Learn How to Code is a free e-book with everything a person would need to know to get started or level up as a web developer.
There are many aspects to fostering an open source project -- building community, promoting the library, maintaining good communication, among other factors. This book is a take on how to create, grow and maintain a successful open source project.
Mastering Bitcoin by Andreas Antonopoulos covers the technical foundations of bitcoin and other cryptographic currencies, from cryptography basics, such as keys and addresses, to the data structures, network protocols and the consensus mechanism ("mining") that underpin bitcoin. Each technical topic is explained with user stories, analogies and examples, and code snippets illustrating the key concepts.
Mastering Ethereum by Andreas Antonopoulos is a book for developers, offering a guide to the operation and use of the Ethereum Open Blockchain.
Bitcoin Engineering (CS251P)
CS251 tackles the applied side of Bitcoin with a focus on practical projects. Students go through a series of Bitcoin-based labs, each of which are focused on a single practical problem that they'd encounter while trying to use Bitcoin. Over the course of going through these labs, students learn how to use Bitcoin mining chips in conjunction with Bitcoin-based software to build micropayments-based applications that work with an internet-connected device. The goal of the class it to help students gain the practical knowledge required to build fairly sophisticated hardware and software applications that require intimate knowledge of the Bitcoin protocol.
Bitcoin Core is a reference client of bitcoin. Initially, the software was published by Satoshi Nakamoto under the name Bitcoin, then Bitcoin-Qt and later renamed to Bitcoin Core. It is also known as the Satoshi client. It is a full client used by bitcoin nodes that create the bitcoin network. Through the changes to Bitcoin Core, its developers make changes to the underlying bitcoin protocol.
Bitcoin.org was originally registered and owned by Satoshi Nakamoto and Martti Malmi. When Satoshi left the project, he gave ownership of the domain to additional people, separate from the Bitcoin developers, to spread responsibility and prevent any one person or group from easily gaining control over the Bitcoin project. Since then, the site has been developed and maintained by different members of the Bitcoin community. On GitHub, there have been over 3,200 commits from 180 contributors. Over 950 translators have helped make the site natively display in 25 different languages. Bitcoin.org receives tens of millions of visits a year.
The Congo Developers Club is an online place where developers across Congo and Central Africa can exchange ideas, experiences and opportunities in the field of computer science and personal / professional development.
The European Space Agency (ESA) is Europe's gateway to space. Its mission is to shape the development of Europe's space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
The Fedora Project is a project sponsored by Red Hat primarily to coordinate the development of the Linux-based Fedora operating system, operating with the vision that the project creates a world where free culture is welcoming and widespread, collaboration is commonplace, and people control their content and devices. The project also oversees Extra Packages for Enterprise Linux.
The Jet Propulsion Laboratory is a federally funded research and development center and NASA field center in the City of La Cañada Flintridge, California, United States. Founded in the 1930s by Caltech researchers, JPL is owned by NASA and managed by the nearby California Institute of Technology.
Python is a high-level, interpreted, general-purpose programming language. Its design philosophy emphasizes code readability with the use of significant indentation. Python is dynamically-typed and garbage-collected. It supports multiple programming paradigms, including structured, object-oriented and functional programming.
Ruby is an interpreted, high-level, general-purpose programming language. It supports multiple programming paradigms, including procedural, object-oriented, and functional programming. According to the creator, Ruby was influenced by Perl, Smalltalk, Eiffel, Ada, Basic, and Lisp.
Based in Silicon Valley, California, and founded in 2013, Earn.com (formerly known as 21), enables micropayments with bitcoin-payable APIs, and microtasks between users via their paid messaging platform. In the past, the company has also experimented with embeddable mining chips that can be integrated into internet-connected devices, supporting a continuous stream of digital currency for use in a wide variety of applications.
Accenture is a multinational professional services company that provides services in strategy, consulting, digital, and technology-related operations.
Alameda Research is a quantitative cryptocurrency trading firm that provides liquidity in cryptocurrency and digital assets markets.
ALEX is a decentralized platform for projects on Stacks to access community funding and the resources of the ecosystem.
Arkadiko is a decentralized, non-custodial liquidity protocol where users can collateralize their STX tokens and borrow a stablecoin called USDA.
AVA is a next-generation blockchain platform with revolutionary scalability, decentralization, security, and flexibility.
Binance is a global cryptocurrency exchange that provides a platform for trading more than 100 cryptocurrencies.
BitPesa is an online payment platform launched in 2013. It's headquartered in Nairobi, Kenya with office operations in Lagos, London, Luxembourg and Dakar. BitPesa offers real-time settlement at wholesale FX rates to frontier and emerging markets.
Bitvavo is a large digital asset exchange in the Netherlands and a leading European cryptocurrency exchange.
Blockchain is a cryptocurrency wallet and block explorer service. Launched in August 2011, the service provides wallets, data on recent transactions, mined blocks in the bitcoin blockchain, charts on the bitcoin economy, and statistics and resources for developers. Information from and links to the website are common in media coverage and in bitcoin forums.
BTC Markets is a large cryptocurrency exchange based in Melbourne, Australia.
Canaan Creative, known simply as Canaan, is a computer hardware manufacturer with specific integrated circuit design skills based in Beijing, China founded in 2013. Canaan invented the first Bitcoin mining processors and computers and leads bitcoin hardware mining by using advanced ASIC semiconductor manufacturing processes. Canaan is known for its quality hardware paired with Open Source Software.
The Celo Foundation is a non-profit organization based in the US that supports the growth and development of the open-source Celo Platform. Guided by the Celo community tenets, the Foundation contributes to education, technical research, environmental health, community engagement, and ecosystem outreach—activities that support and encourage an inclusive financial system that creates the conditions for prosperity for everyone.
Chainlink is a decentralized blockchain oracle network built on Ethereum.
Cisco is an American multinational technology conglomerate headquartered in San Jose, California, in the center of Silicon Valley, that develops, manufactures and sells networking hardware, telecommunications equipment and other high-technology services and products.
Code To Inspire (CTI) uses technology education and outreach to provide Afghan women with leverage in their fight for social, political, and economic equality. CTI helps build skills and infrastructure for women to compete in the global tech market, empowering them financially and socially. The CTI model is a scalable approach to tackle gender inequality and poverty.
Founded in June of 2012, Coinbase is a digital currency wallet and platform where merchants and consumers can transact with new digital currencies like bitcoin, ethereum, and litecoin. Coinbase strives to make digital currencies easy to use and to be one of the world's leading platforms for digital currency integration.
Coinmetro is an EU licensed exchange and holds active registrations with regulators in the USA and Australia.
Deloitte has approximately 286,000 professionals at member firms delivering services in audit & assurance, tax, consulting, financial advisory, risk advisory, and related services in more than 150 countries and territories.
Eesti 2.0 is a non-profit organization that aims to inspire the next generation of Estonians to choose a future in technology by providing students with different technological tools and offering them ideas to apply these technologies. Eesti focuses on elementary, middle and high school students across Estonia. Its goal is to nourish creative thinking across disciplines and connect science based theories to real life phenomena and events.
Flow is a blockchain built for the next generation of apps, games, and the digital assets that power them.
FTX is a cryptocurrency exchange built by traders, for traders. FTX offers innovative products including industry-first derivatives, options, volatility products and leveraged tokens.
GiveDirectly is a nonprofit organization operating in East Africa that helps families living in extreme poverty by making unconditional cash transfers to them via mobile phone. GiveDirectly transfers funds to people in Kenya, Uganda, and Rwanda.
GSR is a crypto market maker and ecosystem partner.
Hex Trust is a fully licensed and insured provider of bank-grade custody and associated services for digital assets in Asia.
Hiro makes tools for developers to build this future with Stacks, one of the largest and fastest growing Web3 projects on Bitcoin.
Kadena was founded on the idea that blockchain could revolutionize how the world interacts and transacts.
Keyrock develops crypto asset financial infrastructure. It uses in-house algorithmic trading bots and high frequency trading infrastructure to supply market making and liquidity services to the cryptocurrency ecosystem.
LedgerPrime is a quantitative digital asset investment firm.
NovaDAX is a global cryptocurrency exchange based in Brazil.
Okcoin is a globally licensed exchange with offices in San Francisco, Miami, Malta, Hong Kong, Singapore and Japan.
Parity is a core blockchain infrastructure company, creating an open-source creative commons that will enable people to create better institutions through technology.
Rain is a licensed middle eastern cryptocurrency exchange, primarily servicing the countries of Bahrain, Saudi Arabia, UAE, Kuwait, and Oman.
Ripple is an enterprise blockchain company with products in commercial use by hundreds of customers across 55+ countries.
SIREN is a distributed protocol for creating, trading, and redeeming fully-collateralized options contracts for any ERC-20 token on Ethereum.
The Solana Foundation is a non-profit organization headquartered in Zug, Switzerland, dedicated to the decentralization, growth, and security of the Solana network.
The Stacks Foundation supports the mission of a user owned internet through Stacks-related governance, research and development, education, and grants.
SushiSwap is an open source exchange that manages yield farming and token swaps by using the use of an Automated Market Maker (AMM) smart contract.
Tokensoft helps issuers of SEC registered blockchain securities get to market.
The mission of Trust Machines is to grow the Bitcoin economy.
Wintermute is a global algorithmic market maker in digital assets.
Wrapped enables digital assets to connect different networks and blockchains beyond the ones they were originally deployed on.