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How Does One Become a Blockchain Developer?
The past decade has been an interesting time for the development of decentralized technologies. The same is true for Developer Development. Cryptonomics We've covered some of the most important technical bits. A bachelor's degree in computer science or what security is blockchain. The network is a collection of nodes that are interconnected to one another.
Job duties of a blockchain developer include setting up security measures that can help protect the organisation from cyber attacks. They also work on building infrastructure, educating sales personnel about the technology, and setting up best practices. Collaborating with other IT personnel during the design process is also part of the job. We have seen above that a core blockchain developer works on the blockchain architecture and the security of the entire system.
Some of the other responsibilities include-. Let us now take a look at the responsibilities of a blockchain software developer. The responsibilities are completely different from that of a core developer. The salary of blockchain developers varies depending on several factors such as job location, company, number of years experience, skills. On a broad scale, the salary ranges between 5,00,,00, LPA depending on the various factors mentioned above.
More Indian companies have joined the blockchain technology bandwagon. Since there is a significant gap between the number of jobs available and the number of skilled professionals in this field, now would be a great time to upskill.
The first thing you must do is learn the basic skills required and the tools used by a blockchain developer. If you understand the core concept, it becomes easier to move forward in the field. This will be very helpful when you are required to perform coding activities.
Blockchain is a fairly newer field to work in, but the opportunity to be successful is higher as well. Continue to upgrade your skills and knowledge, this will allow recruiters to know that you are the right fit for their company. Remember Me! Great Learning is an ed-tech company that offers impactful and industry-relevant programs in high-growth areas. Know More. Sign in. Log into your account. Forgot your password? Password recovery. Recover your password. C Interview Questions and Answers for Top 10 Movies on Cyber Security.
Please enter your comment! Please enter your name here. You have entered an incorrect email address! What is Artificial Intelligence? What is Machine Learning? Although cryptocurrencies don't have central banks to monitor the money supply or keep crypto companies in check, it's essential to understand the economic structures woven around them.
You'll need to understand game theory, the ideal mathematical framework for modeling scenarios in which conflicts of interest exist among involved parties. It's lucid and well explained. You also need to understand what affects currency valuation and the various monetary policies that affect cryptocurrencies. Here are some books you can refer to:. Depending on how skilled you are, you won't need to go through all those materials. But once you're done, you'll understand the fundamentals of blockchain.
Then you can dive into the good stuff. Unlike traditional judicial systems, smart contracts are enforced automatically and impartially. There are also no middlemen, so you don't need a lawyer to oversee a transaction. As smart contracts get more complex, they become harder to secure. You need to be aware of every possible way a smart contract can be executed and ensure that it does what is expected.
At the moment, not many developers can properly optimize and audit smart contracts. Decentralized applications DApps are software built on blockchains. As a blockchain developer, there are several platforms where you can build a DApp. Here are some of them:. Ethereum is Vitalik Buterin's brainchild. It went live in and is one of the most popular development platforms. Ether is the cryptocurrency that fuels the Ethereum. If you've got any experience with either, you'll pick it up easily.
It became NEO in Unlike Ethereum, it's not limited to one language. It's focused on providing platforms for future digital businesses.
Consider NEO if you have applications that will need to process lots of transactions per second. However, it works closely with the Chinese government and follows Chinese business regulations. EOS blockchain aims to be a decentralized operating system that can support industrial-scale applications. It's basically like Ethereum, but with faster transaction speeds and more scalable. Hyperledger is an open source collaborative platform that was created to develop cross-industry blockchain technologies.
Here are some courses and other resources that'll help make you an industry-ready blockchain developer. What does a blockchain developer really do?
It doesn't involve building a blockchain from scratch. Depending on the organization you work for, here are some of the categories that blockchain developers fall under. This type of developer is required to know a smart-contract language like Solidity, Python, or Go.
Their main roles include:. There's a wide base of knowledge to help you become a blockchain developer. If you're interested in joining the field, it's an opportunity for you to make a difference by pioneering the next wave of tech innovations. It pays very well and is in high demand.
There's also a wide community you can join to help you gain entry as an actual developer, including Ethereum Stack Exchange and meetup events around the world. The banking sector, the insurance industry, governments, and retail industries are some of the sectors where blockchain developers can work. If you're willing to work for it, being a blockchain developer is an excellent career choice.
Currently, the need outpaces available talent by far. A few days ago I started learning blockchain development at BitDegree. Really recommend this platform if you are a beginner just like me. What it takes to become a blockchain developer What it takes to become a blockchain developer.
Here's how to get started. Image by :. Get the highlights in your inbox every week. Technical fundamentals Although you're won't be expected to build a blockchain from scratch, you need to be skilled enough to handle the duties of blockchain development. Data structures The complexity of blockchain requires a solid understanding of data structures. Cryptography Cryptography is the foundation of blockchain; it is what makes cryptocurrencies work. Networking and distributed systems Build a good foundation in understanding how distributed ledgers work.
Cryptonomics We've covered some of the most important technical bits. Decentralized applications Decentralized applications DApps are software built on blockchains. Here are some of them: Ethereum Ethereum is Vitalik Buterin's brainchild. One thing that makes Solidity unique is that it is smart-contract oriented.
EOS EOS blockchain aims to be a decentralized operating system that can support industrial-scale applications. Hyperledger Hyperledger is an open source collaborative platform that was created to develop cross-industry blockchain technologies. Learning resources Here are some courses and other resources that'll help make you an industry-ready blockchain developer. The University of Buffalo and The State University of New York have a blockchain specialization course that also teaches smart contracts.
You can complete it in two months if you put in 10 hours per week. You'll learn about designing and implementing smart contracts and various methods for developing decentralized applications on blockchain. DApps for Beginners offers tutorials and other information to get you started on creating decentralized apps on the Ethereum blockchain. You need deep pockets for this one; it's meant for executives who want to know how blockchain can be used in their organizations.
If you're willing to commit 10 hours per week, Udacity's Blockchain Developer Nanodegree can prepare you to become an industry-ready blockchain developer in six months.
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A blockchain developer should have a great understanding of blockchainhow it works, and its architecture. What pays very well and is in high demand. Although the advent of Blockchain blockchain taken the world by storm, many people still get confused about these two terms. Of course, just attending a course alone doesn't developer you a successful What developer. Blockchain an developer is not only convenient.
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Your primary responsibility will be analyzing requirements, designing blockchain technology around a certain business model, and the building and launching of a blockchain network. As blockchain technology continues to disrupt, blockchain-related jobs are flooding the market. How can you tell whether a candidate is a genuine match? This guide provides a good base of blockchain interview questions, then helps you understand which types of blockchain professionals you'll need for your project.
Read a list of great community-driven Blockchain interview questions. Read them, comment on them, or even contribute your own. Toptal is a network of top blockchain developers, engineers, and consultants. Top companies work with Toptal blockchain engineers to launch ICOs, write smart contracts, create Dapps, and more. Coming from an Olympic background, Shota always enjoyed exciting and complex challenges.
For years, he focused on learning algorithms, understanding data structures, and solving genuinely complicated problems. He has a scientific mindset and 15 years of experience working with global startups. Levi has nearly a decade of experience in applied data science in a variety of industries with a concentration in the insurance industry.
He's passionate about solving challenging problems that others find difficult or impossible. He's comfortable working independently and collaborating on teams. He is most at home in small startups with experience in enterprise as well. Nathan is a Cloud Architect, DevOps, back end, and data engineer with over ten years of experience in top Silicon Valley companies such as Google, LinkedIn, and startups.
More recently he was the CTO of Tint. Ivan is an experienced IT professional with a unique combination of technical, consulting, and management skills. He's participated as an individual contributor Python, Java, C , consultant, architect, and manager on numerous projects of different sizes—from one-person shows to projects involving larger teams spanning globally.
Ivan is also a keen open-source developer—contributing several smaller utilities and libraries. Paul is a well-rounded full-stack developer passionate about developing quality software.
He focuses on building products and his diverse skill set allows him to tackle any challenge. His preferred front-end technology is React, while on the back-end he has experience with Spring Framework and Ruby on Rails.
Faister is an experienced developer and system analyst who now specializes in JavaScript back-end development. He is comfortable working with many languages and platforms and has recently dedicated himself to developing back-end applications using Node.
He also has some experience with blockchain technology and a master's degree in applied mathematics. With over a decade in the software industry, Tadej has helped startups launch their first product, assisted FTSE enterprises with digital transformation, been a part of the fintech boom, and helped particle accelerators cool down. He loves creating scalable back ends and is an expert in crafting modern and performant mobile, web, and desktop apps. While cost of living often inflates San Francisco wages, many of these jobs are available to remote employees.
This allows developers worldwide to command high compensation without living in San Francisco. While New York wages are often higher, just like San Francisco, many of these jobs are also available to remote workers. While this figure is somewhat lower that other major cities, other programming disciplines also earn less in this area. This is a good indication of why blockchain salaries are so high: the demand has exploded, but the supply has not. In other words, there simply aren't enough people with the right skills to satisfy the demand for blockchain talent.
Join my free training where I'll reveal how I broke into the blockchain industry as a self-taught programmer, and started charging top of market rates in a matter of months. Check out this list of awesome tutorials below. What is the average blockchain developer salary? What is the median blockchain developer salary? How much do beginner blockchain developers make?
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Blockchain Developer - Job Description and Ad Template
A natural extension of existing infrastructure controlled by incumbents, IoT applications will run the gamut from predictive maintenance of mechanical parts to data analytics, and mass-scale automated systems management. Job duties of a blockchain developer include setting up security measures that can help protect the organisation from cyber attacks. Automatically subscribe for Blockchain Consultants Updates First name developer full blockchain. He what a startup to discover talents from the open-source community. Unlike Ethereum, developer not limited to one language. The gig what hub Fivver charges 0. A few days ago I started learning blockchain development blockchain BitDegree.
The three main properties of Blockchain Technology which have helped it gain widespread acclaim are as follows:. Before Bitcoin and BitTorrent came along, we were more used to centralized services. The idea is very simple.
Another example of a centralized system is the banks. They store all your money, and the only way that you can pay someone is by going through the bank.
When you google search for something, you send a query to the server who then gets back at you with the relevant information. That is a simple client-server. Now, centralized systems have treated us well for many years, however, they have several vulnerabilities. In a decentralized system, the information is not stored by one single entity.
In fact, everyone in the network owns the information. In a decentralized network, if you wanted to interact with your friend then you can do so directly without going through a third party. That was the main ideology behind Bitcoins.
You and only you alone are in charge of your money. You can send your money to anyone you want without having to go through a bank. Why do you think that happens? The following snapshot of Ethereum transactions will show you what we mean:. This level of transparency has never existed before within a financial system.
It adds that extra, and much needed, level of accountability which is required by some of these biggest institutions. Speaking purely from the point of view of cryptocurrency , if you know the public address of one of these big companies, you can simply pop it in an explorer and look at all the transactions that they have engaged in. This forces them to be honest, something that they have never had to deal with before. However, what if the blockchain was integrated…say in their supply chain?
Immutability, in the context of the blockchain, means that once something has been entered into the blockchain, it cannot be tampered with. The reason why the blockchain gets this property is that of the cryptographic hash function. In simple terms, hashing means taking an input string of any length and giving out an output of a fixed length.
In the context of cryptocurrencies like bitcoin, the transactions are taken as input and run through a hashing algorithm Bitcoin uses SHA which gives an output of a fixed length. We are going to put in certain inputs. As you can see, in the case of SHA, no matter how big or small your input is, the output will always have a fixed bits length. This becomes critical when you are dealing with a huge amount of data and transactions.
So basically, instead of remembering the input data which could be huge, you can just remember the hash and keep track. A cryptographic hash function is a special class of hash functions that has various properties making it ideal for cryptography. There are certain properties that a cryptographic hash function needs to have in order to be considered secure.
You can read about those in detail in our guide on hashing. There is just one property that we want you to focus on today. Even if you make a small change in your input, the changes that will be reflected in the hash will be huge.
Do you see that? Even though you just changed the case of the first alphabet of the input, look at how much that has affected the output hash. What we said was:. The blockchain is a linked list that contains data and a hash pointer that points to its previous block, hence creating the chain. What is a hash pointer? A hash pointer is similar to a pointer, but instead of just containing the address of the previous block it also contains the hash of the data inside the previous block.
Imagine this for a second, a hacker attacks block 3 and tries to change the data. Because of the properties of hash functions, a slight change in data will change the hash drastically.
This means that any slight changes made in block 3, will change the hash which is stored in block 2, now that in turn will change the data and the hash of block 2 which will result in changes in block 1 and so on and so forth. This will completely change the chain, which is impossible. This is exactly how blockchains attain immutability.
The blockchain is maintained by a peer-to-peer network. The network is a collection of nodes that are interconnected to one another. Nodes are individual computers that take in input and performs a function on them and gives an output.
There is no longer one central server, now there are several distributed and decentralized peers. One of the main uses of the peer-to-peer network is file sharing, also called torrenting. If you are to use a client-server model for downloading, then it is usually extremely slow and entirely dependent on the health of the server.
Plus, as we said, it is prone to censorship. However, in a peer-to-peer system, there is no central authority, and hence if even one of the peers in the network goes out of the race, you still have more peers to download from.
Plus, it is not subject to the idealistic standards of a central system, hence it is not prone to censorship. The decentralized nature of a peer-to-peer system becomes critical as we move on to the next section. How critical? Well, the simple at least on paper idea of combining this peer-to-peer network with a payment system has completely revolutionized the finance industry by giving birth to cryptocurrency.
The peer-to-peer network structure in cryptocurrency is structured according to the consensus mechanism that they are utilizing.
For cryptocurrency like Bitcoin and Ethereum which uses a normal proof-of-work consensus mechanism Ethereum will eventually move on to Proof of Stake , all the nodes have the same privilege.
The idea is to create an egalitarian network. The nodes are not given any special privileges, however, their functions and degree of participation may differ. It is a flat topology. These decentralized cryptocurrencies are structured like that is because of a simple reason, to stay true to their philosophy. The idea is to have a currency system, where everyone is treated as an equal and there is no governing body, which can determine the value of the currency based on a whim.
This is true for both bitcoin and Ethereum. Now, if there is no central system, how would everyone in the system get to know that a certain transaction has happened? The network follows the gossip protocol. Think of how gossip spreads. The nodes nearest to her will get to know of this, and then they will tell the nodes closest to them, and then they will tell their neighbors, and this will keep on spreading out until everyone knows.
Nodes are basically your nosy, annoying relatives. So, what is a node in the context of Ethereum? A node is simply a computer that participates in the Ethereum network.
This participation can be in three ways:. However, the problem with this design is that it is not really that scalable. Which is why a lot of new generation cryptocurrencies adopt a leader-based consensus mechanism.
These cryptos are a lot faster but they are not the most decentralized of systems. Currently, finance offers the strongest use cases for the technology.
International remittances, for instance. And at the moment there is a high demand for blockchain developers. The blockchain potentially cuts out the middleman for these types of transactions. Transactions online are closely connected to the processes of identity verification. It is easy to imagine that wallet apps will transform in the coming years to include other types of identity management.
The impact of blockchain technology is genuinely far-reaching and has far more use-cases than being a facilitator for transactions. Several industries have discovered the benefits of blockchain integration. While Bitcoin and Ethereum are examples of public blockchains, most of these industries require specific functionalities out of their distributed ledger architecture. Public blockchains are open protocols.
Anyone can join the network and participate in the protocol and take care of the overall network consensus. Plus, the data stored in the blockchain is pretty much open for all to see since everything is public. Permissioned chains can also be differentiated into public permissioned and private permissioned blockchains. In a public permissioned system, anyone can join the network, but just a select few can take care of the consensus and overall networks.
Anybody can access a public ATM and use it. But, not everyone can open up the machine and add new functionalities and cash. Only the bank that owns the machine has the right to do so. Blockchains like stellar, ripple, EOS, sovrin, etc.
In EOS, anybody can join the network. However, to take part in the consensus, you will need to be elected as one of the 21 block producers and lock up some stake in the ecosystem. A private permissioned blockchain is one where members need to gain permission to enter the system and only a chosen few nodes are allowed to make administrative decisions. Think of a university. Not everyone can enter this university.
Aspirants first need to pass an entrance exam. Also, if it is an extremely prestigious university, they will need to have enough money to pay the admission fees. Not every student gets to handle the administrative side. Many companies have created consortiums using protocols like Hyperledger Fabric, which are private permissioned blockchains.
The blockchain network gives internet users the ability to create value and authenticates digital information.
What new business applications will result from this? Distributed ledger technology enable the coding of simple contracts that will execute when specified conditions are met.
Ethereum is an open-source blockchain project that was built specifically to realize this possibility. Still, in its early stages, Ethereum has the potential to leverage the usefulness of blockchains on a truly world-changing scale. For instance, a derivative could be paid out when a financial instrument meets a certain benchmark, with the use of blockchain technology and Bitcoin enabling the payout to be automated.
With Etherum being the biggest smart contract network, some top cryptocurrency exchanges like OKEx are also deploying their decentralized smart contract networks like OKEx Chain , where users can launch their decentralized applications, create token trading pairs and trade freely with no time and place restricted.
With companies like Uber and Airbnb flourishing, the sharing economy is already a proven success. Currently, however, users who want to hail a ride-sharing service have to rely on an intermediary like Uber.
By enabling peer-to-peer payments, the blockchain opens the door to direct interaction between parties — a truly decentralized sharing economy results. An early example, OpenBazaar uses the blockchain to create a peer-to-peer eBay. Download the app onto your computing device, and you can transact with OpenBazzar vendors without paying transaction fees.
Crowdfunding initiatives like Kickstarter and Gofundme are doing the advance work for the emerging peer-to-peer economy.
The popularity of these sites suggests people want to have a direct say in product development. Blockchains take this interest to the next level, potentially creating crowd-sourced venture capital funds. A subsequent hack of project funds proved that the project was launched without proper due diligence, with disastrous consequences. By making the results fully transparent and publicly accessible, distributed database technology could bring full transparency to elections or any other kind of poll taking.
Ethereum-based smart contracts help to automate the process. The app, Boardroom, enables organizational decision-making to happen on the blockchain. In practice, this means company governance becomes fully transparent and verifiable when managing digital assets, equity or information. Consumers increasingly want to know that the ethical claims companies make about their products are real.
Distributed ledgers provide an easy way to certify that the backstories of the things we buy are genuine. Transparency comes with blockchain-based timestamping of a date and location — on ethical diamonds, for instance — that corresponds to a product number. The UK-based Provenance offers supply chain auditing for a range of consumer goods.
Making use of the Ethereum blockchain, a Provenance pilot project ensures that fish sold in Sushi restaurants in Japan have been sustainably harvested by its suppliers in Indonesia. Decentralizing file storage on the internet brings clear benefits.
Distributing data throughout the network protects files from getting hacked or lost. Similar to the way a BitTorrent moves data around the internet, IPFS gets rid of the need for centralized client-server relationships i. An internet made up of completely decentralized websites has the potential to speed up file transfer and streaming times. Such an improvement is not only convenient. The crowdsourcing of predictions on event probability is proven to have a high degree of accuracy.
Averaging opinions cancels out the unexamined biases that distort judgment. Prediction markets that payout according to event outcomes are already active. The prediction market application Augur makes share offerings on the outcome of real-world events. Participants can earn money by buying into the correct prediction. The more shares purchased in the correct outcome, the higher the payout will be. With a small commitment of funds less than a dollar , anyone can ask a question, create a market based on a predicted outcome, and collect half of all transaction fees the market generates.
As is well known, digital information can be infinitely reproduced — and distributed widely thanks to the internet. This has given web users globally a goldmine of free content. However, copyright holders have not been so lucky, losing control over their intellectual property and suffering financially as a consequence.
Smart contracts can protect copyright and automate the sale of creative works online, eliminating the risk of file copying and redistribution. Mycelia uses the blockchain to create a peer-to-peer music distribution system. Founded by the UK singer-songwriter Imogen Heap, Mycelia enables musicians to sell songs directly to audiences, as well as license samples to producers and divvy up royalties to songwriters and musicians — all of these functions being automated by smart contracts.
The capacity of blockchains to issue payments in fractional cryptocurrency amounts micropayments suggests this use case for the blockchain has a strong chance of success. What is the IoT? There are also no middlemen, so you don't need a lawyer to oversee a transaction.
As smart contracts get more complex, they become harder to secure. You need to be aware of every possible way a smart contract can be executed and ensure that it does what is expected.
At the moment, not many developers can properly optimize and audit smart contracts. Decentralized applications DApps are software built on blockchains. As a blockchain developer, there are several platforms where you can build a DApp. Here are some of them:. Ethereum is Vitalik Buterin's brainchild. It went live in and is one of the most popular development platforms. Ether is the cryptocurrency that fuels the Ethereum. If you've got any experience with either, you'll pick it up easily.
It became NEO in Unlike Ethereum, it's not limited to one language. It's focused on providing platforms for future digital businesses. Consider NEO if you have applications that will need to process lots of transactions per second. However, it works closely with the Chinese government and follows Chinese business regulations. EOS blockchain aims to be a decentralized operating system that can support industrial-scale applications.
It's basically like Ethereum, but with faster transaction speeds and more scalable. Hyperledger is an open source collaborative platform that was created to develop cross-industry blockchain technologies.
Here are some courses and other resources that'll help make you an industry-ready blockchain developer. What does a blockchain developer really do? It doesn't involve building a blockchain from scratch. Depending on the organization you work for, here are some of the categories that blockchain developers fall under. This type of developer is required to know a smart-contract language like Solidity, Python, or Go.
Their main roles include:. There's a wide base of knowledge to help you become a blockchain developer. If you're interested in joining the field, it's an opportunity for you to make a difference by pioneering the next wave of tech innovations. It pays very well and is in high demand. There's also a wide community you can join to help you gain entry as an actual developer, including Ethereum Stack Exchange and meetup events around the world.
The banking sector, the insurance industry, governments, and retail industries are some of the sectors where blockchain developers can work. If you're willing to work for it, being a blockchain developer is an excellent career choice. Currently, the need outpaces available talent by far. A few days ago I started learning blockchain development at BitDegree. Really recommend this platform if you are a beginner just like me. What it takes to become a blockchain developer What it takes to become a blockchain developer.
Here's how to get started. Image by :. Get the highlights in your inbox every week. Technical fundamentals Although you're won't be expected to build a blockchain from scratch, you need to be skilled enough to handle the duties of blockchain development. Data structures The complexity of blockchain requires a solid understanding of data structures. Cryptography Cryptography is the foundation of blockchain; it is what makes cryptocurrencies work. Networking and distributed systems Build a good foundation in understanding how distributed ledgers work.
Cryptonomics We've covered some of the most important technical bits. Decentralized applications Decentralized applications DApps are software built on blockchains.
Here are some of them: Ethereum Ethereum is Vitalik Buterin's brainchild. One thing that makes Solidity unique is that it is smart-contract oriented. EOS EOS blockchain aims to be a decentralized operating system that can support industrial-scale applications.
Hyperledger Hyperledger is an open source collaborative platform that was created to develop cross-industry blockchain technologies. Learning resources Here are some courses and other resources that'll help make you an industry-ready blockchain developer. The University of Buffalo and The State University of New York have a blockchain specialization course that also teaches smart contracts. You can complete it in two months if you put in 10 hours per week.
You'll learn about designing and implementing smart contracts and various methods for developing decentralized applications on blockchain. DApps for Beginners offers tutorials and other information to get you started on creating decentralized apps on the Ethereum blockchain. You need deep pockets for this one; it's meant for executives who want to know how blockchain can be used in their organizations.
If you're willing to commit 10 hours per week, Udacity's Blockchain Developer Nanodegree can prepare you to become an industry-ready blockchain developer in six months. Before enrolling, you should have some experience in object-oriented programming. You should also have developed the frontend and backend of a web application with JavaScript.
And you're required to have used a remote API to create and consume data. You'll work with Bitcoin and Ethereum protocols to build projects for real-world applications. You can read a variety of articles about blockchain in open source on Opensource. Types of blockchain development What does a blockchain developer really do? Backend developers In this case, the developer is responsible for: Designing and developing APIs for blockchain integration Doing performance testing and deployment Gathering requirements and working side-by-side with other developers and designers to design software Providing technical support Blockchain-specific Blockchain developers and project managers fall under this category.
Their main roles include: Developing and maintaining decentralized applications Supervising and planning blockchain projects Advising companies on how to structure initial coin offerings ICOs Understanding what a company needs and creating apps that address those needs For project managers, organizing training for employees Smart-contract engineers This type of developer is required to know a smart-contract language like Solidity, Python, or Go.
Their main roles include: Auditing and developing smart contracts Meeting with users and buyers Understanding business flow and security to ensure there are no loopholes in smart contracts Doing end-to-end business process testing The state of the industry There's a wide base of knowledge to help you become a blockchain developer.