From Bitcoin Mining to Solar Energy: How African Innovation is Reshaping Blockchain Technology As Africa continues to lead in Bitcoin adoption and blockchain innovation, a new frontier is emerging that connects cryptocurrency technology with renewable energy solutions. In a recent interview, John Wainaina Karanja, co-founder and CEO of Melanin Solar and founder of BitHub Africa, ... Read more
Discover how one engineer's journey from Occupy Wall Street to Bitcoin maximalism reveals the power of sociotechnical systems. Learn why sound money principles could transform Africa's economic landscape through peer-to-peer transactions, open-source development, and decentralized financial infrastructure that removes traditional intermediaries.
Discover how blockchain consensus evolved from energy-intensive Bitcoin mining to efficient proof-of-stake systems. Learn about delegated staking opportunities and how African entrepreneurs can leverage these technologies to build sustainable Web3 businesses while reducing environmental impact.
Discover how Bitcoin mining and proof-of-work technology are revolutionizing energy access across Africa. John Wainaina Karanja from Melanin Solar reveals innovative solutions combining renewable energy with cryptocurrency mining to address the continent's massive energy poverty affecting over 50% of the population.
Discover how John Wainaina Karanja transformed a failed startup into BitHub Africa Africa and the Black Blockchain Summit. From being one of three Black attendees at Bitcoin 2014 to organizing Africa's premier blockchain gathering, this is the inspiring story of building inclusive crypto communities across the continent.
Discover how John Wainaina Karanja of Melanin Solar is revolutionizing energy access across Africa using blockchain technology and cryptocurrency mining. Learn about the innovative Whive Protocol that converts excess solar energy into digital tokens, creating peer-to-peer energy markets for underserved communities while driving sustainable development goals.
Blockchain is a data structure that stores records in a queue system. There are two types of blockchains: public and private. Public blockchains, like Bitcoin, allow anyone to view all transactions, while private blockchains restrict access to authorized individuals. In this session, we explain that a “block” is essentially a bundle of transactions. This bundling ... Read more
In this episode, the focus is on the role of incentives in blockchain technology, specifically in Bitcoin, to ensure network security. Two main consensus algorithms for providing these incentives are discussed: Proof of Work (PoW) and Proof of Stake (PoS). In PoW, miners use computational power to solve complex equations, thereby creating new coins and ... Read more
In this episode we discuss how the Melanin Solar project uses blockchain technology and CPU mining to enable community members to trade electricity. Utilizing the Lightning Network and the Whive protocol, the system allows energy to be stored and shared as digital tokens. Over 2,000 people are expected to gain affordable power access through this ... Read more
Discover how BitHub Africa Africa's John Wainaina Karanja is revolutionizing energy access across Africa using blockchain technology. Learn about Melanin Solar's innovative approach to creating peer-to-peer energy marketplaces, tokenizing solar power, and connecting 500,000 households through cryptocurrency mining concepts that could lift communities out of poverty.
John Wainaina Karanja, engineering lead of Whive Protocol and founder of BitHub Africa Africa, debunks Bitcoin energy myths and reveals how proof-of-work mining can power Africa's renewable energy revolution. Discover why Bitcoin uses 75% renewable energy and how African nations can leverage hydroelectric resources for sustainable blockchain development.
John Wainaina Karanja, engineering lead of Whive Protocol and BitHub Africa Africa co-founder, debunks Elon Musk's Bitcoin energy claims while revealing how proof-of-work mining could power Africa's renewable energy revolution through innovative blockchain solutions.
Blockchain is a booming sector with ample opportunities waiting for you in the market. If you think you have the right skill sets to work in Blockchain domain and wish to get adapted to this trending wave, then you should be able to take the necessary actions to enjoy the power of this revolutionary platform.In ... Read more
Explore how current challenges in Africa's Bitcoin ecosystem are driving unprecedented innovation across the continent. From regulatory hurdles to infrastructure gaps, discover why obstacles are becoming opportunities for blockchain adoption and how African developers are leading transformative solutions in the global cryptocurrency landscape.
BitHub Africa Africa's John Wainaina Karanja reveals how blockchain technology is transforming African communities through cross-border payments, agricultural financing, and solar-powered cryptocurrency mining. Discover real-world use cases from Zimbabwe to Kenya that prove blockchain's potential goes far beyond speculation to create lasting economic impact.
The UNICEF Innovation Fund has determined that it is looking to make $50-90K equity-free investments to provide early stage (seed) finance to for-profit technology startups that have the potential to benefit humanity. BitHub Africa hosted the UNICEF InnovationFund Meetup on Saturday, 27 January 2018 at its space in Hurlingham. Ms. Ariam, the UNICEF Learning Lead ... Read more
Bitcoin adoption is growing all over the world. And this sets people up to the whims of scammers who are ever devising ingenious ways to rid people of their hard-earned coins. Especially with the price of Bitcoin is on a very positive trajectory, presently almost crossing the $5,000 psychological line, even so for brief moment. ... Read more
Mining Bitcoin has undergone quite the evolution since the days of yore when you could labour away on the edge of your seat while you typed away on a laptop. But then again, the trajectory of technology is to ever lean forward, thusly, one cannot fail to behold the smorgasbord of mining technology in the ... Read more
On Saturday, 22nd April 2017, BitHub Africa hosted a Bitcoin and Android meetup dubbed Bitdroids. The goal of the meetup was to discuss Bitcoin developments on the Android platform. The event was sponsored by BTC.com a leading Bitcoin Wallet platform operating in emerging and developing countries. Every attendee was trained on how to download, install, secure ... Read more
The Future of Cryptocurrency Regulation in Africa: Central Bank Digital Currencies and Regulatory Sandboxes As blockchain technology continues to evolve across Africa, a recent panel discussion featuring banking experts, lawyers, and industry entrepreneurs explored the critical questions surrounding cryptocurrency regulation, compliance challenges, and the inevitable rise of central bank digital currencies (CBDCs) on the continent. ... Read more
Unlocking Africa’s Blockchain Potential: How Bitcoin is Revolutionizing Financial Inclusion Across the Continent As blockchain technology continues to reshape the global financial landscape, Africa stands at the forefront of a revolutionary transformation. In this compelling presentation, John Wainaina Karanja, founder and consulting lead of BitHub Africa, shares insights into how Bitcoin and blockchain technology are ... Read more
When I stepped onto that stage to talk about the African blockchain opportunity, I was thinking about a 26-year-old young man I’d met during our travels. He’d literally pulled his family out of poverty using Bitcoin – through trading, mining, building his own business. That’s the power of permissionless innovation, and that’s exactly what Africa ... Read more
“Chi da savio operar vuole, pensi al fine.” An Italian proverb to allude to Charles Ponzi’s descent to mean Think on the end before you begin, buyer beware.When I think about Ponzi schemes and the people who perpetrate them, one thing comes to mind- that the best ponzis happen around, within an innovation. Bitcoin is ... Read more
Unlocking Africa’s Blockchain Revolution: How Bitcoin and Distributed Ledgers Are Transforming African FinTech As Africa continues its remarkable economic rise, blockchain technology emerges as a powerful catalyst for solving longstanding challenges across the continent. From land registry inefficiencies to cross-border payment hurdles, distributed ledger technology offers unprecedented opportunities for financial inclusion and innovation. Here’s how ... Read more
BitHub.Africa conducted a feasibility study on how Blockchain technology like Bitcoin could be harnessed to create new opportunities to solve problems in Africa. This was especially important given the recent decision by Kenyan Central Bank to issue a warning against Bitcoin. We surveyed 96 people who are already in the African Bitcoin Community using this form. What ... Read more