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Web 3.0 Tech

What do Cryptocurrency miners calculate?

Written by : joel nzoda on  Digilah (Tech Thought Leadership)

Miners perform cryptographic hashes (two successive SHA256) on what is called a block header. For each new hash, the mining software uses a different random number called the nonce. The nonce is an integer value with 32 bits of memory allocated to it.

This means that it is limited to only around 4 billion possibilities, which with the network’s current hashing power is largely insufficient. We therefore add in the hash timestamp of the block in Posix time , constantly updated. Another variable element on which minors can play: the arrangement of transactions.

Including the block number, timestamp, nonce, block data and hash of the previous block, the hash produced will look like this:

93ef6f358fbb998c60802496863052290d4c63735b7fe5bdaac821de96a53a9a

This hash can be converted into a very long number. (It is a hexadecimal number, which means that the letters AF are the numbers 10-15). To make mining difficult, there is something called target difficulty.

To create a valid block, a miner must find a hash that is below the target difficulty. For example, if the difficulty is:

10000000000000000000000000000000000000000000000000000000000000

any number that starts with a zero would be accepted and considered below target. Example:

0787a6fd6e0782f7f8058fbef45f5c17fe89086ad4e78a1520d06505acb4522f

If we decrease the target to:

01000000000000000000000000000000000000000000000000000000000000

we need a number starting with two zeros:

00db27957bd0ba06a5af9e6c81226d74312a7028cf9a08fa125e49f15cae4979

Because the target is a bulky number with many digits, a simpler number is usually used to express the current target. This number is called the mining difficulty. Mining difficulty is scaled to the first block created. Which means that a difficulty of 70,000 means 70,000 times more computing power than it took Satoshi Nakamoto to generate the first block, when he was the only miner and only using the CPU of a computer.Afficher l’image source

When mining a block, miners include a timestamp in the block. Since 2016, this ” timestamp ” allows the network to adjust to the passage of time by calculating the median time spent (MTP), that is to say the median of the timestamps of the last 11 blocks. To be valid, a timestamp cannot be more than two hours in the future relative to the node’s subjective time.

The difficulty changes every 2016 block. The network adjusts the difficulty so that the generation time of these 2016 blocks is 14 days, regardless of the computing power deployed.

Therefore, the difficulty follows the power of the network. The adjustment algorithm is as follows: if the time measured in the period of 2016 blocks is less than 20,160 minutes (expected time), then the difficulty increases to comply with the assumed computing power; if it is higher, then the difficulty decreases. Retargeting is limited to a factor of 4 (multiplication as division) to avoid instabilities.

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Web 3.0 Tech

Here’s what you don’t know about cryptocurrency mining

Written by : joel nzoda on Digilah (Tech Thought Leadership)

Bitcoin transactions are secured. To this end, miners perform mathematical calculations for the Bitcoin network with their computer equipment.

As a reward for their services, they collect the newly minted bitcoins along with the fees from the transactions they confirm. It is halved approximately every four years. On May 11, 2020, this reward increased to 6.25 bitcoins per block.

Miners (or miners’ cooperatives ) are in competition and their income is proportional to the computing power deployed.

“To describe mining, one could use the example of a gigantic sudoku contest where participants start a new grid as soon as someone finds a solution, and whose difficulty adjusts so that on average a grid is resolved every ten minutes. Imagine a giant sudoku grid, with several thousand rows and columns. It would be quite easy to verify that a completed grid is well filled. But […] it will take a lot of work to finish it! The difficulty of the grids can be adjusted by changing their sizes […], but they can still be checked easily even if they are very large. The puzzles to be solved in the bitcoin network are based on cryptographic hashes and have the same characteristics as these sudoku grids: they are very difficult to solve but it is very easy to verify that a solution is correct, and their difficulty can be adjusted. –Andreas M. Antonopoulos.

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Web 3.0 Tech

How to mine bitcoins? In Europe

Written by : joel nzoda on Digilah (Tech Thought Leadership)

Bitcoin mining is rarely a profitable business for individuals. Bitcoin ‘s popularity has generated huge competition which makes it inaccessible.

Most often only industrial sites manage to profit from this activity. Before you venture into this adventure, I invite you to read the (already old) testimony of Greg Ryder and to visit the space dedicated to mining on the Bitcointalk forum .

Note in passing the existence of companies that practice the “cloud mining and sell computing capacity to their customers who receive in exchange the fractions of mined bitcoins, after deduction of management fees. Be careful though, some services are often very disappointing, when it’s not just pure scams. In general, even if practiced seriously, cloud mining is rarely profitable.

Practiced on French (or European) soil, cryptocurrency mining is only recommended for people who have, for domestic purposes, their own green electricity generator (solar, wind, geothermal, hydraulic) without having the possibility of reselling production surpluses on the public network.

Another possibility to make mining rational in France is to use the heat produced to produce hot water, this is the proposal of the French startup WiseMining.

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Logistic & Travel Tech Web 3.0 Tech

What is virtual reality and why are aged care providers embracing it?

Written by : Colin Pudsey on Digilah (Tech Thought Leadership)

If you’ve been looking around at new ways to support your residents, chances are you’ve heard the words “virtual reality” being offered as a new idea. Maybe you’ve even seen pictures of people wearing headsets and waving their arms about.

But what is virtual reality, or VR, and why is it making such an impact in the aged care space?

Immersive beyond belief

Virtual reality is a simulated environment that looks and feels incredibly realistic. A key tool for using VR, is the headset, which allows you to explore this digital space by looking up, down and all around you. Unlike a computer or tablet which has a fixed field view, virtual reality adapts to your head movements to immerse you in a rich 360-degree, 3D environment.

This means that putting on a virtual reality headset feels like stepping into a completely different world. But the big question is, what can you do in this immersive virtual space?

The impossible becomes possible

Anything you can imagine! For the adrenaline seekers, how about skydiving, swimming with dolphins, or racing in an F1 car? For those looking for a calmer escape, maybe chilling out on the beach, exploring a tropical rainforest, or visiting a museum?

The technology is limitless, and it can even allow us to experience things that are impossible – a trip to mars perhaps? Or walking around the interior of the Titanic? VR can make that happen too.

That all sounds fun, but we’re talking about older adults here. Why would care providers be so keen to take their care recipients out of the four walls of a facility (virtually)?

Virtual experiences with clinical benefits

The answer lies in research, and whilst these experiences are certainly fun for all ages – they’re anything but frivolous. 

Virtual reality experiences have been shown to improve the quality of life in older adults. 

Participants in an American study were “less socially isolated… less likely to show signs of depression” and “feeling better about their overall wellbeing”. Another study from Taiwan revealed that VR “can provide older adults with the confidence to get involved in social activities”.

So, it’s clear that VR can have a range of positive impacts on care recipients. But the most exciting benefits of all, are linked to who we are as individuals.

A personal journey

Imagine being able to visit a childhood home, a church you were married in or a place you went on holidays with your family? For those of us born overseas, what about taking a journey back to experience familiar sights and sounds, and reconnect with your culture? Maybe a faith-based pilgrimage or personal spiritual practice?

VR is at its best when it’s partnered with a deep understanding of the individual and what’s important to them and that’s how innovative care providers are getting the most out of VR.

By building upon their strong connections with the individual, carers can deliver meaningful personalized experiences that leverage the power of VR to connect to identity.

For all walks of life

No matter what stage of life an individual is at, virtual reality may provide engagement, excitement, and an opportunity for connection.

Particularly for those of us supporting a loved one with dementia, as VR has been shown to “positively affect the cognitive and physical functioning of those with mild cognitive impairment or dementia”.

And what could be more important for someone living with dementia, than to reconnect them to their true self, their culture, and their loved ones. Now we’re really pushing the dial with “joy”!

Sometimes what’s important isn’t a clinical benefit…

Going beyond the clinical

What is immediately apparent when you try on a VR headset is that it’s like magic. Whilst there may be benefits in wellbeing and cognitive function, it’s an experience to bring wonder, enjoyment, and positive emotions and this can be supercharged when sharing the same experience in a group VR setting.

Any tool that can help bring significant and measurable joy, happiness, and excitement to the life of care recipients is one that’s worth exploring.

Ultimately, that might be the driving factor in the growing use of VR in the aged care space, a growth that’s led by innovative companies.

Changing Lives through Virtual Reality

Melbourne based virtual reality startup, SilVR Adventures, has been taking care of recipients on shared virtual reality experiences since 2019. 

Providing a turnkey VR solution to care providers across Australia and New Zealand, they enable care team members to take people with a variety of needs on immersive, group VR experiences.

Our content focuses on storytelling, emotional journeys and reminiscence therapy. We want to build engaging and inspiring experiences for older adults, no matter what stage of life they’re at.

With the largest library of world tours, spiritual journeys, and bucket list events, we’re experimenting with new ways to engage care recipients. But the real magic happens when the headset comes off.

Creating meaningful connections

The most powerful moments in working with VR are the social connections it stimulates.

“We’ve found that the winning formula is taking people on adventures together. They’ll have an amazing time travelling the world or experiencing something brand new, then the headsets come off and they’re chatting about where they went, where they want to go to next and sharing memories and stories from the past. It’s incredible to watch!”

And it’s clear that aged care providers agree too, with some around Australia establishing weekly ‘Travel Clubs’ to build camaraderie and friendship through shared experience across multiple sites.

We’re super excited to be able to connect up to 40 participants around the world in a shared virtual reality experience, then have them meet in a digital space afterwards like our virtual café and chat about it.

The ability to link people couldn’t have come at a better time with restrictions and lockdowns significantly increasing feelings of isolation, loneliness, and depression among our elders.

The future of the technology

Virtual reality has made great strides in the past few years, but it still has an exciting journey ahead. With companies like Facebook and Google making big investments in the space, it’s clear that the technology will continue to grow and develop.

There’s room to grow in the personal care space too, with VR companies pivoting away from residential facilities and beginning to offer services to be used in home care too.

“So far there’s nothing on offer for people in the home, that’s why SilVR Adventures is thrilled to be launching our home care solution in 2021. We’ll be able to support older adults aging in place with enhanced connections and deliver meaningful virtual adventures, in their own home – and that’s something to get excited about.

A rich and incredible virtual world

As we head towards 2023, there is still a lot of uncertainty, but whatever happens it’s clear that we need to find new ways to stay connected and engaged, and that couldn’t be truer for those of us receiving care.

Leading aged care providers around Australia are increasingly turning to the immersive power of VR as a potential tool for reducing isolation, improving wellbeing, and strengthening connections. 

Very soon personal carers in the home will be taking this technology for a spin too.

Watch a video to see how our seniors are enjoying themselves with the new found Virtual reality – https://www.youtube.com/watch?v=XYDr9PAQLMw

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Digi Tech

I am Neelam Agrawal

Written by : Neelam Agarwal on Digilah (Tech Thought Leadership)

I am a passionate digital marketer and co-founder of our Digital Marketing Agency,Brandstrate Solutions”. 

After a break of 7 years from corporate life, performing my duties as a full-time homemaker, my second innings started during covid times as a sales manager and that’s when I realized my capabilities and the evolving technology and digitalization. All these put together, my aspirations took a new flight and “Brandstrate Solutions” came into existence and we started ‘Brandstrate Solutions’ with just one idea and a laptop and a few leads in hand. 

During Covid 2019, we saw the biggest digital transformation ever. 

To name a few,

Transactions changed from cash to Debit/credit cards to fully Digital Gpay/payTM, Phonepe mode. 

Schools and educational institutes were forced to understand the nuances on online teaching and educationalists had to become tech savvy to support the learning process.

Even hospitals and the health care fraternity apart from covid care had to establish a digital presence and connect with technology to take care of their out-patient treatments. 

Product based companies surviving just with in-store purchases had to look for new promotion strategies to promote their product/brand.

During lockdown, many companies struggled to create their digital presence, and as an experienced Senior Business Development Executive with a demonstrated history of working in the marketing and advertising industry and skilled in 

Analytical Skills, Communication, Marketing and Project Management, my passion for work took a new turn…a one stop solution for all digital marketing needs. 

Technology is impacting the way we; digital marketers organize our client’s budgets. Where traditional marketing efforts meant spending money on newspaper or TV advertisements, we, digital marketers utilize technology such as Google Analytics. With investing resources into search engine optimization (SEO) , we improve the ranking of our client’s website so that they are able to target specific keywords and attract website traffic from their target audience.

From internet-of-things technology and remote collaboration to AI and business data analytics, new technology has and continues to greatly impact business marketing. 

To start, more devices than ever before are connected to the internet.

In a single day, you could be checking your email on your laptop, scrolling through Instagram on your phone, and binge-watching Netflix on your smart TV. Internet-of-things technology has resulted in a large network of smart devices meaning unprecedented opportunities for new lines of business and increased revenue.

Thanks to technology, we as digital marketers have more data and tools at our disposal, and are able to devote more resources to tasks that drive business growth and bring in revenue. 

Some digital marketers are adopting a multi-channel, multi-device approach to accurately track consumers through their entire buyer’s journey. They are doing this instead of just looking at the last touchpoint before the purchase occurred. AI and machine learning offer impressive tracking and analytics capabilities. This makes it possible to determine which touchpoints are most effective in leading to a conversion.

Social media channels like Instagram, Pinterest, Facebook etc have innumerable stories of businesses that started with just social media presence and through proper marketing and campaigning are way ahead of their competitors. 

Businesses must adapt the way they do business in order to keep up with advancements in technology. It’s equally important to stay up to date with how technological advancements are influencing consumer expectations. For example, Instead of hiring (and paying) someone to help with customer service issues, you could use online chatbots to assist with communication.

In the ever-evolving landscape, I am glad to be able to serve newbies in the business network through Brandstrate ‘s new technology supportive strategies. Our happy clients, their testimonials and their revenue graph become self-explanatory when it comes to Brandstrate’s contribution into effective marketing.

Thanks, NEELAM

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AI Tech Art Tech

How Technology can help India’s Traditional Craftspeople

Written by : Suki Iyer on  Digilah (Tech Thought Leadership)

A recent conversation with a friend got me thinking of the intersection between technology, design, the preservation and flourishing of traditional handicrafts, and communities. 

The Indian handicraft industry is a highly labor intensive one, with more than 7 million artisans, a majority of whom are women and largely underprivileged.

This industry, which is traditionally a major source of revenue generation in rural India, has been in decline (though there have been several efforts to support it), and has been hit hard by the pandemic as well. 

What are the glaring gaps in the market for traditional craft? (specific to India, but this could apply to the world as well). To my mind the key gaps are in design, and in business building capacities

Local artisans lack the ability to meet the needs of new markets and are forced to find low unskilled employment in urban industries. One of the major factors contributing to this is that artisans are not trained to contemporize their designs. 

In this article, I’d like to focus on design and the role technology can play in meeting the current gaps. 

While some work has been done on modernizing design, a lot of craft continues to center around traditional design, often not appealing to modern sensibilities, and thus not being able to build the foundation of a sustainable business. How can technology help? For example, AI techniques have been leveraged for emulating creativity and imagination – for image generation, style-transfer, image-to-image translation; for pattern generation, and color-transfer etc.  

An interesting study (Raviprakash et al., May 2019) describes how AI techniques can be used to contemporize design, while keeping the underlying technique unchanged. It generated colored motifs and patterns that can be manufactured into physical products. This study experimented with using AI on the popular IKAT weave. Unlike other dyeing techniques, in IKAT the yarn is dyed BEFORE it is woven. This is what gives it its unique shading effect. This property was harnessed by the researchers to create a contemporary design. 

A picture containing text Description automatically generated

The researchers first used a black motif using an AI technique trained on a set of 1000 paintings from a famous European painter, Piet Mondrian, and their gray-scale counterparts. The simplicity of these paintings along with the use of only primitive colors made them an ideal choice for our approach, since the model is able to learn primitive colorization of a motif from a relatively small training dataset. 

The model used a generator which colorizes the input and a discriminator that learns to distinguish between the real paintings and the colorized images. The discriminator’s output determines the loss of the generator, which the generator tries to minimize, effectively colorizing images to make them indistinguishable from real paintings. 

These motifs were re-colored with colors of an inspiration image using a statistical approach of global color transformation, and the design was post-processed to a grid that could be readily used for dyeing, as each cell is of a single color. 

Products manufactured with designs generated using the above approach are found to be much more visually appealing than their traditional counterparts in the present market. Local artisans used these designs to manufacture and sell products successfully. A person painting a picture Description automatically generated with medium confidence

There are several such examples of how technology can modernize craft without compromising on the underlying uniqueness of a particular craft technique. 

Investments need to be made in building such design capacity amongst artisans so they can once again take their place as valued centers of their communities. 

Suki Iyer

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Logistic & Travel Tech

eVTOL Aircraft Market To Enlarge At a Remarkable CAGR Of More Than 21%

Written by : Nisha Naroliya on  Digilah (Tech Thought Leadership)

Electric Vertical Takeoff and Landing (eVTOL) Aircraft Technology

Electric vertical take-off and landing (eVTOL) are some of the latest innovations in the aerospace industry. eVTOL vehicles are electric and function more like a drone

Large omnidirectional fans assist the aircraft move in various directions and even take off vertically. While designs vary between developers, most seem to resemble the drone form. The future of aerospace mobility deliberately relies on electric vertical take-off and landing (or eVTOL). After years of research and development, a new vehicle class is kicking off to emerge. If eVTOL aircraft reach mass adoption, it could change the way of moving people and cargo.

A new market research study by Value Market Research is forecasting that the global eVTOL Aircraft Market will record healthy growth during the time period 2020 and 2027 and will progress at a CAGR of 20%. 

Also, the study projects that the market would accomplish a worldwide valuation of $ 275 million by 2027 with continued opportunities in key enabling technologies, such as aviation-grade batteries, propulsion systems, and electric motors, eVTOL ground infrastructure, and composite materials.

The growing urban population is leading to increasing road traffic congestion in urban areas and is promoting market growth. For instance, according to the United Nations (UN) report, by 2050, about 70% to 80% of the global population is estimated to reside in cities. This has also led to an upsurge in the eVTOLs for air-taxi services. Moreover, air-taxis are intended to meet future demand for regional commutes ranging from 30 miles to 300 miles, thus driving the demand for eVTOLs. With the usage of eVTOLs in the air-taxi services form, aerial travel will be an affordable transport dimension over shorter places.

Along similar lines, the growing need to augment operational efficiency, and to decrease in human intervention for intercity and intracity transportation by means of eVTOLs, are positively influencing the electric Vertical Take-off and Landing (eVTOL) aircraft’s market growth.  There are several companies and municipal corporations currently working on eVTOL aircraft manufacturing for air mobility solutions,” remarks a study analyst.

Key players in the market such as Volocopter Gmbh, Joby Aviation, Lilium Gmbh, Ehang Holdings Ltd, Airbus SE, and Boeing Co., and others are trying to establish a foothold in regional and global markets. Their strategies majorly revolve around engaging partnerships with governments, technical service providers, infrastructure developers, and public associations. There is a huge level of product innovation, which has led to intense product competition amongst the market participants. Along similar lines, conventional growth strategies such as mergers, acquisitions, and expansions will continue to shape the competitive structure. 

On these lines: In 2020, Japan’s SkyDrive and German Volocopter were planning to commercialize eVTOL in Japan by 2023.

In the same year, Bell Textron declared that they are partnering with Japan Airlines and Sumitomo Corporation to determine the on-demand air mobility ecosystem growth in Japan via Bell’s Nexus 4EX eVTOL air taxi.

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Digi Tech

Digitally Yours

Written by Shivam Sharma on Digilah (Tech Thought Leadership)

In today’s time, technology is even in the deepest corners of each and every existing community of this world.

If I specifically speak about my own journey as an avid user of technology, I’ve been using technology ever since it came into popularity, but the density of use just multiplied by magnitudes when the pandemic hit.

Post-pandemic, things started bending towards creating content rather than just consuming it. Until the pandemic hit, I only used the technology towards a certain tangent and to a limit, which usually included digital classrooms, emails and just some YouTube videos. But, post-pandemic, the limit just became limitless with every dimension, everything just changed. 

Things like LinkedIn and Twitter came into my life and with that, creating content became a part of my life henceforth the digital journey became even more vivid and deep. You see, with the purge of this digital era, every single person on this planet has started building their own “digital personality” which generally comes with a cost, the cost of mental stability. Talking about myself, obviously, I am not the same person as I am on any social media platform, because it is just a part of my overall personality and not my only personality.

My journey has been very amazing because I have been witnessing the process of progress in the digital world ever since and it feels genuinely amazing to be a part of such a generation.

I mean with platforms like Google Meet, Zoom call or even Skype you can technically meet any human being in any corner of the world. With platforms like Notion you can basically create a second brain of yours with everything in and out of your brain and even your mind. 

With platforms like WhatsApp or messenger you can essentially talk to anybody without even meeting them.

With platforms like Slack and Wurker you can just make a virtual workspace altogether, just like your office.

With things like your own mobile phone or laptops you can just do whatever you want to and possibilities are just endless, literally, you may start tens of businesses just by an internet connection and a good laptop or workstation.

With things like Google Maps or any maps, you can just hop on to any place in the world in your choice of comfort!

 I, in my personal as well as my professional life, have been using such beautiful and radical pieces of technology and they have made my life much more efficient, all because of obvious reasons.

As a concluding note, I would just like to mention a cliche which is indeed the truth of the century, which is, “life wouldn’t have been fair without digitalisation”, also now that every digital element is it smartphones, laptops or even the internet is becoming so pocket-friendly with an amazing durability and quality, this saying just makes even more sense!

As you can probably see in the featured image, everything and anything which is visible is pretty much possible because of the digitalisation of major elements of life, be it communicating (telling and listening, not just hearing), expressing, sensing, feeling etc. 

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HR Tech Digi Tech

TODAY’S WORK ENVIRONMENT AND DELICACY OF TECHNOLOGY 

Written by: Shubhra Aggarwal on  Digilah (Tech Thought Leadership)

“Our future success is directly proportional to our ability to understand, adopt and integrate new technology into our work”- Sukant Ratnakar

Workplace technology is growing exponentially. From the industrial age to current day, technology has changed manifolds. Not only has it helped in increasing productivity, it has also made “Work from anywhere” super easy and a reality.

Due to modern interpersonal communication technology, employees communicate more clearly and that’s leading to better results.

The onset of the global pandemic reshuffled the world of work. Businesses digitized themselves and shifted to working remotely overnight, all thanks to technology. With flexible workforces and mass adoption of remote and hybrid work models, many untapped talents are now shining bright. With talent not being restricted by geographical boundaries, both employers and employees are participating in the “Gig Economy.” Moving on an exponential growth trajectory, the gig economy workforce is projected to increase 3X from 7.7 million in 2021 to 23.5 million in 2030.

With every pros, comes the cons and the same is true for technology.

From separating employees by screens creating miscommunications, to the world of automated voicemails that can make customers upset, many believe that “Old is Gold.”

At the same time, with greater flexibility due to Work from Home or freelancing in the gig economy, people are often working overtime, over the weekend and even while sick. This has disbalanced the “Work life balance” and has mentally affected many people. From burnout, insomnia to depression, all have risen with more stress.

According to Technology and Innovation Report 2021, every spurt of progress has been associated with sharper inequality between countries. New technologies can have severe downsides if they outpace a society’s ability to adapt. To benefit from frontier technologies, countries need to promote their use, adoption, and adaptation, while addressing their potential adverse effects. 

Moreover, International cooperation should: 

Build stronger national capacities in STI,

Smooth technology transfer,

Increase women’s participation,

Improve foresight and technological assessment and promote inclusivity.

Moreover, Policymakers should direct technological change towards meeting societal needs and reducing inequalities; developing countries should adopt frontier technologies while continuing to diversify their production bases by mastering existing technologies; social protection systems should be strengthened to provide safety nets to workers who may lose their livelihoods.

Everything is a boon and a brain, it depends on us how to take it. To make technology a boon, effective communication, connectivity, being flexible but not insensible is the key! We must master the art of balancing our work and our life, otherwise we might not enjoy the super delicacy that the technology provides!

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Web 3.0 Tech

INTRODUCTION TO BLOCKCHAIN AND METAVERSE

Written by : joel nzoda on Digilah (Tech Thought Leadership)

GOALS

    • Define blockchain
    • Characterize a blockchain
    • Usefulness of blockchains
    • Web 3.0 and the Metaverse
    • NFT or non-fungible tokens and their usefulness

BLOCKCHAIN 

Developed from 2008, blockchain is, first and foremost, a technology for storing and transmitting information. This technology offers high standards of transparency and security because it works without a central control body. More concretely, the blockchain allows its networked users to share data without an intermediary.

Source : https://www.jlconsulting.fr/media/BS_20190614_BlockChain.png

CHARACTERIZE A BLOCKCHAIN

In practice, a blockchain is a database that contains the history of all exchanges made between its users since its creation. Its main characteristics are:

    • The identification of each part is carried out by a cryptographic process

    • The transaction is sent to a network (or storage “node”) of computers located around the world.

    • Each “node” hosts a copy of the database in which the history of the transactions carried out is recorded. All stakeholders can access it simultaneously

    • The security system is based on a consensus mechanism of all the “nodes” each time information is added. Data is encrypted and authenticated by “data centers” or “miners”. The transaction thus validated is added to the database in the form of a block of encrypted data (this is the “block” in blockchain)

    • Decentralized security management prevents transaction tampering. Each new block added to the blockchain is linked to the previous one and a copy is transmitted to all the “nodes” of the network. The integration is chronological, indelible, and tamper-proof.

Source : https://www.economie.gouv.fr/files/files/2019/infog-block-chain.jpg

USEFULNESS OF BLOCKCHAINS

The blockchain represents a major innovation that is used in particular in the banking sector. Indeed, historically, blockchain technology was developed to support transactions carried out via cryptocurrencies/crypto-assets (including bitcoins which are the most well-known form) and which have the main characteristic of not depending on an organization centralizer (like a central bank) and to be international.

But its use is not limited to cryptocurrencies. Many fields and sectors of activity, commercial or non-commercial, public or private, already use the blockchain or plan to do so in the years to come. The uses of blockchains and other technologies include:

    • In the banking sector, technology opens up the possibility of validating transactions without the intermediary of a clearing house, which should make it possible to certify transactions in much shorter timeframes. The blockchain can also promote the sharing of information between competing players in a financial centre while respecting the secrecy of their commercial data and, in doing so, facilitate the management of common structures or instruments by reducing contact costs and administration fees.

    • In the insurance sector, the contribution of the blockchain is due, for example, to the automation of reimbursement procedures and the alleviation of certain formalities at the expense of companies and their customers, provided that the assumptions and conditions of compensation and damage are clearly established.

    • In the logistics sector, the blockchain has two interests:

    • ensure product traceability, as well as the memory of the various interventions on a production and distribution chain.

    • reduce formalities and create the conditions for cooperation between actors in a sector, particularly in terms of information exchange. This use could also find an application in the agri-food sector for food traceability, particularly interesting in the event of a health crisis.

    • In the energy sector, by authorizing the exchange of services and values outside a central management body, the blockchain potentially creates the conditions for implementation on a more or less large scale depending on the technical capacities of local networks. production, exchange and resale of energy to balance supply and demand at all times, which is a major constraint for electricity networks in particular.

But many sectors are potentially affected by the use of blockchain technology: health, real estate, luxury, aeronautics, etc.

Using blockchain has many benefits, including:

    • The speed of transactions thanks to the fact that the validation of a block takes only a few seconds to a few minutes.
    • Security of the system, which is ensured by the fact that the validation is carried out by a set of different users, who do not know each other. This protects against the risk of malicious intent or hijacking, since the nodes monitor the system and check each other
    • The productivity and efficiency gains generated by the fact that the blockchain entrusts the organization of exchanges to a computer protocol. This mechanically reduces the transaction or centralization costs existing in traditional systems (financial costs, control or certification, use of intermediaries who are remunerated for their service; automation of certain services, etc.).

WEB 3.0 AND THE METAVERSE

As conversations began to shift from Bitcoin (BTC) to other larger crypto projects such as Ethereum network upgrades and central bank digital currencies, or CBDCs, media coverage would suggest that widespread adoption of crypto is already well advanced. But it is clear that the majority of people do not know what it is.

The Metaverse (in English) or Métavers (in French) is a generic term for technologies that make it possible to create an entire (virtual) digital universe like our real universe. This universe can be extremely detailed and include a wide variety of different worlds, often also called virtual environments. People can join this Metaverse using different technologies and interact with each other. However, instead of being present in person, the user creates an avatar which is their representation in the Metaverse.

Source : https://i0.wp.com/stylistme.com/wp-content/uploads/2022/02/Metaverse-guide-tuto.png?w=1280 HYPERLINK “https://i0.wp.com/stylistme.com/wp-content/uploads/2022/02/Metaverse-guide-tuto.png?w=1280&ssl=1″& HYPERLINK “https://i0.wp.com/stylistme.com/wp-content/uploads/2022/02/Metaverse-guide-tuto.png?w=1280&ssl=1″ssl=1

However, the Metaverse doesn’t just want to be a massively multiplayer open-world gaming platform (RPG MMO). It is already beginning to be a virtual space where people work, earn money (by spending it), meet people, and invest in real estate. In short, where you can live another life.

Technologies like Augmented Reality (AR) and Virtual Reality (VR) are important levers for the Metaverse, as they will help create an incredible sense of immersion in another’s skin and in another universe. However, there is one project that may well facilitate mainstream adoption of crypto: Web3.

To better understand the evolution of these two technologies, an illustration between Web2 and Web3 as support for the Metaverse.

Source: https://i0.wp.com/stylistme.com/wp-content/uploads/2022/02/Web-3.0-evolution-Internet.jpg?w=1024 HYPERLINK “https://i0.wp.com/stylistme.com/wp-content/uploads/2022/02/Web-3.0-evolution-Internet.jpg?w=1024&ssl=1″& HYPERLINK “https://i0.wp.com/stylistme.com/wp-content/uploads/2022/02/Web-3.0-evolution-Internet.jpg?w=1024&ssl=1″ssl=1

NFTs (NON FUNGIBLE TOKENS ) AND THEIR USES 

NFT are the three initials of Non-Fungible Token, which translates to non-fungible token. That doesn’t necessarily make things any clearer. Therefore we must detail the notion of “non-fungible”.

For example, bitcoins or €100 bills are fungible. Even though each note is unique, it will have exactly the same value as another €100 note. The first mined bitcoin, no matter what platform it is on or who owns it, is the same value as a recently mined bitcoin stored in another wallet.

Conversely, works of art or concert tickets are non-fungible. Something that is not fungible cannot be replaced or divided. It’s unique. They are objects of the same nature, but which have their own characteristics and their own usefulness.

We talk about “tokens” when they are digital units, which are exchanged with blockchain technology: 3D visuals, objects in a video game, or even a piece of land in a fictional universe.

The NFT can therefore be defined as follows: it is the digital title of ownership of a non-fungible token. NFTs can be classified into different categories according to their nature and usefulness:

    • collectibles: a collection of digital objects, or a work of art for example.
    • metaverses: virtual worlds.
    • online gaming tokens.
    • utilities: they provide a service to their owner.

Some NTFs may belong to more than one category. They are traded on online marketplaces dedicated to NFTs, connected to the blockchain.

                                                                                                           The value criteria of an NFT: This young technology has a future ahead of it, but it could lead to some abuses. Many investors seek to speculate on this trend which, although it is a resounding success, is still very volatile and full of scams. The vast majority of sold works and NFT projects will never have value, simply because no one wants them.

Some NFTs have artistic value: They are works valued independently of the fact that they are digital, in the same way as a painting in a museum. The blockchain does not have a preponderant role in the evaluation of their price, it is simply the art market. Overall, price is defined by what an artist’s fan is willing to invest.

The value of an NFT can also depend on its usefulness: Becoming a member of a club, meeting other holders or the artist himself, being more powerful in a video game, acquiring and showing a certain social status, etc. .

BIBLIOGRAPHY

My name is Joel Nzoda Consultant in Digital Marketing, Junior Blockchain Developer, Junior cyber Security Consultant and Expert in blockchain technologies. I hope I have been able to bring value to each other, I remain attentive. Discover my activities on social networks.

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