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Blockchain Technology

Blockchain Technology Explained For Beginners



Image Credits: mmi9 /Pixbay

New technologies emerge every day. Now there are new, better and easier ways of getting things done. Every century comes with a transformation. In the 21st century, for example, we view the internet technology as the most important transformation.

Its emergence became a platform for innovation, which has completely transformed our societies and economies. Today, the world stands on the edge of a technological revolution that is still unfolding. We’re now witnessing the Fourth Industrial Revolution (4IR), which is an assemblage of cutting-edge technologies.

According to PwC Global, blockchain is one of the Fourth Industrial Revolution (4IR), technologies taking root in businesses, financial institutions, governments, and almost every industry. It’s the underlying technology behind bitcoin; a peer-to-peer digital currency.

Blockchain is not Bitcoin.

There’s a common misconception about bitcoin and blockchain. Bitcoin is the first practical application of this innovative technology, and its success, as a result, has attracted top firms and companies to the technology behind it. Today, there are many practical use cases of how we can utilise blockchain technology and the list keeps growing. To help get started, this post provides a basic introduction to the concept of blockchain, its meaning and how it works.

What is a blockchain?

Blockchain is a distributed digital ledger (like a database) that uses software algorithms to record and verify valuable information ensuring decentralisation, transparency, and security.

“Blockchain and Bitcoin is a remarkable cryptographic achievement, and the ability to create something that is not duplicate in the digital world has enormous value” — Dr Eric Schmidt (former Google CEO).

In a simpler term, we can describe blockchain as a digital way of keeping In a simpler term, we can describe blockchain as a digital way of keeping records. The information recorded on the blockchain can be transactions, contracts, personal data, movement of goods, properties such as land, cars, houses.  Blockchain records information in the form of blocks which occur in a linear and chronological order, chain-linked using cryptography. Which connects the blocks to each other in the form of a long continuous chain using cryptography. Thus, the name ‘blockchain’.

What are the features of blockchain? 

Decentralisation, transparency, and immutability form the core features of this innovative technology. Let’s take a brief look at each of their various meaning as related to blockchain.

First, in blockchain, decentralisation means no central server or central authority. Many governmental organisations and companies in the world are operated by a central authority. They design these platforms to operate in a centralised way. Which means they store data and other information in a central server which can be vulnerable to attack.

But with blockchain, the storage of information is not done by one entity, but everyone in the network owns the information.

Second, blockchain stores, information immutably. which means they are tampered-proof. This is because blockchain operates in a distributed way, across a network of computers called nodes. 

A node in the blockchain network acts as an administrator. They are all equal. Every node receives all copies of data recorded on the network, avoiding any form of fraudulent activity. So for any changes to take place, the nodes that make up a blockchain network must come to a consensus. This makes it nearly impossible to hack through the network.

Third, the blockchain is transparent. The pieces of information recorded on the ledger of a public blockchain are open for all to see. All the information such as date, time, the value sent or received is displayed on the network.

Also, blockchain is secured using cryptography. For example, bitcoin, which is the first application of blockchain, secures its transaction with a digital seal. Interestingly, the blockchain does all of this process with no third party.

How blockchain works.

To boost understanding, let’s look at how blockchain works. Using remittance, If we apply a use case of blockchain such as cryptocurrency to the Africa remittance market, the cost of sending money home will become cheap. 

For instance, an uncle of yours who lives abroad wants to send you $100. The traditional third-party money transfer options such as Western Union, MoneyGram takes a longer time (some even days) to process such transactions and charges high transaction fees. 

There is no assurance of the complete $100 reaching your end because of a lack of transparencies and security. But, when we use a blockchain-powered platform, in this case, the whole process becomes easier, faster and cost effective.

With blockchain, for example, using bitcoin all your uncle needs is your public address to send you the $100. With your public address, you can send and receive any amount from anywhere in the world in an almost instantaneous process.

Once a transaction between two individuals occurs. It gets validated and included in a block by miners. With bitcoin; we refer the nodes as miners. Each time they confirm and include a transaction into a block, they’re rewarded with little incentives for performing this role.

The rise of blockchain applications.

This is just a glimpse of what blockchain we can use for. The potential the technology possess is promising, and it can arguably have a similar impact on the internet. And can solve many problems and challenges faced in our continent.

The technology is taking root across some major industries such as finance, agriculture, education, supply chain, real estate, banking. Countries like Malta, Estonia, Singapore, and the United Kingdom are fast becoming a global hub for blockchain-related businesses. The government of Dubai, for example, plans to include all of her government documents on the blockchain by the year 2020.


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Tech Writer | Interested in How Bitcoin & Blockchain Can Change Africa.| Barça fan

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Africa Blockchain Institute

Africa Blockchain Institute Organized The First African Blockchain Summer Bootcamp For Teenagers In Ghana



In the spirit of catching them young, the Africa Blockchain Institute organized the first-ever Blockchain Summer Bootcamp for teenagers (age range 13 to 19 years old). A successful Bootcamp, according to the participants’ testimonials and stakeholders, held at the OpenLabs, Ring Road, Accra Ghana, between Monday 2nd August, and Friday 6th August 2021. 

The teenagers applied from across Africa, and selected participants all converged at the OpenLabs, Ghana, for an intensive five days of learning, interacting, and implementing personal  Blockchain projects. The participants were divided into three significant tracks, thus; Blockchain Development, Blockchain for Creatives and Blockchain Entrepreneurship. 

Blockchain Summer Bootcamp for Teens by ABI
Blockchain Summer Bootcamp for Teens by Africa Blockchain Institute

Across these three tracks, the teenagers learnt introductory units to Blockchain Development for societal challenges, Blockchain evangelism, Non-Fungible Tokens, and how Cryptocurrency works. Another highlight of the program was the excursion to the Accra Digital Centre, where the Boot Campers were introduced to the tech ecosystem and feel of the Ghana Tech Lab and Accra Innovation Hub spaces. A visit was also made to the Museum of Science and Technology, and the teenagers got to understand the history of technology in Ghana. 

Worthy of mention was the panel session aimed at motivating the students to pursue a career in technology. While making his comments during the panel session, the founder of BankLess Africa, Mr. Muntala Mohammed Shaibu, urged the teenagers to stop seeing themselves as too young to experiment with new technologies. In her remarks, Ms. Elohor Thomas, CEO & Co-Founder of CodeLn, urged the teenagers to continue to explore their interest in technology and blockchain early.

Blockchain Summer Bootcamp for Teens by ABI
Panel Session, Blockchain Summer Bootcamp for Teens by ABI

The Bootcamp ended with personal project presentations from the Blockchain Development and the Blockchain for Creatives & Entrepreneurship tracks. Projects such as NFT blogposts, Blockchain product reviews and Blockchain for transport and logistics were presented. The best presentation won the OpenLabs scholarship for Robotics Course. Thanks to Dr Sujith Jayaprakash, the Director of OpenLabs, Ghana, for the offer of scholarship. In his closing remark, the Executive Director of the Africa Blockchain Institute, Mr. Kayode Babarinde, urged the teenagers to continue using the  skills and knowledge gained during Bootcamp to explore Blockchain-related solutions further. We also appreciate Mr. Ganzaro Omar, Chairman, AfroBlocks, for his supports, and fostering collaborations with the Ghanian Blockchain community.

The Africa Blockchain Institute will continue to hold future Blockchain Summer Bootcamp series in various African cities to drive Blockchain knowledge into innovators early enough. 

Oluwaseun David ADEPOJU

Head of Research,

Africa Blockchain Institute. 


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Blockchain Technology

Africa Blockchain Hackathon 2021 Edition Begins Registration 



Africa Blockchain Hackathon
Image Credit: Africa Blockchain Institute (ABI)

The 2021 edition of the Africa Blockchain Hackathon, a brainchild of the Africa Blockchain Institute (ABI) is ready for take-off. The initiative was created to allow young professionals, tech enthusiasts, students and policymakers amongst others to gain exposure to the opportunity of Blockchain/DLT Digital Innovations through mentorship, career and business opportunities. The Hackathon Program is a product of the partnership with FreeTON Africa (Sub Governance). The Hackathon provides a controlled, structural and sustainable mentorship model as well as a community to nurture and empower developers with potential towards building DLT and blockchain solutions. Registration for the Hackathon is already underway and the deadline is fixated on August 25, 2021. 

The contest is done in collaboration with FREE TON, an Open Source (OS)  community project created by developers of the Telegram Open Network (TON). TON OS  has more features than the Ethereum Virtual Machine and is designed as a decentralized operating system capable of handling decentralized applications. TON OS also has a stack of components that can be used by developers to create powerful applications. By making these components Open Source, anyone or everyone can view and copy fragments of the code.

The contest is open to all Africa Blockchain enthusiasts, newbies, artists, developers, policymakers and students. There is a prize of over 62,000 TONs up for grabs for the winner. The contest is open to the 54 countries in Africa for participants to build Blockchain Applications on Free TON. The aim is to add value to the FreeTON Network and the continent will equally benefit from the applications.  

According to John Kanyiri, FreeTON Africa Representative and the FreeTON Africa Team, “… we once again look forward to identifying projects culminating from this hackathon as being not only a showcase of what Africa can offer the global blockchain space but also solutions to the continent’s challenges. The creativity, ambition and sophistication of our localized developers are quite evident in the Hackathons and this time around we hope to see the same. Discovery of new talent and exposure of the same from very remote locations of Africa was witnessed in the last Hackathon and we look forward to the same this time too.”

The Hackathon is open to covering aspects of the blockchain that academia needs to know giving ample information about how the blockchain works and the current and future applications needed to change the world from the blockchain Point of View. The contest is open to both newbies and experienced developers as some of the best technical experts in the blockchain community will be there to aid you. In other words, the event is open to all who seek blockchain knowledge. 

The contest will be carried out in three sections: country competition, regional competition, and continental competition. The country and regional competitions will be held virtually however, winners of the regional competitions will get an all-expense-paid trip to South Africa for the Finals. The winners will attend the Grand Finale which will be hosted in South Africa. Participants are allowed to work on topics or applications that are peculiar to the needs of the African continent. However, some applications may include: 

  • National voting platforms
  • Fintech infrastructure/Digital Wallets (to help those who do not have access to banking)
  • Land ownership and registry
  • High tech job creation
  • Human rights protections

There are lots of prizes to be won including an all-expense paid trip to South Africa for the winners of the regionals. Other prizes includes:

1st Prize: 25,000 TONs

2nd Prize: 15,000 TONs

3rd Prize: 5,000 TONs

4th – 20th Prize: 1,000 TONs

Participants will have to follow a simple process leading up to winning amazing prizes. The first step is to submit applications for the hackathon, meet all the requirements and pitch ideas. Next, participants have to receive Acceptance Confirmation Notification/Onboarding, form a team and then join the opening session. The last part of the process involves building the application and collaborating with team members. 

Notable Dates 

Applications open July 2021.

Application Deadline: August 25th, 2021.

Hackathon Dates:  September 6th – 24th 2021. 

Begin your application here: 


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Blockchain Technology

Jelurida Africa Launches Blockchain-backed Certificate Platform, Digicert



As one of its action plans for accelerating blockchain adoption on the African continent, Jelurida Africa has launched a blockchain-backed certificate-issuing platform called MyDigiCert. The platform allows issuers to store certificates on the blockchain, and equally give requisite access to intended recipients of the certificate(s).

MyDigiCert equally provides an option for certificates to be verified on the blockchain through the use of a unique hash which would be allotted to each certificate that is duly issued by the platform. According to the Managing Director of Jelurida Africa, Adedayo Adedajo, MyDigiCert was primarily created in a bid to curb the widespread certificate fraud in African institutions and universities. With blockchain-backed certificates, the risk of forging would be little to none, as one of the most prominent features of blockchain technology is its immutability.

To upload or create blockchain-backed certificates through the platform, users can sign up with telephone numbers across several African countries, and subsequently verify issued certificates from anywhere in the world. Asides creating certificates, recipients of such certificates may equally apply to receive them, provided that such recipients possess the unique hash code which is allotted to each certificate at the point of issuance.

Due to the fact that MyDigiCert operates an immutable system for creating, issuing, receiving an verifying certificates, issues such as certificate loss, certificate fraud or unnecessary delays in certificate issuance which often embattle the African educational system can be adequately curbed. Similarly, the product’s payment plans are specially tailored according to individual needs. As such, every person would be able to find a reasonably affordable payment plan to suit his or her needs. Payments can be made through a debit card or bank transfer, all powered by Paystack. The product is offered as a subscription-based SaaS platform, and there are equally provisions for institutions that may be seeking to fully run to product through their own servers.

An in-house testing was conducted on MyDigiCert on the 6th of May, 2021. The official date for the launch of the product has been slated for June 13, 2021. In commemoration of the official launch, a blockchain workshop will be conducted for African universities.

MyDigiCert is one of the several products which Jelurida Africa is set to launch this year. In addition to its pipeline of prospective blockchain products, the company is set to launch the first Europe-Africa blockchain bootcamp for European and African developers and policy makers across both continents. For partnerships on any of Jelurida’s products or the upcoming blockchain program, you may send a mail to

Jelurida Africa
Image Credit: Jelurida Africa / CoinPost

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