Contentssubmitted by D-platform to u/D-platform [link] [comments]
Proof of Work (commonly abbreviated to PoW) is a mechanism for preventing double-spends. Most major cryptocurrencies use this as their consensus algorithm. That’s just what we call a method for securing the cryptocurrency’s ledger.
Proof of Work was the first consensus algorithm to surface, and, to date, remains the dominant one. It was introduced by Satoshi Nakamoto in the 2008 Bitcoin white paper, but the technology itself was conceived long before then.
Adam Back’s HashCash is an early example of a Proof of Work algorithm in the pre-cryptocurrency days. By requiring senders to perform a small amount of computing before sending an email, receivers could mitigate spam. This computation would cost virtually nothing to a legitimate sender, but quickly add up for someone sending emails en masse.
What is a double-spend?A double-spend occurs when the same funds are spent more than once. The term is used almost exclusively in the context of digital money — after all, you’d have a hard time spending the same physical cash twice. When you pay for a coffee today, you hand cash over to a cashier who probably locks it in a register. You can’t go to the coffee shop across the road and pay for another coffee with the same bill.
In digital cash schemes, there’s the possibility that you could. You’ve surely duplicated a computer file before — you just copy and paste it. You can email the same file to ten, twenty, fifty people.
Since digital money is just data, you need to prevent people from copying and spending the same units in different places. Otherwise, your currency will collapse in no time.
For a more in-depth look at double-spending, check out Double Spending Explained.
Why is Proof of Work necessary?If you’ve read our guide to blockchain technology, you’ll know that users broadcast transactions to the network. Those transactions aren’t immediately considered valid, though. That only happens when they get added to the blockchain.
The blockchain is a big database that every user can see, so they can check if funds have been spent before. Picture it like this: you and three friends have a notepad. Anytime one of you wants to make a transfer of whatever units you’re using, you write it down — Alice pays Bob five units, Bob pays Carol two units, etc.
There’s another intricacy here — each time you make a transaction, you refer to the transaction where the funds came from. So, if Bob was paying Carol with two units, the entry would actually look like the following: Bob pays Carol two units from this earlier transaction with Alice.
Now, we have a way to track the units. If Bob tries to make another transaction using the same units he just sent to Carol, everyone will know immediately. The group won’t allow the transaction to be added to the notepad.
Now, this might work well in a small group. Everyone knows each other, so they’ll probably agree on which of the friends should add transactions to the notepad. What if we want a group of 10,000 participants? The notepad idea doesn’t scale well, because nobody wants to trust a stranger to manage it.
This is where Proof of Work comes in. It ensures that users aren’t spending money that they don’t have the right to spend. By using a combination of game theory and cryptography, a PoW algorithm enables anyone to update the blockchain according to the rules of the system.
How does PoW work?Our notepad above is the blockchain. But we don’t add transactions one by one — instead, we lump them into blocks. We announce the transactions to the network, then users creating a block will include them in a candidate block. The transactions will only be considered valid once their candidate block becomes a confirmed block, meaning that it has been added to the blockchain.
Appending a block isn’t cheap, however. Proof of Work requires that a miner (the user creating the block) uses up some of their own resources for the privilege. That resource is computing power, which is used to hash the block’s data until a solution to a puzzle is found.
Hashing the block’s data means that you pass it through a hashing function to generate a block hash. The block hash works like a “fingerprint” — it’s an identity for your input data and is unique to each block.
It’s virtually impossible to reverse a block hash to get the input data. Knowing an input, however, it’s trivial for you to confirm that the hash is correct. You just have to submit the input through the function and check if the output is the same.
In Proof of Work, you must provide data whose hash matches certain conditions. But you don’t know how to get there. Your only option is to pass your data through a hash function and to check if it matches the conditions. If it doesn’t, you’ll have to change your data slightly to get a different hash. Changing even one character in your data will result in a totally different result, so there’s no way of predicting what an output might be.
As a result, if you want to create a block, you’re playing a guessing game. You typically take information on all of the transactions that you want to add and some other important data, then hash it all together. But since your dataset won’t change, you need to add a piece of information that is variable. Otherwise, you would always get the same hash as output. This variable data is what we call a nonce. It’s a number that you’ll change with every attempt, so you’re getting a different hash every time. And this is what we call mining.
Summing up, mining is the process of gathering blockchain data and hashing it along with a nonce until you find a particular hash. If you find a hash that satisfies the conditions set out by the protocol, you get the right to broadcast the new block to the network. At this point, the other participants of the network update their blockchains to include the new block.
For major cryptocurrencies today, the conditions are incredibly challenging to satisfy. The higher the hash rate on the network, the more difficult it is to find a valid hash. This is done to ensure that blocks aren’t found too quickly.
As you can imagine, trying to guess massive amounts of hashes can be costly on your computer. You’re wasting computational cycles and electricity. But the protocol will reward you with cryptocurrency if you find a valid hash.
Let’s recap what we know so far:
That’s where public-key cryptography comes in. We won’t go into depth in this article, but check out What is Public-Key Cryptography? for a comprehensive look at it. In short, we use some neat cryptographic tricks that allow any user to verify whether someone has a right to move the funds they’re attempting to spend.
When you create a transaction, you sign it. Anyone on the network can compare your signature with your public key, and check whether they match. They’ll also check if you can actually spend your funds and that the sum of your inputs is higher than the sum of your outputs (i.e., that you’re not spending more than you have).
Any block that includes an invalid transaction will be automatically rejected by the network. It’s expensive for you to even attempt to cheat. You’ll waste your own resources without any reward.
Therein lies the beauty of Proof of Work: it makes it expensive to cheat, but profitable to act honestly. Any rational miner will be seeking ROI, so they can be expected to behave in a way that guarantees revenue.
Proof of Work vs. Proof of StakeThere are many consensus algorithms, but one of the most highly-anticipated ones is Proof of Stake (PoS). The concept dates back to 2011, and has been implemented in some smaller protocols. But it has yet to see adoption in any of the big blockchains.
In Proof of Stake systems, miners are replaced with validators. There’s no mining involved and no race to guess hashes. Instead, users are randomly selected — if they’re picked, they must propose (or “forge”) a block. If the block is valid, they’ll receive a reward made up of the fees from the block’s transactions.
Not just any user can be selected, though — the protocol chooses them based on a number of factors. To be eligible, participants must lock up a stake, which is a predetermined amount of the blockchain’s native currency. The stake works like bail: just as defendants put up a large sum of money to disincentivize them from skipping trial, validators lock up a stake to disincentivize cheating. If they act dishonestly, their stake (or a portion of it) will be taken.
Proof of Stake does have some benefits over Proof of Work. The most notable one is the smaller carbon footprint — since there’s no need for high-powered mining farms in PoS, the electricity consumed is only a fraction of that consumed in PoW.
That said, it has nowhere near the track record of PoW. Although it could be perceived as wasteful, mining is the only consensus algorithm that’s proven itself at scale. In just over a decade, it has secured trillions of dollars worth of transactions. To say with certainty whether PoS can rival its security, staking needs to be properly tested in the wild.
Closing thoughtsProof of Work was the original solution to the double-spend problem and has proven to be reliable and secure. Bitcoin proved that we don’t need centralized entities to prevent the same funds from being spent twice. With clever use of cryptography, hash functions, and game theory, participants in a decentralized environment can agree on the state of a financial database.
https://preview.redd.it/giu1ssilga151.jpg?width=900&format=pjpg&auto=webp&s=41510785ccdc0d99544ec74229f62427d1c0ce3esubmitted by 58CoinExchange to u/58CoinExchange [link] [comments]
Museum has played the role of a time recorder. Talking about bitcoin, more than ten years has passed since the creation of it. Although it is uncomparable to the stock market with a hundred years of history, during the ten years, in the different stages of the development of bitcoin and blockchain have continuously poured in geeks, miners, speculators, newbies, leaving keywords such as sudden rich, myth, scam, belief, revolution, etc.
There are also many “old objects” with stories in the “Museum” of the cryptocurrency realm. On Museum Day, let ’s review the stories brought by these “old objects”.
The First Digital Currency White Paper — Bitcoin White Paper
On Oct. 31, 2008, Satoshi Nakamoto released the Bitcoin white paper — A Peer-to-Peer Electronic Cash System in the cryptographic mail group where he belongs, and Bitcoin was born since then.
A white paper is a document that explains the purpose and technology used in cryptocurrency. Usually a cryptocurrency uses the white paper to help people understand what it provides, and it is also an important information channel for investors to understand a project. Therefore, the level of the white paper affects people’s confidence towards the coin.
In a word, in the cryptocurrency and blockchain industry, the value of a white paper is equivalent to that of a standard financing speech. The white paper plays a vital role in this emerging market.
The First Public Bitcoin-Physical Transaction — Pizza
Since Satoshi Nakamoto mined the Bitcoin genesis block on January 3, 2009, Bitcoin has only been spread among the small crowd and has not realized its value.
Not until May 22, 2010, Bitcoin enthusiast “Laszlo Hanyecz” bought a pizza coupon worth $25 with 10,000 bitcoins. This is the first public bitcoin-physical transaction. Bitcoin has its price with 0.3 cents per bitcoin.
This day has also become the famous “Bitcoin Pizza Day” in Bitcoin history. Bitcoin as the imagination of the financial system has more practical significance. The tenth anniversary is coming. How will you commemorate it? Will you buy a pizza?
The First Digital Asset Exchange — Bitcoinmarket.com
After the birth of Bitcoin, in addition to mining, the only way to get Bitcoin in the early days was to conduct transactions on forums or IRC (commonly known as Internet Relay Chat). However, this method involves both long transaction time and great security risk.
In March 2010, the first digital asset exchange — Bitcoinmarket.com launched. However, due to lack of liquidity and transaction depth, it disappeared soon after its establishment, but Bitcoinmarket.com opened the era of the operation of the cryptocurrency realm exchange 1.0.
On June 9, 2011, China’s first Bitcoin exchange — Bitcoin China (BTCChina) launched. Its founder, Yang Linke, translated Bitcoin into Chinese “比特币” for the first time. In 2013, China’s bitcoin trading entered the golden age, and exchanges sprung up. China monopolized more than 90% of the world’s bitcoin transactions. Now, if the top three exchanges Binance, Huobi Global, OKEx are the Exchange 2.0, then the index exchange represented by 58COIN called the 3.0 version, leading the trend.
The First Generation of High-Performance Miner — ASIC Miner
When Satoshi Nakamoto created Bitcoin, the only way to get it is to use computers (including home computers) to mine, mainly relying on the CPU to calculate. However, as the value of digital currencies such as Bitcoin has become higher and higher, mining has become an industry with the competition is getting fiercer, accompanied by increasing difficulty of mining. Therefore, hardware performance competition starts.
In July 2012, the genius Jiang Xinyu (Internet nickname is “Friedcat”) from the junior class of the University of Science and Technology declared at the forum that he could make ASIC miners (chips). As far as mining computing power is concerned, ASICs can be tens of thousands or more higher than the same-generation CPUs and GPUs.
At the beginning of 2013, Zhang Nanqian (Pumpkin Zhang), a suspended doctoral student from the Beijing University of Aeronautics and Astronautics, developed the ASIC miner and named it “Avalon”.
In June 2013, the Friedcat’s miner USB was finally released, and it maintained 20% of the computing power of the entire network.
At the end of 2013, Wu Jihan, used the tens of millions yuan earned from Friedcat through investment, worked together with Jenke group, to develop the Antminer S1. Since then, the miner manufacturer Bitmain began to enter the stage of history.
It is no exaggeration to say that Friedcat and Zhang Nangeng have opened the domestic “mining” era.
The Birthplace of China’s Bitcoin — Garage Coffee
It is not only the “old objects” that record history, but also a place that everyone in the cryptocurrency realm aspires to.
Guo Hongcai once said, “Without no The Garage Café, there will be no cryptocurrency realm today. Since it is a very mysterious place that all waves of people from the café joint together to create today’s digital asset industry.
▲ In March 2013, American student Jake Smith successfully purchased a cup of coffee at The Garage Café with 0.131 bitcoins. This move attracted the attention of CCTV, and it conducted an interview.
Indeed, The Garage Café is the world ’s first entrepreneurial-themed coffee shop. It has been legendary since its establishment in 2011. The Garage Cafét is not only the core coordinate on China’s Bitcoin map, but also the birthplace of the Chinese cryptocurrency circle, where digital asset realm tycoons including Guo Hongcai, Zhao Dong, Li Xiaolai, Li Lin have made their ways.
The development of digital currency is only 11 years old. Through these “old objects”, we review the various stories of this wave of technology together, hoping to help you understand the development process of the digital currency field. Meanwhile, I also remind all practitioners to use history as a mirror and forge ahead.
submitted by crypt0hodl1 to PundiX [link] [comments]
We’re close to capping the first half of the year, but we assure you that Pundi X has barely scratched the surface in terms of what we can offer in 2019. A lot of works are in progress which we will announce when ready. Nonetheless, we have achieved some very promising milestones for the past few weeks, further highlighting our commitment to bringing easy payments and unparalleled crypto experience to our clients. More product enhancements, merchant activation, greater engagements, and higher security standards — these are what we have delivered last month.
Product DevelopmentXPOS certified by FCC and KC
We are proud to announce that XPOS received certifications from the Federal Communications Commission (FCC) and Korea Certification (KC), on top of the certification it has already received from CE and TRA. These certifications will certainly help build XPOS a trustworthy blockchain device as these markings indicate that from a safety and environmental protection perspective the XPOS can confidently be used by their customers.
Pundi X Open Platform is available for token listing from May 11
At the beginning of the month (1st May) we’ve launched Pundi X Open Platform that allows blockchain developers or businesses to sign up for a developer account to list their ERC20 tokens throughout XPOS, XWallet and XPASS. Not only that, now the developers have the option to create customized XPASS cards. To learn more about how to list on the Open Platform, you can read the instruction here.
NPXS buy back to incentivize quality blockchain developers to list on the Pundi X Open Platform
After announcing Pundi X Open Platform, the team has allocated the tokens from the Partnership Reserve Fund (PRF) to encourage good blockchain projects to list on Pundi X payment platform by subsidizing their initial liquidity pools. The source of PRF is the NPXS that we buy back from the open markets. On May 20, we executed NPXS buybacks equivalent to 500 ETH at around $0.00072 dollars on May 20, 2019.
This month we continue improving XWallet by adding more features and support. Here is a list of improvements we made in May:
We’ve also working hard to make XWallet app on more platform. It is now available on Samsung Galaxy Store.
You can use XWallet app for not only topping up and paying cryptos instantly with XPOS merchants across 30 countries but also sending tokens to any XWallet user in the world without fee when the receiver uses the ‘Collection’ feature. Most of XWallet users are also using staking feature from both XWallet and their own ERC20 private wallets to get FX tokens.
As of today, XWallet has more than 200,000 registered users and growing.
Merchant Adoption and XPOS partner updateDoshEx brought crypto payment to coffee shops in South Africa
Dosh Exchange is now expanding their XPOS footprint to coffee shops in South Africa. Pundians can now enjoy the best coffee in town using XPOS. XPASSes can also be bought in-store and used at the counter immediately.
iBank introduced Cao Jun XPASS card during New York Blockchain week
Limited editions of Cao Jun XPASS card powered by Pundi X and IOST have made its first appearance during a Night at BlockchainImpact event on May 15 during the blockchain week in New York. The cocktail gathered Limited Partners (LPs) and General Partners (LPs), family offices, corporate investment offices, and individuals for networking opportunities and blockchain investments. To get the limited editions of CaoJun XPASS cards, you can order them at https://www.ibankdigital.io/ibankxpass
Pundi X and BlockVibe
Thanks to BlockVibe’s cryptocurrency savvy members, Pundi’s XPOS system will now be available in more businesses in the future. This new partnershipwill not only bring cryptocurrency closer to becoming a mainstream form of payment, but will also cement Pundi X’s crucial role in helping realize this possibility.
BlockVibe has successfully held an event on the Korean American Chamber. In this event, XPOS has been introduced to the participants. In the near future, there will be more and more XPOS merchants activated by BlockVibe.
Bit2Big in Blockchain Summit Nigeria
On 24th May, the CEO of Bit2Big and blkchainafrica, Mr Kiberu Nagenda was presenting at BlockchainSummit Nigeria. Summit participants can also experience the transaction via XPOS devices.
Pundi X EventsPundi X at the BitConfBR in Sao Paulo
Pundi X Brazil team had an action-packed weekend at BitconF held from 6 to 9 May. Attendees headed to our stand and top up cryptos in their XPASS cards and XWallet, while learning more about our company and our advanced XPOS technology.
La Conexion Conference in Medellin
During 21–22 May 2019, Brazil Country Manager of Pundi X Joao Victor Mendes attended the La Conexion Conference held at Country Club Medellin, Colombia. Joao discussed the adoption of digital assets and their direct impact on the retail industry, in light of the huge potential for blockchain development in Latin America.
Keynote at Blockchain Finance Conference, APAC in Singapore
On May 8 2019, Vic Tham, CEO of Quantum Energy Asset Management and Chief Investment Officer of Pundi X Labs was a speaker at Blockchain for Finance Conference, APAC. Vic Tham has delivered keynote regarding investing in Blockchain or Fintech startups.
Bitcoin Pizza Day
On 22 May 2010, programmer Laszlo Hanyecz bought two pizzas for 10,000 bitcoins. Known as the first real-world transaction with bitcoin, this event paved the way for greater exploration into the world of crypto payments. To learn more about the history, you can read the revolution of cryptocurrency payment at CoinMarketCap.
Pundi X is grateful to be a part of this massive revolution, and of course we celebrated the day by satisfying some Bitcoin Pizza Day-induced cravings. We partnered with Papa John’s in Seoul and offered pizza discounts to anyone who used their XWallets to purchase from the store as well as hosting a 24 hour online XPOS flash sale.
XBlockchain Meetup in Seoul
The following day in Seoul, we held an XBlockchain Meetup with Function X Foundation and Dapp.com. In the meetup, we have shared the update and ongoing R&D progress, including upcoming integration with Binance Chain and new social networking service on Function X ecosystem, FX Thread (code name). XWallet users will be the first to preview and test this service before the launch of XPhone.
David Ben Kay, Chief Legal Counsel of Pundi X, has officially onboard to lead Function X Foundation. He shared the foundation vision and status of Function X development in this meetup.
InnoVEX Forum in Taipei
On May 30, I had the honor to be invited to deliver keynote about blockchain for smart payment at InnoVEX, one of Asia’s leading startup platforms in conjunction with Computex 2019 and later participated the panel led by Jason Hsu, Taiwan’s Crypto Congressman with Dominik Schiener from IOTA and Jeff McDonald from NEM Foundation.
Pundi X joins the Blockchain Collaborative Consortium in Japan
Japan-based Blockchain Collaborative Consortium (BCCC) welcomed Pundi X on 27 May, in a step for us to engage Japanese institutions and regulations and develop awareness around blockchain. According to BCCC, they promote the widespread adoption of blockchain technology, particularly through the acquisition of latest information and basic knowledge of blockchains, training of engineers and planners, formation of network willingness of practical experiments and implementation, and the implementation of blockchain related business to be widely notified to the market and the adoption of blockchain to various businesses.
The crypto space in Japan is growing at a desirable rate, and we are hopeful that Pundi X will be one of the frontliners in helping BCCC achieve its goals.
NPXS token removalhttps://preview.redd.it/xhwud1tuhv231.png?width=699&format=png&auto=webp&s=ae5b9e62f58668d382d89557da1ec0f6ef4aa30a
Pundi X team has executed the token removal as planned on May 11, 2019. A total of approximately 14.5 billion (7.59 billion of NPXS and 6.95 billion of NPXSXEM) have permanently removed from the supply. You can check the details here.
Monthly unlock token mechanism is completedThe monthly unlock tokens came to an end on May 31 as announced. The team will complete the last batch of unlock NPXS and NPXSXEM by mid June. After that, there will be no monthly unlock tokens.
For the KYC verified NPXS/NPXSXEM XWallet users, don’t forget you have the option to hold your NPXS/NPXSXEM to stake for FX tokens till March 19, 2020.
That’s all for the highlights of Pundi X Insider in May. Hope you enjoy our progress. I look forward to sharing our next update in June!
Dear NEO Health Community:submitted by Bayalumaya to NEO [link] [comments]
Firstly, I would like to thank everyone for your support since we opened the PeerAtlas Telegram last November. We are all in this together.
I will provide a brief history of PeerAtlas and NEO Health.
2011: The PeerAtlas project begins with the goal of launching a completely free library for high-quality medical information, and ultimately launch a live rolling clinical trial to collect outcome data on patients, which would prove or disprove the claims of pharmaceutical companies, becoming the most valuable medical database in the world.
2011-2016: PeerAtlas founder Brad Mattson codes an alpha version of a wiki-based medical algorithm encyclopedia while in medical school and training to become a radiologist. Development and marketing of the project is difficult during this time because the majority of Brad's time is consumed by the notoriously brutal schedule of a doctor in training…but the project continues. For those who don't know, doctors enjoy working longer hours than most for reasons that are unknown.
November 2016: Brad buys his first Bitcoin, watches the price of Bitcoin increase, and instantly becomes a crypto degenerate (AKA true believer) like several others before him. Brad watches all of his personal holdings get tied up in crypto over the next several months, and considers selling his house. In retrospect, I should have sold the house.
April 2017: Brad moves all of his crypto investments into Antshares because he reads on Reddit that Antshares has the best community and he enjoys supporting a Chinese project because his wife is Chinese. This really was all the research I did, but most people would recommend reading the whitepaper before making moves like this.
June 2017: Brad hopes to launch PeerAtlas on the platform of the future, and like any self-respecting crypto degenerate (AKA true believer), he believes the future of everything must be blockchain. Having so much respect for the strength of the Antshares community, Brad asks his wife and PeerAtlas co-founder, Ling Wu, to email Antshares founder, Da Hongfei. Da replies and talks to launch an ICO on Antshares begin.
July 2017: Antshares rebrands to NEO. PeerAtlas co-founder Colin Closser completes the first draft of the PeerAtlas whitepaper.
Early November 2017: The PeerAtlas team (Brad Mattson, Ling Wu, and Colin Closser) visits NEO headquarters in Shanghai and plans the launch of the PeerAtlas ICO.
Mid November 2017: The PeerAtlas Telegram is opened.
Late November 2017: Cryptocurrency markets and altcoins begin their climb to new all-time highs.
December 2017: The PeerAtlas project is presented at the NEO meetup in New York City. Cryptocurrency markets are out of control. The PeerAtlas Telegram begins daily quizzes with gas awards for first 10 winners. The quizzes take place for almost 5 months, with special thanks to Vivek, Raj, Melicio and several other members of the community for making this possible.
PeerAtlas co-founder Ling Wu with NEO founder Da Hongfei at the NEO meetup in New York City
Early January 2018: The PeerAtlas ICO page goes live. Cryptocurrency markets remain out of control. The SEC sets a date for early February to discuss ICOs, security tokens, and utility tokens. Obviously this means bad news for US-based ICOs.
Late January 2018: The PeerAtlas project is presented at the first-ever NEO DevCon in San Francisco.
February 2018: The SEC declares that all utility tokens are in fact security tokens. The PeerAtlas team consults dozens of lawyers for advice regarding the launch of a US-based ICO, and we get a different answer from every lawyer because nobody has any idea what's going on. PeerAtlas suspends plans to launch an ICO from the US against the advice of several lawyers who claim the SEC doesn't have the resources to investigate every single ICO. As it turns out, the SEC does have the resources to do this, and we watched several projects get shut down by the SEC.
March 2018: Cryptocurrency markets are not looking so great. The PeerAtlas team researches launching the project from a crypto-friendly country outside of the US. Research leads to Gibraltar, Liechtenstein, Malta, and Switzerland as possible options.
April 2018: Cryptocurrency markets are looking worse. The word on the streets is that Binance, the world's largest exchange, will be moving to Malta and the PeerAtlas team decides that wherever Binance is going is probably also where we should go. Legal negotiations begin in Malta and PeerAtlas officially becomes a Malta-based company.
Late April 2018: Cryptocurrency markets are still taking a dive, but PeerAtlas moves forward with plans to launch the token sale in May.
Early May 2018: Cryptocurrency markets still look terrible but are beginning to become more stable. PeerAtlas launches the presale on May 1st. Three days after the presale is launched Brad is contacted by iScientia (www.iscientia.com) founders Koen Vanneste and Laurent David to form a partnership. Brad recognizes that iScientia is a European leader in medical information and clinical decision support for almost 20 years with endorsements from the most well-respected medical journals and libraries, and accepts the partnership.
Mid May 2018: The PeerAtlas token sale is suspended while the goals of the project are updated after the partnership with iScientia. The project takes on a new direction with a drastically more ambitious scope.
June 2018: PeerAtlas and iScientia merge to form NEO Health, and begin building a completely web-based electronic medical record to integrate with the iScientia clinical decision support tool and digital health library which is currently operating in several European countries.
July 2018: Brad suspends his career as a radiologist and moves to Belgium to work on the project full time with iScientia.
In what will go down as one of the most interesting experiences of my life, I traveled to Milan, Italy with iScientia co-founders Koen Vanneste and Laurent David where we had arranged a meeting with “investors”. We were asked to meet the “investors” in a coffee shop/bookstore outside of Milan. We waited in the bookstore for around 45 minutes before the “investors” finally showed up, one dressed normally and the other dressed in a full Giorgio Armani suit. The one dressed normally was carrying a large black bag. They treated us to a cup of coffee and discussed investing into our presale. They suggested that we take 2 million euro in cash from them and put it in the trunk of a rented car and drive it across several country borders back to Belgium, and then call it their investment in our project LOL. They asked if we could meet again the next day in an undisclosed location to finalize the deal, and asked us to bring a money counter with us the next time we meet. Does it look like I just fly in from New York and I'm carrying a money counter in my backpack? If I ever need to use a money counter for anything I'm going to get one of those green banker visors to go with it.
The next day the location of the meeting changed five times before we finally agreed to meet at a very shady restaurant like something you would see in a Martin Scorsese film. At this point I figured this must be someone's idea of a practical joke. They bought us a pretty nice dinner which was definitely appreciated, but we did not have a money counter and no money exchanged hands. I explained that we were thankful for their offer, but we simply cannot accept 2 million euro in cash, put it in the trunk of a rented car, and drive it back to Belgium LOL. The story actually gets more crazy, but to protect people's privacy and make sure we don't end up getting shot, I'm not going to go into more detail. For the record, NO CASH WAS ACCEPTED FROM ANYONE.
Over the past two weeks we have been quite busy beginning development of a completely web-based electronic medical record which we will integrate with the digital health library and clinical decision support tool from iScientia to provide doctors with clinical decision support at the point of care through the NEO Health EMR. We are also finishing the new whitepaper and building an ICO page.
NEO Health headquarters in Belgium, at the European Center for Implementation of Evidence-Based Guidelines
In addition, we met with Nigerian government officials and are hoping to deploy our software in Nigeria if we can come to an agreement. Nigeria would be an ideal place to launch NEO Health because there is less barrier to entry than in the United States or Europe where there are endless healthcare regulations and patient privacy laws. We feel the quality and access to healthcare in Nigeria would improve tremendously if doctors were using a modern electronic medical record system as opposed to paper charting which is currently the most common form of charting in Nigeria. We will also speak with select hospitals in China which will serve as test sites for NEO Health, before expanding further into China.
Thank you sincerely to the NEO Health community for your support! I will keep you updated with a weekly, or at most a bi-weekly newsletter.
Brad Mattson MD
Founder of NEO Health
submitted by GTE_IO to u/GTE_IO [link] [comments]
News by Cointelegraph: Jinia Shawdagor
Earlier on, when Bitcoin (BTC) arrived on the scene, most cryptocurrency enthusiasts held on to their coins, as there were only so many places they could be spent. Nowadays, the list of marketplaces and retailers accepting Bitcoin and other cryptocurrencies is significantly larger, providing crypto enthusiasts with more options for making real-world purchases.
After all, with recognizable organizations like Microsoft and Wikipedia now accepting Bitcoin as payment, conversations about Bitcoin and the power of cryptocurrencies are becoming more prominent.
Currently, several fast-food restaurants and coffee shops have started accepting Bitcoin as payment. This will likely provide traction for mass adoption as cryptocurrency payments become increasingly commonplace in day-to-day purchases.
Granted, there are some jurisdictions that do not consider Bitcoin or any other cryptocurrency as legal tender. Despite this set back, even big tech companies like Facebook are coming up with payment systems that mimic cryptocurrencies.
Here are some of the leading retailers, merchants and companies that will let you book flights and hotels, buy coffee or pizza, or even go to space with crypto.
Pay for a burger in Germany with cryptoThe German branch of fast-food restaurant chain Burger King now claims to accept Bitcoin as payment for its online orders and deliveries, but this is not the first time Burger King has warmed up to Bitcoin as a form of payment.
The company, headquartered in Florida in the United States, had its Russian branch announce in 2017 that it would start accepting Bitcoin payments, but it ultimately did not take off. The global fast-food retailer reports an annual revenue of about $20 billion and serves about 11 million customers around the world. If all its outlets move to accept Bitcoin as payment, cryptocurrency adoption would inevitably spread.
Spend crypto at Starbucks and other placesFor crypto payments to gain traction, merchants need to implement systems that enable swift and easy cryptocurrency spending. Starbucks is one of the companies taking advantage of this concept through Flexa, a U.S.-based payment startup that is helping the cafe giant, as well as dozens of other companies, accept cryptocurrency payments.
The company developed an app called Spedn that enables crypto holders to make purchases with merchants like Starbucks. The company’s CEO believes that by making cryptocurrencies spendable in the mainstream, commerce will realize the full benefit of blockchain technology all over the world.
Crypto enthusiasts in Silicon Valley’s Palo Alto might already be familiar with Coupa Cafe for other reasons apart from its coffee and food. Through its partnership with a Facebook software developer, Coupa Cafe has been accepting Bitcoin as payment since 2013.
Reports show that the cafe received a steady stream of Bitcoin revenue as soon as they started implementing crypto payments — a clear sign of how eager its customers were to pay in Bitcoin. Coupa Cafe is among the few physical businesses in Palo Alto that accept Bitcoin at the moment. The cafe owners believe that their collaboration with the Facebook software engineer will create more traction in terms of Bitcoin adoption.
Buy food with cryptoWith over 50,000 takeaway restaurants listed on its United Kingdom-based site, OrderTakeaways is one of the surest ways to get a pizza paid for with crypto delivered to your doorstep. The company has been accepting Bitcoin payments for online takeout orders since 2018. And other similar services include the Korean platform Shuttledelivery as well as German-based service Lieferando and its subsidiaries in several other countries.
Apart from online orders, crypto can also be spent at a regular Subway restaurants. As early as 2013, several Subway branches started accepting Bitcoin as payment. Now, for a fraction of a Bitcoin, a Subway sandwich can be purchased at select restaurants.
Pay with Bitcoin to tour spaceBesides buying food and inexpensive, day-to-day items with crypto, a trip to space can now be bought with Bitcoin. That’s right. Richard Branson’s space tourism company, Virgin Galactic, started accepting Bitcoin as payment as far back as 2013. Although Branson’s predicted date for the first commercial flight has been pushed back several times, the company achieved its first suborbital space flight last year. Perhaps soon, people will be able to tour the moon on crypto’s dime.
Buy jewelry with BitcoinA brick-and-mortar American jewelry company called Reeds Jewelers accepts Bitcoin for both its physical and online stores. What’s more, if a purchase is worth more than $25,000, the company provides free armored delivery for safety. Other jewelry companies accepting Bitcoin include Blue Nile Jewelry, Stephen Silver Fine Jewelry and Coaex Jewelry, to name a few.
A big advantage of purchasing large ticket items — like a diamond — with crypto is that it makes moving around large amounts of money cheap and effortless. Reports show that more Silicon Valley investors are buying jewelry with Bitcoin. Last year, Stephen Silver Fine Jewelry reported a 20% growth in crypto transactions, leading to a boost in the company’s sales. The company has been accepting Bitcoin since 2014.
Send and redeem gift cards with BitcoinGyft, a digital platform that allows users to buy, send and redeem gift cards, was one of the first merchants enabling cryptocurrency adoption to gain traction in the real world. The mobile gift card app allows Bitcoin to be used to purchase gift cards from several retailers, some of which include Burger King, Subway, Amazon and Starbucks. The company has also partnered with popular crypto exchange Coinbase to enable users to buy gift cards from their Coinbase wallets.
Travel and pay in BitcoinIf a traveler only has Bitcoin at their disposal, the following merchants will gladly offer services in exchange for it. TravelbyBit, a flight and hotel booking service, accepts cryptocurrencies like Bitcoin, Binance Coin and Litecoin (LTC) as payment.
With a network of over 300 crypto-friendly merchants, the platform is one of the biggest supporters of crypto adoption. TravelbyBit can also alert you to upcoming blockchain events in order to interact with other crypto enthusiasts from around the globe. Other platforms to book flights with crypto include Destinia, CheapBizClass, CheapAir, AirBaltic, Bitcoin.Travel and ABitSky, among others.
Use crypto to book a five-star hotel in ZurichIf ever one finds themselves traveling to Zurich Switzerland, either BTC or Ether (ETH) can be used to pay for a stay in a five-star hotel in Zurich. In May 2019, five-star hotel and spa Dodler Grand announced that it will start accepting Bitcoin and Ether as payment.
The hotel has partnered with a fintech firm Inacta as well as Bity (a Swiss-based crypto exchange) to facilitate the payment and conversion of crypto to fiat money. The hotel boasts an amazing view of the Swiss landscape among other enticing amenities that come with a five-star hotel.
Pay for electronics and more with cryptoFor all the gadget lovers, there are a bunch of platforms that allow electronic purchases with cryptocurrency. Newegg, for instance, is an electronic retail giant that uses BitPay to process payments made with digital currencies. Even though one cannot get refunds for Bitcoin purchases, Newegg has a good reputation for quality items.
Plus, the company boasts its being among the first merchants to support cryptocurrency adoption. Other platforms for gadget junkies include Eyeboot (a platform that sells crypto mining rigs in exchange for crypto), Microsoft, FastTech and Alza (a U.K.-based online store that sells phones and beauty products).
An ever-expanding listIt seems clear that more retailers are warming up to the idea of accepting cryptocurrencies. There is still a long way to go before full adoption can be achieved, but many companies have nevertheless benefited from being early adopters. Despite the volatile price movements of cryptocurrencies, all evidence points to a future cashless society that uses digital currencies, and crypto is leading the way.
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We have been pushing and expanding our footprint globally and it wouldn’t have been possible without our community’s strong support, so we like to say thank you to each of you.
Last month, our distribution partners launched a limited edition of the XPASS card and extended the reach of our blockchain technology to South Africa. The XPOS became the first blockchain device to receive the CE and TRA certification which will play a crucial part in a number of initiatives which we are rolling out. For more details of activities and progress in April, read on.
New XPOS merchant highlights and distribution partnershipsTorosushi — the Netherlands
Now you can spend crypto at a sushi store in the Netherland. Torosushi has brought the XPOS to Almere, where customers can purchase their fresh sushi favorites with Bitcoin (BTC), Ethereum (ETH), Binance coin (BNB), and Pundi X token (NPXS).
More newsstands have XPOS — Brazil
In São Paulo, XPOS is fast becoming a common sight as they are being deployed in more places in our effort to make crypto truly more accessible in people’s everyday lives. Next time when you are in São Paulo, don’t forget to use your BTC, ETH, BNB, and NPXS with these XPOS newsstand merchants.
Jackscoot — France
Jackscoot, a motobike repair shop in Paris, has installed an XPOS to accept crypto payments and enable topping up of BTC, ETH, BNB, and NPXS for their customers.
iBank XPASS — Canada
Bank Digital, a Canadian-based crypto trading platform and XPOS distributor, has issued a limited edition iBank XPASS with designs based on the paintings of the well-known artist Cao Jun — “Purple Pavilion and Cyan Cloud,” “Once in a Millennium,” and “Spring’s News”. These custom-designed iBank XPASSes will be available during the Consensus Week 2019 in New York.
The limited edition iBank XPASS is made possible with the help of iBank Digital, IOST block and Art Impact Foundation through an exclusive collaboration with world-renowned artist Cao Jun. You can pre-order the cards at https://www.ibankdigital.io/ibankxpass
DoshEX — South Africa
DoshEX, a digital asset exchange in South Africa, will begin pushing digital transformation through Pundi X technology. A phased roll-out of the XPOS and XPASS cards will be undertaken, with 5,000 cards available for the first wave of early adopters.
DoshEX CEO Alex de Bruyn noted, “It was essential to roll out trusted and proven technology as our objective is to rapidly build South Africa’s first point-of-sale cryptocurrency network. This is why we have partnered with Pundi X. We believe XPOS will rapidly become your crypto ATM and transaction-enabler at your local coffee shop or high street store.”
Product DevelopmentXPOS is the world first blockchain point of sale smart device to receive CE and TRA certification
It is important for blockchain solutions to keep up with the fast pace of technology, but it is even more important for these solutions to be compliant with global health, safety, and environmental protection standards. April saw the first ever blockchain-based point-of-sales (POS) smart device to receive Conformité Européenne (CE) certification in the European Union after Pundi X met all the requirements and standards laid out by the European Economic Area (EEA). In addition, XPOS also received UAE TRA certification through ebooc, our partner in Dubai, to ensure that the rollout of Pundi X technology across the Emirates is in full compliance.
XWallet updated with FX conversion and an added 2FA feature
To further assist token holders who are taking part in the NPXS and NPXSXEM conversion, the team has added a new feature in the XWallet app to facilitate the process. After introducing the FX staking mechanism in March, in order to ensure a fairer distribution and allow more people to participate in the conversion, the conversion mechanism has also been updated. The first-come, first-served component is deactivated during the first 20 seconds of each daily conversion period.
Another feature added to the XWallet in April is Google Authenticator (GA) which is to achieve maximum security for XWallet accounts. In addition to SMS and Email verification codes, this is an additional two-step verification process to protect your account’s safety by using the One-time Password Algorithm within 30 seconds. The GA code can be used in the login, transfer and change login password options to achieve greater security for your XWallet accounts. To activate the GA verification service, you can follow the steps here.
Events and CommunityWorld Blockchain Summit in Taipei
Pundi X Chief Legal Counsel David Ben Kay went to the World Blockchain Summit held in New Taipei City on April 25 and 26, 2019. He delivered a keynote on how traditional businesses can benefit from digitizing and modernizing payments using blockchain technology. David also participated in a panel discussion with Dimitrios Psarrakis from the European Parliament and Jason Hsu, Taiwan’s Crypto Congressman to talk about the state of regulations and compliance for blockchain startups.
Ask Me Anything (AMA)
In April, Pundi X CEO and Co-Founder Zac Cheah hosted an AMA session to share the company’s progress in Q1 and the outlook for Q2. Zach shared several highlights and responded to detailed questions which can be found on https://medium.com/pundix/recap-of-ama-with-zac-on-apr-12-b949270292bc. Zac also announced the token removal schedule for 2019.
2019 Token Removal Schedule
João Victor Mendes, Pundi X’s LATAM Country Manager, was invited to the telegram AMA session hosted by Binance on April 4 to talk about our development in LATAM markets. He also delivered a keynote about Pundi X and the impact of blockchain technology in retail at Talent Land, the largest tech startup event in Mexico. João also organized an XBlockchain talk at the Universidade Federal de Santa Catarina.
NPXS listed on Kucoin and iBank Digital
This month also see NPXS traded in more crypto exchanges. NPXS/BTC and NPXS/ETH trading pairs are available on KuCoin and iBank Digital!
April 1st giveaways
Finally, we’d like to give a shout out to all the Pundians who joined in our April Fool’s Day Pranks. We gave away 10 XFANS to the 10 users with the best tweets in response to the question, “Why do you want an XFAN?” We initially allocated only five (5) XFANS for the event, but due to the overwhelming response, we increased the prize to 10 units so more people could enjoy the breeze in the upcoming summer.
This is only a glimpse of what happened in April. To catch up with all our latest activities, you can follow our official Pundi X Twitter here.
Have you ever heard a story, About Mrs. Feelesspaymentsglory?
|Web page||White Paper||Team|
The world will start taking crypto seriously if there will be a real use for that...like “Let's use it as a money”! (JD)
Someone sings to Shingo drone, Someone hails from Jayson’s throne.
Someone in hoard with shiny might, Someone is alone, in the endless night.
Someone tried to get that throne, He shall be doomed with crown of thorns.
Future will show, who will bow, Who shall be victorious in Titan's brawl.
Bitcoin's volatile history in pictures The first bitcoin ATM appears. On 29 October, 2013, the first ever bitcoin ATM was installed in a coffee shop in Vancouver, Canada. The machine allowed ... When you walk into any coffee shop you have a good idea of how much that coffee will cost. Not only that, but you know that when you walk back into that same coffee shop tomorrow or next week, its price won’t change. That’s because the fiat currency used to price the coffee is relatively stable, and doesn’t fluctuate much on a regular basis. If, for instance, the underlying currency ... Baidu - the Chinese search engine giant - was for a period accepting Bitcoin for its website security service offerings. In fact, in 2014 Bitcoin traded more against the Chinese yuan than any other currency. This buzz of activity attracted miners, who set up shop in areas with cheap energy. Bitcoin for Coffee Currently, it's possible to buy Starbucks coffee with Bitcoin, but it isn't an easy process. The global coffee giant in the past teamed up with Square, which accepts Bitcoin. However, it isn't as easy as whipping out your iPhone and paying with the Starbucks app or even your debit card. But will that be changing soon? According to Bloomberg, the beverage retailer has just ... Source: corporate.egifter.com. Shopify (Shopify stores) You may be familiar with Shopify, a world-renowned e-commerce platform that allows merchants to set up their own online shops and sell goods in a similar way to Amazon, eBay, and other online giants.In 2013, all Shopify merchants received the option to accept Bitcoin payments with the help of a service called BitPay. Currently, Cyclebit works with businesses in Europe and South Korea. However, as of October 16th, the crypto startup has announced that Nostrum, a chain of coffee shops in Spain, will be using its technology to start accepting and selling Bitcoin now. Nostrum is planning on making this the case for all of their 130 coffee shop locations in Spain. Customers can now spend bitcoin at Starbucks, Nordstrom and Whole Foods thanks to a partership with Flexa and support from Gemini's Tyler and Cameron Winklevoss. As Starbucks shops are preparing for the integration of Bakkt, the famous coffee shop’s customers will have the opportunity to pay for their favorite coffee with bitcoin (BTC); however, tax returns might represent a serious problem to the functionality of the crypto-based payment system.. The point of mass adoption in terms of accepting cryptocurrencies as alternative payment methods across ... Average Bitcoin Transaction Fee (in USD) That might seem insignificant for transactions moving thousands of dollars worth of Bitcoin, but for smaller payments, it’s not sustainable. Who wants to pay for a $3 coffee with a $5 fee attached? With the Lightning Network, you still pay two fees – one to open your channel, and another to close it ... O acesso a redes Wi-Fi públicas e gratuitas se espalhou com muita velocidade e está disponível em vários locais. Onde você imaginar, pode existir uma rede desse tipo, aeroportos, hotéis e shoppings, todos concedem essa conexão gratuita à Internet como um benefício adicional do uso de seus serviços.
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