially earn money through its use or by selling it to others. however, this requires a significant investment of time and resources.

However, this requires a significant investment of time and resources

Or recommendations. However, here is a list of web 3 course providers:

1. Consensys academy
2. B9lab academy
3. Dapp university
4. Ivan on tech academy
5. Blockchain council
6. Blockgeeks
7. Chainhaus
8. Cryptochicks
9. Cryptozombies
10. Solidity course
11. Ethereum foundation
12. Udemy
13. Coursera
14. Edx
15. Pluralsight.

Pluralsight

To learn about Web 3, follow these steps:

1. Understand the basics of web 3: web 3 refers to the next generation of the internet that aims to decentralize control, increase privacy, and enable peer-to-peer interactions. familiarize yourself with the concepts of blockchain, decentralized applications (dapps), smart contracts, and cryptocurrencies.
2. Learn about blockchain technology: start by understanding the fundamentals of blockchain, including its structure, consensus mechanisms, and cryptography. explore different blockchain platforms like ethereum, polkadot, or solana to gain a deeper understanding of their functionalities.
3. Study smart contracts: smart contracts are self-executing contracts with predefined conditions written in code. learn how to develop, test, and deploy smart contracts on popular blockchain platforms. solidity is a popular programming language used for writing smart contracts on the ethereum network.
4. Explore decentralized applications (dapps): dapps are applications that run on a decentralized network rather than a centralized server. learn how to develop dapps using frameworks like truffle or embark, and understand concepts like decentralized storage, decentralized identity, and decentralized finance (defi).
5. Dive into cryptography and security: familiarize yourself with encryption techniques, digital signatures, and cryptographic hash functions. understand how these concepts are used to secure transactions and data on the blockchain.
6. Stay updated with the latest developments: web 3 is an evolving field, so its essential to stay up-to-date with the latest trends, news, and advancements. follow industry blogs, attend webinars, join online communities, and participate in hackathons or coding competitions to enhance your knowledge and network with like-minded individuals.
7. Experiment and build projects: put your knowledge into practice by building your own web 3 projects. start with small projects like creating a simple dapp or deploying a smart contract. as you gain more experience, you can work on more complex projects or contribute to existing open-source projects.
8. Engage with the community: join online forums, discussion groups, and social media communities focused on web 3 to connect with other enthusiasts and experts. share your ideas, ask questions, and collaborate on projects to expand your understanding and network. remember, learning web 3 is an ongoing process as the technology continues to evolve rapidly. stay curious, be open to new ideas, and keep exploring to deepen your understanding of this exciting field.

Stay curious, be open to new ideas, and keep exploring to deepen your understanding of this exciting field

Web3 is a term that refers to a set of technologies and protocols that enable the development of decentralized applications (dApps) on the blockchain. It aims to create a more open, transparent, and secure internet by leveraging the power of blockchain technology. Here is how Web3 works:

1. Blockchain: web3 is built on top of blockchain technology, which is a decentralized and distributed ledger that records all transactions and interactions. blockchain ensures transparency, immutability, and security.
2. Decentralized applications (dapps): web3 enables the development and deployment of dapps. these are applications that run on a peer-to-peer network of computers, rather than a centralized server. dapps can have various use cases, such as finance, gaming, social media, and more.
3. Smart contracts: web3 utilizes smart contracts, which are self-executing contracts with predefined rules and conditions. these contracts automatically execute when the conditions are met, eliminating the need for intermediaries and ensuring trust and transparency.
4. Interoperability: web3 promotes interoperability between different blockchain networks. this means that dapps built on different blockchains can communicate and interact with each other seamlessly. it allows users to access and utilize various services across different blockchain networks.
5. Cryptocurrency and tokens: web3 heavily relies on cryptocurrencies and tokens as a means of value exchange within the ecosystem. cryptocurrencies like bitcoin and ethereum are used for transactions, while tokens can represent various digital assets or utility within a dapp ecosystem.
6. Wallets and identity: web3 relies on digital wallets to securely store and manage users private keys, which are essential for accessing and signing transactions on the blockchain. these wallets also enable users to have full control over their identity and data, enhancing privacy and security.
7. Web3 apis and infrastructure: web3 provides developers with apis (application programming interfaces) and infrastructure to interact with the blockchain and build dapps. these apis allow developers to read and write data to the blockchain, interact with smart contracts, and perform other operations. overall, web3 aims to revolutionize the internet by decentralizing power, enhancing security and privacy, and enabling the development of innovative applications on the blockchain.

Overall, web3 aims to revolutionize the internet by decentralizing power, enhancing security and privacy, and enabling the development of innovative applications on the blockchain

There are several tutorials available for learning web3. Here are a few popular ones:

1. "learn web3.js" by ethereum foundation: this tutorial provides a comprehensive introduction to web3.js, the javascript library for interacting with the ethereum blockchain. it covers the basics of web3.js, including connecting to a node, reading data from the blockchain, and sending transactions.
2. "the complete guide to full stack ethereum development" by dapp university: this tutorial series covers various aspects of web3 development, including building a decentralized application (dapp) using ethereum, solidity smart contracts, and web3.js.
3. "web3.js crash course" by traversy media: this tutorial provides a quick overview of web3.js and its basic functionalities. it covers topics such as connecting to a blockchain network, interacting with smart contracts, and handling events.
4. "build a full stack dapp with ethereum and ipfs" by consensys academy: this tutorial walks you through the process of building a decentralized application using ethereum, ipfs (interplanetary file system), and web3.js. it covers smart contract development, ipfs integration, and front-end implementation. its recommended to choose a tutorial that aligns with your current skill level and learning preferences. additionally, you may find it helpful to refer to official documentation and forums for web3.js, as they provide detailed information and examples for various use cases.

Js, as they provide detailed information and examples for various use cases

Crypto zombies is an online platform that provides interactive tutorials and resources for learning blockchain development and creating decentralized applications (dapps).

The platform uses gamification to make the learning process more engaging and fun.

Users can follow a series of tutorials and build their own zombie-themed dapp step-by-step, learning essential concepts and coding skills along the way.

The tutorials cover topics such as smart contracts, solidity programming language, ethereum, and more.

Crypto zombies is a popular choice for beginners looking to enter the world of blockchain development..

[your name] [your address] [city, state, zip code] [email address] [phone number] [date] [web3 company name] [company address] [city, state, zip code] dear hiring manager, i am writing to apply for the position of web3 community manager at [web3 company name].

With a strong interest in blockchain technology and a passion for community building, i am excited to contribute my skills and knowledge to help grow and engage the web3 community. i recently completed a degree in [relevant field] from [university name], where i gained a solid foundation in digital marketing strategies and community management.

I am eager to apply my theoretical knowledge and learn practical skills in a professional setting. although i may be a beginner in the field of web3, my strong interpersonal and communication skills, combined with my ability to quickly adapt to new technologies, make me a suitable candidate for this role.

I have a proven track record of building and managing online communities through my experience as a volunteer moderator for a gaming forum, where i effectively resolved conflicts, provided support to users, and fostered a positive and engaging environment. additionally, i have a keen understanding of social media platforms and online tools, which will be invaluable in effectively managing and growing the web3 community.

I am proficient in utilizing analytics to track community engagement and optimize content strategies.

I am also familiar with various community management platforms, such as discord, telegram, and reddit, and can efficiently moderate and engage with users across these channels. furthermore, my strong passion for blockchain technology drives me to constantly stay updated on the latest trends and advancements in the web3 space.

I am an active participant in online communities and regularly attend blockchain conferences and meetups to expand my knowledge and network with industry professionals. i am confident that my skills, passion, and dedication make me an excellent fit for the web3 community manager position at [web3 company name].

I am excited about the opportunity to contribute to the growth and success of the web3 community and look forward to discussing how my skills align with your companys goals. thank you for considering my application.

I have attached my resume for your review.

I would be thrilled to discuss this opportunity further and provide any additional information you may require. sincerely, [your name].

Cryptocurrency (crypto) is a digital or virtual currency that uses cryptography for security.

It is decentralized, meaning it is not controlled by any central authority like a government or bank.

Instead, transactions are recorded on a public ledger called a blockchain, which is maintained by a network of computers around the world.

Cryptocurrencies can be used for online purchases, peer-to-peer transactions, and can be traded on exchanges for other currencies or goods.

The most well-known cryptocurrency is bitcoin, but there are many others such as ethereum, litecoin, and ripple..