Define blockchain technology

Someone in your life is talking about cryptocurrency — maybe your partner or best friend. Either way, you want to understand this new technology that people are telling you to invest in. Below, Select dives into what makes up a cryptocurrency, and what to look for before you invest. At its most basic, a cryptocurrency is a digital asset that utilizes computer code and blockchain technology to operate somewhat on its own, without the need for a central party — be that a person, company, central bank or government — to manage the system. A blockchain is a ledger which keeps track of cryptocurrency transactions. This ledger of transactions is maintained across computers that are linked across a distributed network.



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WATCH RELATED VIDEO: What is BLOCKCHAIN? The best explanation of blockchain technology

Blockchain in Simple Terms


Blockchain is a technology that promises to fundamentally change how we share information, buy and sell things, and verify the authenticity of information we rely on every single day — from what we eat to who we say we are.

And because it can facilitate all of this in secure, efficient, and transparent ways across many different domains, the effects can be transformative — every business, government, and individual can benefit.

Blockchain can drive profound change across a range of industries and sectors, reimagining the way we do so many things.

Yet blockchain is also a complex technology, and many companies are finding it challenging to unlock its full value, given complexities around networks, data models, partner adoption, and skills gaps amongst their employees. So how can it achieve this promise, exactly?

What is blockchain technology , for a start, and how should organizations separate the reality from the hype? For many people, blockchain is a complex topic and not the easiest concept to grasp. Simply put, blockchain technology is a secure architecture that saves and traces data in a way that is distributed and verified by a network of computers. By using a blockchain…as a kind of connective tissue between different decentralized data stores, things can get really interesting.

Companies or individuals can decide to share a ledger across a public network or a private one. Public networks — as the name implies — are open to all. Here, millions of people may participate at any one point in time. Bitcoin was the first public blockchain network, and it remains one of the largest. Another example is Ethereum, a platform that can host transactions involving smart contracts.

Businesses can also choose to set up a private network, where existing users invite others to transact and interact. With both types of network, any changes to the ledger must take place through consensus — that is, records can only be altered if a majority of the ecosystem agrees that a change should be made.

Usually, networks agree upfront on a definition of what this means in practice. With most blockchain ecosystems, certain mechanisms are put in place to make it extremely hard for individual bad actors to tamper with the records. When dealing with suppliers or counterparties or clients, it can be transformative to know that paperwork, products, payments — even people — are all as they should be.

When Simon transfers funds to Sue, all the people in the network — rather than a single authority, such as a bank — must verify that this transfer or transaction actually took place. In this way, blockchain can enable stakeholders to confidently and securely share access to data and information.

Blockchain solutions use many different kinds of consensus protocol. In return, they are given rewards and incentives so they will stay involved. In public networks such as Bitcoin, these rewards come in the form of cryptocurrencies or tokens. A leading healthcare provider currently relies on electronic medical records to provide hospitals and doctors with pertinent health information about new and existing patients.

However, those records are often incomplete or missing information. With blockchain, doctors, hospitals, insurance providers, patients, and more can come together to view and update medical histories in a unified ledger.

Blockchain makes it easy for healthcare professionals to view and update those records, and for patients to get a comprehensive view of their entire medical history — resulting in a trusted, simpler, and faster process for any patient who wants to transfer between institutions. Or take the example of how a supply chain might benefit from blockchain technology.

Businesses adopting this type of solution can set up a trusted network with the partners they transact with, based on a platform that allows all stakeholders to access and manage any previously-siloed data. All transactions are transparent on such a network, and the traceability of products and goods is readily available.

Stakeholders can apply actionable processes to this data and relay any pertinent information about products and goods to their customers that is, the consumer.

This approach can help companies monitor costs, labor efficiency, and even waste and emissions at every point of the supply chain. That has big implications for enterprises seeking to reduce inefficiencies and add traceability and security into the way they manage complex supply chains. Continuous, near-real-time access to a chain of events taking place can help organizations reroute shipments on the fly, for example, and better coordinate shared manufacturing facilities, equipment, and infrastructure to optimize supply chain capacity.

The diagram below gives more detail on how transactions are recorded and validated in a blockchain database. These inefficiencies add costs through fees and delays. The situation also creates friction for teams across the business through redundant and onerous paperwork. To address these issues, Joe decides to move the company onto a blockchain-based database or shared ledger.

Now, one integrated, interoperable source of truth is available for all parties involved including any external partners. The difference is remarkable — now, every stakeholder across the business has instant access to all the data and information that pertains to any specific business process. One integrated, interoperable source of truth is available for all parties involved including any external partners.

The difference is remarkable — now, every stakeholder across the business has instant access to all the data and information pertaining to any specific business process. The point is that there are so many things you can then do without needing to get together 20 different banks, say, around a table with a bunch of lawyers before deciding that you can start a development process.

Scott Likens, New Services and Emerging Technology Leader at PwC, believes that blockchain is set to be a foundational technology for maintaining trust in the digital era. You can then do more with partners and customers and automate more of your transactions with them.

There are many indications that blockchain will significantly affect the business landscape. Here are a few current use cases:. Combining blockchain technology with customer relationship management CRM systems offers businesses a way to significantly enhance existing workflows, and build trusted partner networks that extend CRM.

Blockchain can help to extend trust, transparency, and traceability in every customer interaction, as well as break down business boundaries and data silos.

Companies benefit from the following:. Blockchain can also help companies earn loyalty in other ways. Consider how a customer loyalty program can run on a blockchain network: because the technology can connect different loyalty program schemes and make the points they distribute interoperable, customers can conveniently store all of their collected points in one digital wallet, and use it to make transactions — a frictionless process that encourages engagement.

Adopting blockchain solutions can help companies ensure their workforces become more productive over time. Already deployed by companies across the financial services sector, supply chains, and the legal profession, these software programs can be layered over the infrastructure of a shared ledger to automate and simplify business processes and arrangements.

Terms execute automatically when predefined triggers occur, without relying on expensive third parties to enforce the bargain. For example, a firm can create invoices that get paid automatically once a truck delivers a product to a distribution center or share certificates that send stockholders dividends once profits reach a certain level.

And since smart contracts on blockchain can automate mechanical tasks confirming data, enforcing contracts, processing payments, and more , employees can free up time for more interesting work. At the same time, it can automate processes, better secure its information, and reduce errors. That means employees get an improved user interface with more digitization and operations interoperability, which can significantly impact productivity. Blockchain technology — in the form of initial coin offerings ICOs — can facilitate fundraising for companies as an alternative to the traditional debt or capital funding mechanisms offered by banks, venture capital firms, and private equity firms.

Such an approach is based on tokenization. Here, digital tokens created on a blockchain network are used as an alternative way to denominate value — acting as a substitute for money, for instance. Because such tokens can be used to represent any kind of tangible asset, they can be applied to a very wide range of business processes. In the real estate sector, innovative use cases include tracking and trading tokenized pieces of a property.

In the case of ICOs, a company sells a predefined number of digital tokens to the public. Organizations have also been seeking to develop blockchain-based healthcare applications that can deliver such things as anonymized data pools for research companies, and new ways to fight counterfeit drugs. By creating a permanent, shared record of food-system data, the companies involved hope it will be much easier and quicker to trace produce from farm to store. In this way, any investigations into contaminated food can be significantly sped up, while Walmart and its partners also have more efficient ways to authenticate the origin of food and provide insights about the conditions and pathways through which the food traveled.

Such an ecosystem of transparency and accountability can help build consumer trust. Companies looking to mine its considerable strengths should first ensure they understand the business issue they want to address, and how the technology can help.

Companies do need to understand very precisely what problem they are looking to solve and whether blockchain is in fact the correct vehicle to get it done. The possibilities are endless. Learn more about Blockchain by taking our free, online learning course — Blockchain Basics — over at Trailhead.



What is Blockchain Technology and How Does It Work?

Home » Guides » Blockchain Nick Darlington. Or one where you store money in an online wallet not tied to a bank, meaning you are your own bank and have complete control over your money. This is not a world of the future; it is a world that an avid but growing number of early adopters live in right now. And these are just a few of the important blockchain technology use cases that are transforming the way we trust and exchange value. Yet, for many, blockchain technology is still a mysterious or even intimidating topic. This post demystifies blockchain technology.

Blockchain is a Distributed Ledger Technology (DLT) that was invented to support the Bitcoin cryptocurrency. Bitcoin was motivated by an extreme.

What is a blockchain?

Blockchain is the technology that underlies cryptocurrencies like bitcoin. Bankrate explains. A blockchain is a digital, public ledger that records online transactions. Blockchain is the core technology for cryptocurrencies like bitcoin. A blockchain ensures the integrity of a cryptocurrency by encrypting, validating, and permanently recording transactions. There is also the potential for credit card fraud, which costs merchants in the U. The blockchain fixes these issues. The blockchain algorithm automatically encrypts and authenticates the transaction, which is immediately visible to all users, minimizing the possibility of fraud. The terms of the transaction do not include any personal or identifying information. Blockchain technology was invented to govern bitcoin, the first and most popular cryptocurrency.


Blockchain

define blockchain technology

Close panel. Press Enter. What is bitcoin? What do the terms node, mining and hash mean? Following are the 10 key terms from the world of blockchain technology that you need to master.

Learn what blockchain is and how blockchain works.

What is Blockchain Technology?

When you think about blockchains, probably the first thing that comes to mind is Bitcoin or cryptos. But actually, the technology is extremely versatile and has potential far beyond cryptocurrencies. Blockchains have become popular over the past few years because they allow us to secure and verify all kinds of data in a decentralised network that cannot be altered. The idea has its roots as far back as , when two computer scientists, Stuart Haber and Scott Stornetta, proposed a system to protect timestamps on documents from being interfered with. Satoshi Nakamoto, the anonymous Bitcoin inventor, then built on this system and referenced the two scientists in his Bitcoin whitepaper.


What is holding back blockchain adoption and what should be done?

Blockchain is causing a paradigm shift in the way individuals, businesses and governments conduct transactions. Enabling transactions with security and trust, Blockchain has the potential to trigger widespread digital transformation and create a far more digitally-integrated global economy than what we have today. With the technology rapidly evolving and its definition shifting, most people have inadequate and inaccurate knowledge of what blockchain really is. Phase 1 in the Evoluion of Blockchain: Public Ledger. Phase 2 in the Evolution of Blockchain: Enterprise Use. Blockchain was developed in as the accounting method for Bitcoin. The inventor of this game-changing technology is anonymous, going by the pseudonym Satoshi Nakamoto. Gradually, this technology was adopted to verify and keep track of different digital currency transactions without any central recordkeeping.

Blockchain is a method of storing data in blocks that makes it difficult, if not impossible, to alter, hack or trick the system.

Think of a database with information stored in blocks. These blocks can be copied and replicated on individual computers. All of these are identical and synced with one another.


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In blockchain, decentralization refers to the transfer of control and decision-making from a centralized entity individual, organization, or group thereof to a distributed network. Decentralized networks strive to reduce the level of trust that participants must place in one another, and deter their ability to exert authority or control over one another in ways that degrade the functionality of the network. Decentralization is not a new concept. When building a technology solution, three primary network architectures are typically considered: centralized, distributed, and decentralized. While blockchain technologies often make use of decentralized networks, a blockchain application itself cannot be categorized simply as being decentralized or not. Rather, decentralization is a sliding scale and should be applied to all aspects of a blockchain application. By decentralizing the management of and access to resources in an application, greater and fairer service can be achieved.

Blockchain Technology Blockchain Technology: An introduction Blockchain Technology: An introduction The Blockchain is an encrypted, distributed database that records data, or in other words it is a digital ledger of any transactions, contracts - that needs to be independently recorded. One of the key features of Blockchain is that this digital ledger is accessible across several hundreds and thousands of computer and is not bound to be kept in a single place. Blockchain chain has already started disrupting the financial services sector, and it is this technology which underpins the digital currency- bitcoin transaction. With Blockchain technology in financial sector, the participants can interact directly and can make transactions across the internet without the interference of a third party.


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