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How Blockchain can save water, and more

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The designers of a unique water saving solution that uses blockchain technology to incentivise users to use less water were the winners of a special prize at the continent’s largest blockchain hackathon held in Cape Town last week.

The Unlock The Block hackathon was hosted by Linum Labs and the African Institute of Financial Markets And Risk Management (AIFMRM) and culminated in Cape Town’s first ever Blockchain Symposium.  Almost 80 participants from around the world attended.

The special prize was awarded to project SudoTesla, designed to transfer water tokens via the Ethereum network to a smart meter. The tokens are allocated by the designated utility and users are compensated for water that they save.

The special prize awarded the team, led by Michael Sanne of South Africa, included a month at Absa’s Rise facilities at the Woodstock Exchange in order to further develop their project. Sanne said he hoped it would be possible to bring such a project to fruition one day, even if it was challenging. “Water is a scarce resource, and this solution aims to help manage that resource”, he said.

The overall first prize was split between two teams: the first being BlockPoll, who built a blockchain voting system facilitating better governance in companies, as well as transparency and security in elections. Judge Co-Pierre Georg, Associate Professor at AIFMRM, described their solution as “incredibly slick”.

BlockPoll’s team, consisting of WhenMoon?’s Brandon Kenley Verkerk, Christopher Maree, Iordan Tchaparov and Kavilan Nair, say the design’s main advantages are that it’s decentralised, immutable, and easily auditable. Moreover, they add, it’s easy to use, secure, and open source.

The other winning team was Proof of Steak by Yuna, which Georg described as “a really awesome tech solution to a true African issue”.  The team, consisting of Kungela Mzuku, Kyle Roos and Una Singo, allows farmers to use their cattle as collateral on a block-chain, enabling peer-to-peer lending. The team described this as a “uniquely African” and “contextual approach” which would “allow anyone in the world to invest in your cow”. Farmers register their cattle on the blockchain, which functions as an immutable ledger, and investors provide funding to the farmer.

A further special prize for innovation was awarded to team EWAN from Berlin, who built a curation market application.

Prior to the event, Linum Labs’ Devon Krantz said beyond the immediate value of cryptocurrencies, blockchain technology held great potential for “changing systems that already exist”.

“The event has shown us two things, firstly that the applications of blockchain technology in improving people’s lives in Africa are immense and second, it is much easier to build those applications than many people think – we just need to work together,” added Paul Kohlhaas, Founder of Linum Labs.

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Front from left: Una Singo (Yuna), Kelly Parkhurst (Absa), Christopher Maree(WhenMoon),Brandon Kenley Verkerk (WhenMoon), IordanTchaparov (WhenMoon), Kavilan Nair (WhenMoon), Kungela Mzuku (Yuna), Kyle Roos (Yuna) Back from left: Sean Mouton (Absa), Julien Eluard (Status), Co-Pierre(AIFMRM), Paul Kohlhaus (Linum Labs), Andrew Tudhope(Linum Labs)

“This is a historic moment in time,” Georg said at the event. “Our economy will soon embark on a fourth industrial revolution.” Economic leadership would lie in the provision of scarce skills, he said. “There is therefore a need to think outside the box. Something clicked in our minds. This led to the hackathon.” Collaborations and partnerships of this kind, he added, would continue to address the need for scarce skills.

The Unlock the Block blockchain Hackathon was a 10-day long event during which participants learned some of these scarce skills, including how to develop blockchain applications. The first five days were dedicated to a digital “boot camp”, during which participants were exposed to overarching fintech trends and the blockchain tools needed to develop decentralised applications and protocols. Topics covered included Bitcoin, Ethereum and other cryptocurrencies, and sessions were led by industry experts.

At the end of the hackathon, participants were given three days to develop their own blockchain application. The Symposium occurred on the final day.

The Hackathon was sponsored by both South African and international businesses, including Absa, Microsoft, Old Mutual, Status, Foundery, Consensys, Citi, Pick ‘n Pay, UCT and Rise.

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Android Go puts reliable smartphones in budget pockets

Nokia, Vodacom and Huawei have all launched entry-level smartphones running the Android Go edition, and all deliver a smooth experience, writes BRYAN TURNER.

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Three new and notable Android Go smartphones have recently hit the market, namely the Nokia 1, the Vodafone Smart Kicka 4 and the Huawei Y3 (2018). These phones run one of the most basic versions of Android while still delivering a fairly smooth user experience.

Historically, consumers purchasing smartphones in the budget bracket would have a hit-and-miss experience with processing speed, smoothness of user interface, and app stability. The Google-supported Android Go edition operating system optimises the user experience by stripping out non-important visual effects to speed up the phone. Thish allows for more memory to be used by apps. 

Google also ensures that all smartphones running Android Go will receive feature and security updates as they are released by Google. This is a major selling point for these smartphones, as users of this smartphone will always be running the latest software, with virtually no manufacturer bloatware.

Vodafone Smart Kicka 4

At the lowest entry-level, the Vodafone Smart Kicka 4 performs well as a communicator for emails and WhatsApp messages. The 4” screen represents a step up for entry-level Android phones, which were previously standardised at 3.5”.

The display is bright and very responsive, while the limited screen real estate leaves the navigation keys off the screen as touch buttons. It uses 3G connectivity, which might seem like an outdated technology, but is good enough to stream SD videos and music. Vodacom has also thrown in some data gifts if the smartphone is activated before the end of September 2018. 

Its camera functionalities might be a slight let down for the aspirant Instagrammer, with a 2MP rear flash camera and a 0.3MP selfie snapper. Speed wise, the keyboard pops up quickly, which is a huge improvement from the Smart Kicka 3. However, this phone will not play well with graphics-intensive games. 

Nokia 1

Next up is the Nokia 1, which adds a much better 5MP camera, improved battery life and a bigger 4.5” screen. It supports LTE, which allows this smartphone to download and upload at the speed of flagships. It also sports the Nokia brand name, which many consumers trust.

Although the front camera is 2MP, the quality is extremely grainy, even with good lighting. This disqualifies this smartphone for the social media selfie snapper, but the 5MP rear camera will work for the landscape and portrait photographer. 

The screen also redeems this smartphone, providing a display which represents colours truly and has great viewing angles. Xpress-on back covers allows the use of interchangeable, multi-coloured back covers, which has proven to be a successful sales point for mid-range smartphones in the past. 

Huawei Y3 (2018)

The most capable of the Android Go edition competitors, the Huawei Y3 (2018) packs an even bigger screen at 5”, as well as an improved 8MP rear camera and HD video recording. The screen is the brightest and most vibrant of the three smartphones, but seems to be calibrated to show colours a little more saturated than they actually are. 

Nevertheless, the camera outperforms the other smartphones with good colour replication and great selfie capabilities via the 2MP front camera – far superior to the Nokia 1 despite the same spec. LTE also comes standard with this smartphone and Vodacom throws in 4G/LTE data goodies until the end of September 2018. The battery, however, is not removable and may only be replaced by a warranty technician.

Comparing the 3

All three smartphones have removable back covers, which provide access to the battery, SIM card and SD card slots. The smartphones have Micro USB ports on the bottom with headphone jacks on the top. The built-in speakers all performed well, with the Y3 (2018) housing an exceptionally loud built-in speaker. 

Although all at different price points, all three phones remain similar in performance and speed. The differentiators are apparent in the components, like camera quality and screen quality. It would be fair to rank the quality of the camera and battery life by respective market prices. The Vodafone Smart Kicka 4 performed well, for its R399 retail price. The Nokia 1, on the other hand, lags quite a bit in features when compared to the Huawei Y3 (2018), bwith oth retailing at R999.

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SA gets digital archive

As the world entered the centenary of Nelson Mandela’s birth on Mandela Day, 18 July 2018, South Africa celebrated the launch of a digital living archive. 

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The southafrica.co.za  site carries content about the country’s collective heritage in South Africa’s eleven official languages.

Designed as a nation building,  educational and brand promotion web based tool, the free-to-view platform features award-winning photographic and written content by leading South African photographers, authors, academics and photojournalists.

The emphasis is on quality, credible, factual content that celebrates a collective heritage in terms of the following: Cultural Heritage; Natural Heritage; Education; History; Agriculture; Industry; Mining; and Travel.

At the same time as reflecting on the nation’s history, southafrica.co.za celebrates South Africa’s natural, cultural and economic assets so that the youth can learn about their nation in their home language.

Southafrica.co.za Founder and CEO Hans Gerrizen conceptualised southafrica.co.za as a means for youth and communities from outlying areas to benefit from the digital age in terms of the web tool’s empowering educational component.

“We can only stand to deepen our collective experience of democracy and become a more forward planning nation if we know facts about our nation’s past and present in everyone’s home language,” he says.

Southafrica.co.za, with sister company Siyabona Africa, is the organiser and sponsor of the Mandela: 100 Moments photographic exhibition that runs until 30 September at Cape Town’s V&A Waterfront-based Nelson Mandela Gateway to Robben Island.  The 3-month exhibition, which runs daily from 08h00 until 15h00, is showcasing one hundred iconic Nelson Mandela images taken by veteran South African photojournalist and self-taught lensman Peter Magubane.

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