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Using Blockchain To Store Information

How Blockchain Can Be Used To Secure Sensitive Data Storage

How Blockchain Can Be Used To Secure Sensitive Data Storage

How Blockchain can be Used to Secure Sensitive Data Storage Which service would you turn your attention to, when deciding on making a transaction? A pretty large number of options can be open at all times for you to make use of. Depending on your resources and preferences, you may refer to traditional banking services and make physical money transactions or employ digital services that provide cryptocurrency exchange and transfer. No matter, what kind of technology you opt for, providing information about your financial activities online will still expose your personal details and money to increased risks of fraud and interception. According to the report presented by ACI Universal Payments, 30% of cardholders have experienced card fraud over the past few years. It is no great surprise that businesses and customers are striving to hit upon a solution, which will heavily impact the way financial transactions made and eliminate the risk of sensitive data theft. Blockchain technology is considered a genuine breakthrough in the financial services industry today. It allows making direct transactions between two parties, not involving any centralized intermediary. uriously enough, the leading banks are now looking into integration of blockchain technology into their financial activity to track all transactions and make them secure. Some financial institutions, which have introduced blockchain so far, can now brag of the lowest fraud risk and secure customer transactions. What is blockchain after all? Simply put, it is a digital registration book, which keeps track of all exchanges ever made, including money, goods or property. Basically, blockchain technology serves for storing any sensitive information, which is to remain unalterable and transparent. The main blockchain pri Continue reading >>

Storage - How Can I Store Data In Ethereum Blockchain - Ethereum Stack Exchange

Storage - How Can I Store Data In Ethereum Blockchain - Ethereum Stack Exchange

How can I store data in ethereum blockchain I want to store pdf hash in blockchainI already read this post What are some proposed ways of storing data in Ethereum? But I'm beginner in this domain and I don't understand... Is it possible to store data (hash in my case) in Ethereum? How many cost to store data in Ethereum? And how can I do this with python or an other language? In a special place on the blockchain reserved for contract data In a special place on the blockchain reserved for transaction input data To store your data in a special place 1 you'll need to create a contract and deploy it on the blockchain. To store your data in a special place 2 you'll need to send someone a transaction and include your data in it. Before you you can interact with the blockchain you will need to get access to the web3 object. There are multiple ways of doing so. I'd suggest you installing MetaMask plugin for Chrome browser. After you install it, you will have access to web3 object. The ways of interacting with web3 object can be found here (web3 api documentation) Now that you've installed MetaMask plugin. Choose Morden testnet in the configs. Now you can use solidity browser compiler . Try to compile and deploy a simple contract there: You will need some ether in your account(MetaMask provided account) to deploy contracts. Go to and get 5 testnet ether for free. And after I install web3, could I store data in a special place 1? wxcvbn Aug 9 '16 at 12:15 @wxcvbn, I updated my response, check it out, feel free to ask Eugene Epifanov Aug 9 '16 at 12:26 Thank a lot for your answer! Can I insert several hash in one contract? Or is it possible to open an existing contract and add a hash? I need some ether for each contract created or for each data insert in contract? wxcvbn Aug 9 '1 Continue reading >>

Faq - Recordskeeper, Blockchain-based Record Keeping Solution

Faq - Recordskeeper, Blockchain-based Record Keeping Solution

RecordsKeeper is a Open Public Mineable Blockchain for RecordKeeping & Data Security. It can also be seen as an open source platform for private Blockchains, which offers a rich set of features including extensive configurability, rapid deployment, permissions management, native assets and data streams. You can publish your data in key-value pair format onto the RecordsKeeper Blockchain. Is RecordsKeeper a Storage, Database or Blockchain? RecordsKeeper is a key-value pair based database running on Blockchain. It stores every record as a key-value pair as a part of XRK transaction. In another way you can consider it an amalgamation of all the three (Storage, Database & Blockchain) as it offers storage as a Database over the public Blockchain. How RecordsKeeper is different from traditional storage? Since RecordsKeeper is Public Blockchain it consist of several decentralized nodes (aka Servers) which verify each and every transaction while adding a new Block into the Blockchain. Each node participates in administration: all nodes verify new additions to the blockchain, and are capable of entering new data into the RecordsKeeper. Traditional Database allows the modification of data but with RecordsKeeper Blockchain the data is secured and cannot be tampered, altered or modified once published & confirmed in the RecordsKeeper Blockchain Ledger. How RecordsKeeper is different from Storj, Filecoin and Siacoin? RecordsKeeper is based on simple mechanism to utilize the transaction size to store your data as compared to other 3rd parties which uses rental of Hard Drives of other users to create a network of storage. RecordsKeeper Blockchain is based on Key-Value pairs and reduce the overhead to get space from other parties. RecordsKeeper allows the user to upload data (in key-v Continue reading >>

How Can Blockchain Be Used As A Database To Store Data?

How Can Blockchain Be Used As A Database To Store Data?

How can blockchain be used as a database to store data? Currently decentralized blockchain applications have few options to store data. Decentralized storage options are: Decentralized cloud file storages, such as Storj, Sia, Ethereum Swarm, etc. Distributed Databases, such as Apache Cassandra, Rethink DB, etc. Storing everything in blockchain itself: Storing everything in blockchain is the simplest solution. Currently most of the simple decentralized applications work exactly this way. However, this approach has significant drawbacks. First of all transactions to blockchain are slow to confirm. It may seem to be fast for money transfer (anyone can wait a minute), but it is extremely slow for a rich application data flow. Rich application may require many thousands transactions per second. Secondly, it is immutable. The immutability is the strength of blockchain that gives it high robustness but it is a weakness for a data storage. User may change their profile or replace their photo, still all the previous data will sit in blockchain forever and can be seen by anyone. The immutability results in one more drawback - the capacity. If all the applications would keep their data in blockchain, the blockchain size will grow rapidly, exceeding publicly available hard drive capacity. Full nodes can require special hardware. It may result in dangerous centralization of blockchain. Thats why storing data in blockchain only is not a good option for a rich decentralized application. Peer to peer file system, such as InterPlanetary File System. IPFS allows to share files on client computers and unites them in the global file system. The technology is based on BitTorrent protocol and Distributed Hash Table. There are several good moments. It is really peer to peer - to share anythi Continue reading >>

Storing Data On Blockchain

Storing Data On Blockchain

I am working on a POC where I have to store some data e.g. ID of an object, price, owner and things like that. Is it possible to store such things on Blockchain using smart contracts. And if not what are the ways to use Blockchain to achieve it. (I did some research, and people are using Blockchain in SCM industry. They must have stored these kind of datas). Consider following tutorial from Hyperledger Fabric " Getting Started " pages. Basically you implement requested logic on by leveraging chaincodes , you will have to implement following golang interface: // Chaincode interface must be implemented by all chaincodes. The fabric runs// the transactions by calling these functions as specified.type Chaincode interface { // Init is called during Instantiate transaction after the chaincode container // has been established for the first time, allowing the chaincode to // initialize its internal data Init(stub ChaincodeStubInterface) pb.Response // Invoke is called to update or query the ledger in a proposal transaction. // Updated state variables are not committed to the ledger until the // transaction is committed. Invoke(stub ChaincodeStubInterface) pb.Response} type myStoreChaincode struct {}func (cc *myStoreChaincode) Init(stub ChaincodeStubInterface) pb.Response { return shim.Success(nil)}func (cc *myStoreChaincode) Invoke(stub ChaincodeStubInterface) pb.Response { action, params = stub.GetFunctionAndParameters() if action == "storeItem" { cc.StoreItem(stub, params) } // Handle here other cases and possible parameters combinations return shim.Success(nil)}func (cc *myStoreChaincode) StoreItem(stub ChaincodeStubInterface, params []string) { // Store item on ledger, where params[0] is a key and params[1] actual value stub.PutState(params[0], params[1])} This is only a Continue reading >>

Blockchain Or Relational Database? How To Choose The Right Technology For Your Application

Blockchain Or Relational Database? How To Choose The Right Technology For Your Application

Blockchain vs. relational database: Which is right for your application? Suppose you've decided thatyou want to use blockchaindistributed databasetechnology in your business rather than a relational database. For what project or applicationwould you be considering its use? Because the term blockchain is not clearly defined , you couldargue that almost any IT project could be described as using ablockchain. But assuming thatyou'renot trying to bend the truth too much, you probablyhave an application that can make use of a distributed database tostore information that will support some critical business process,and updates to that database must be cryptographically protected against tampering. The blockchain that theBitcoindigital currency uses is designed foruseby a group of non-trusting parties,and requires no central administration. Those may be reasonable design goals if you need a method for transferringvalue peer-to-peer in a way that cannot be shut down by the efforts of one or more governments. But it'slessreasonable for a database that supports critical business processes. Because the requirements for the database that supports the operation of Bitcoin are probably very different from the requirements for a database that supports a typical business process, asolution that works well for Bitcoin may not be the best solution in other cases. So in what areas is a Bitcoin-like blockchain clearly better that just using a relational database? Does blockchain'sdisintermediation matter? The goal of disintermediating any third-parties may be a good one for a cryptocurrency,particularly if you are worried about avoiding interference from government agencies,butthat's not necessarilya good goal for enterprise software. The potential cost savings from using blockchainsderiv Continue reading >>

Using Blockchain To Improve Data Management In The Public Sector

Using Blockchain To Improve Data Management In The Public Sector

Using blockchain to improve data management in the public sector By Steve Cheng, Matthias Daub, Axel Domeyer, and Martin Lundqvist Using blockchain to improve data management in the public sector Its not just for financial institutions; government agencies can use this digital ledger technology to protect trusted records and simplify interactions with citizens. An important function of government is to maintain trusted information about individuals, organizations, assets, and activities. Local, regional, and national agencies are charged with maintaining records that include, for instance, birth and death dates or information about marital status, business licensing, property transfers, or criminal activity. Managing and using these data can be complicated, even for advanced governments. Some records exist only in paper form, and if changes need to be made in official registries, citizens often must appear in person to do so. Individual agencies tend to build their own silos of data and information-management protocols, which preclude other parts of the government from using them. And, of course, these data must be protected against unauthorized access or manipulation, with no room for error. Stay current on your favorite topics Subscribe Blockchain technology could simplify the management of trusted information, making it easier for government agencies to access and use critical public-sector data while maintaining the security of this information. A blockchain is an encoded digital ledger that is stored on multiple computers in a public or private network. It comprises data records, or blocks. Once these blocks are collected in a chain, they cannot be changed or deleted by a single actor; instead, they are verified and managed using automation and shared governance p Continue reading >>

Forever Isnt Free: The Cost Of Storage On A Blockchain Database

Forever Isnt Free: The Cost Of Storage On A Blockchain Database

Internet Policy Intern at IPDB Foundation. Forever Isnt Free: The Cost of Storage on a Blockchain Database Cloud storage services work as follows: You pay a monthly fee up front for a fixed amount of storage space. During the paid time, you can use any amount of storage space up to that limit. When your paid time expires, you have two choices: pay for another month or your files get deleted. Your cloud provider only keeps your files for as long as you keep paying. Blockchain databases cant work on this model. A blockchain database must store data indefinitely, so the recurring payment model doesnt work. Data storage costs must be paid up front, and must cover not just that month but all the months and years to come. IPDB has developed a sustainable model for the long term storage of data: a one time, up-front payment that covers the cost of indefinite data storage. The payment must be enough to cover the cost of storage and the IPDB Foundations operating expenses. This blog post is a deep dive into the numbers that led to a single per-GB price point the cost of storing data indefinitely in a blockchain database. This kind of analysis has been lacking in the hype around blockchain technology. There are many problems that could be addressed with blockchain technology, but without an understanding of what a blockchain solution will cost, it is impossible to say whether economic efficiencies can be achieved. This post is a first step toward understanding which use cases could truly benefit from the application of blockchains. Before we dive into the model, lets outline some of our underlying assumptions: Conservative predictions: As a general rule, we have tried to keep estimates and assumptions very conservative. We would rather have happy surprises than unhappy surprises Continue reading >>

Is Blockchain Technology Really The Answer To Decentralized Storage?

Is Blockchain Technology Really The Answer To Decentralized Storage?

Is Blockchain Technology Really the Answer to Decentralized Storage? Blockchain is extraordinary technology, but may not be appropriate for storing large files, other data. The Blockchain has become much more than a simple piece of technology. It has become a symbol for freedom, transparency and fairness. With this being said, its no wonder we see projects leveraging Blockchain tech as a one-size-fits-all tool to solve all sorts of problems, many of which could not be further from the original purpose of the Blockchain. Nowadays, the words Blockchain technology are thrown around alot and sometimes the use of the technology itself is unnecessary. Tim Swanson, Director of Market Research at R3CEV has even coined the term " chain washing "to describe companies/startups that are using or trying to use Blockchain technology in certain areas when in fact, they could be using more advanced technology for the purpose at hand. This becomes especially evident when it comes to file and data storage. Although the Bitcoin Blockchain is basically a decentralized database for transactions, accounts and balances, keeping that information on a decentralized ledger is already proving to be a challenge due to capacity issues. Nevertheless, several projects and companies insist on looking at Blockchain-based solutions for storage and, while there are clear cases of misguided enthusiasm when it comes to the use of Blockchain technology, there are some projects out there that are worth taking a look at. Blockchain Technology as an Incentive Layer When it comes to a mutualistic relation between Decentralized Ledger Technology (DLT) and data storage, the most common use case for the Blockchain is as an incentive layer. This means that data isnt stored on the Blockchain itself, but the network Continue reading >>

Blockchain - Wikipedia

Blockchain - Wikipedia

For other uses, see Block chain (disambiguation) . Blockchain formation. The main chain (black) consists of the longest series of blocks from the genesis block (green) to the current block. Orphan blocks (purple) exist outside of the main chain. A blockchain [1] [2] [3] originally block chain [4] [5] is a continuously growing list of records , called blocks, which are linked and secured using cryptography . [1] [6] Each block typically contains a hash pointer as a link to a previous block, [6] a timestamp and transaction data. [7] By design, blockchains are inherently resistant to modification of the data. Harvard Business Review defines it as "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way." [8] For use as a distributed ledger, a blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for validating new blocks. Once recorded, the data in any given block cannot be altered retroactively without the alteration of all subsequent blocks, which requires collusion of the network majority. Blockchains are secure by design and are an example of a distributed computing system with high Byzantine fault tolerance . Decentralized consensus has therefore been achieved with a blockchain. [9] This makes blockchains potentially suitable for the recording of events, medical records, [10] [11] and other records management activities, such as identity management , [12] [13] [14] transaction processing , documenting provenance , or food traceability . [15] The first blockchain was conceptualised in 2008 by an anonymous person or group known as Satoshi Nakamoto and implemented in 2009 as a core component of bitcoin where it serves as the public ledger for all transactions. Continue reading >>

How Blockchain Can Protect Our Personal Data From Hackers - Marketwatch

How Blockchain Can Protect Our Personal Data From Hackers - Marketwatch

The way companies store personal data is broken. The cybersecurity industry has mushroomed in recent years, but the data breaches just keep coming. Almost every day brings news of a new data breach , with millions of records compromised including payment details, passwords, and other information that makes those customers vulnerable to theft and identity fraud. Its bad news for the companies too, as not only do they face huge fines (which are only getting tougher), they also suffer serious reputational damage. These are not small, naive businesses; they are major, often global, brands. They spend millions of dollars on security and yet still find themselves suffering. The best way to avoid a data breach is to not store any data. That sounds obvious, but until now its been virtually impossible. Merchants need user names, passwords, payment details and other personal details to deliver their services. And they usually need to keep hold of that information which means there are or thousands of databases worldwide containing some of your most sensitive personal data. No one would leave a written list of all their personal details at every physical store they go into but online we do it all the time. No wonder the Webs inventor, Tim Berners-Lee, said in March 2017 that Weve lost control of our personal data. Bring on the blockchain. The advent of decentralized blockchains means we now have the opportunity to store, share and pay in a completely new safer way, which puts the user back in control. The existing data security model is clearly dead. Blockchain is the fundamental change we need to protect both consumers information and businesses reputations. A combination of biometric security on your device, and the blockchain principles of private keys controlled solely by the Continue reading >>

So, You Want To Use A Blockchain For That? - Coindesk

So, You Want To Use A Blockchain For That? - Coindesk

So, You Want to Use a Blockchain for That? Antony Lewis is abitcoin and blockchain consultant and blogger, who previously served as the director of business development at bitcoin exchangeitBit. In this article, Lewis attempts to break down some of the more misunderstood questions circulating among institutions seeking to adapt distributed blockchain tech for alternative uses. There are good reasons and bad reasons to use blockchains. In conversations with people considering blockchain use cases, I have noticed common confusions arising from certain words. At issue, is that they were initially used in a narrow context (usually to describe bitcoin's blockchain), and are now being interpreted more generically for other blockchains, in cases where they may no longer apply. In this post, I hope to untangle some of these common misconceptions. Bitcoin has specific security features for writing data due to the burden of proof-of-work consensus . That is, in order to add blocks of transactions to the blockchain, you have to validate all the transactions within the block (easy) and then perform repeated calculations (called hashing) to find a magic number that makes your block valid and acceptable to the other participants according to the rules of the network (easy, but computationally expensive, therefore energy intensive, therefore expensive). This proof-of-work burden combined with the longest chain rule makes it expensive to mine your own subversive chain. Private blockchains on the other hand, with known block validators, may have other mechanisms replacing proof-of-work that limit the ability of others to subvert the chain. These rules can specify that blocks need to be signed by a limited, known list of signatories. The round-robin fashion by which entities take it in Continue reading >>

How To Use Blockchain To Build A Database Solution

How To Use Blockchain To Build A Database Solution

How to use blockchain to build a database solution Why would you want to use blockchain to build a database solution? And how would you actually do that? BigchainDB has answers. First Wall Street , then the database world. While most people are still trying to wrap their heads around blockchain and its difference from Bitcoin, others are using it in a wide range of domains. Is it hype, a case of having a hammer and seeing problems as nails, or could blockchain actually have a purpose in the database world? BigchainDB 's creators argue there is a reason, and a way, for blockchain and databases to live happily ever after. Blockchain technology, put simply, is a type of digital ledger which records transactions, agreements, contracts and sales. The technology is decentralized, which means that information is stored in computers around the world, and is constantly updated in real-time to reflect changes in stock, sales and accounts by bringing records together into blocks before algorithms 'chain' these data stores together chronologically. Blockchain was introduced by Bitcoin, which despite its oft discussed issues has illustrated a novel set of benefits: decentralized control, where "no one" owns or controls the network; immutability, where written data is "forever" tamper-resistant; and the ability to create and transfer assets on the network, without reliance on a central entity. The initial excitement surrounding Bitcoin stemmed from its use as a token of value, for example as an alternative to government-issued currencies. Now the separation between Bitcoin and the underlying blockchain technology is getting better understood, the scope of the technology itself and its applications are being extended. With this increase in scope, single monolithic blockchain technolo Continue reading >>

How Blockchain Can Be Used To Secure Sensitive Data Storage

How Blockchain Can Be Used To Secure Sensitive Data Storage

How Blockchain Can be Used to Secure Sensitive Data Storage Click to learn more about author Mary Ann Callahan. Data Security is no longer a luxury or an afterthought. With so much of our private, personal, and sensitive information being stored and transmitted online, tight security and privacy are now necessities for everyone. But, just as more of our lives are going online, we are hearing about more data breaches and hacks than ever. Here were going to take a look at how Blockchain technology can improve on current, centralized data security solutions, and help keep us safe and in control. Data is quickly becoming one of the most valuable resources in the world. The list of the top 10 companies by market capitalization is now dominated by data-centric companies like Facebook, Alphabet, Microsoft, Apple, and Amazon. That value means your data, especially your sensitive data, is now a prime target for cyber criminals, and you probably arent as protected as you think. Even giant companies like Anthem , Target Corp, and Home Depot have had major data breaches over the last few years affecting hundreds of millions of people. Clearly, current solutions arent good enough to keep us safe. Cloud services often arent the solution either. As hugely centralized systems, they are more valuable targets still. You also need to trust a 3rd party to store your sensitive data for you, which for many companies often isnt desirable or even legal. A new solution is needed. Blockchain technology has been one of the major technological breakthroughs of this century. Bitcoin, the first Blockchain application, allows a network of users to perform transactions without requiring the trust of anyone on the network, or a third party. Everything is encrypted, and nobody can tamper with the Block Continue reading >>

Blockchain: Is It The Future Of Data Storage?

Blockchain: Is It The Future Of Data Storage?

Blockchain: Is it the future of data storage? Blockchain is the number-one trend worldwide. Still, there is a lack of understanding of this technology among regular people, as they are used to considering it from the perspective of cryptocurrency. However, the Blockchain concept goes well beyond the digital currency marketplace and bitcoin exchange . Most of us have heard key phrasessuch as: decentralisation, no third party, autonomous, peer-to-peer. Although, many people do not have a keen insight on how in fact everything actually works. Lets learn the ropes and figure out, whether blockchain is a far-reaching and ambitious concept or a hyped falsehood. Like the Internet, Blockchain technology deals with information, but it takes it to a whole new level. So, from now on, you have to understand that everything can be perceived as information, even money. (For example: Bitcoin, the first of its kind cryptocurrency , in terms of which blockchain was implemented for the first time, is no more than a piece of digital information that has a certain value that you own.) Now, lets try to piece things together and go through the key phrases again. Blockchain is: A technology, on the basis of which a certain network can be designed. This network differs markedly from any other networks we recently had, because... It is decentralized. (For example: any website is hosted on a server, that means it is centralized.) Blockchain network, on the contrary, is allocated among tens or hundreds of thousands devices worldwide that process the network. In this regard... It doesnt require a third party. When it comes to valuable information, a third-party service is, commonly, required to be the guarantor of the security of this information. Due to the fact that blockchain is allocated and Continue reading >>

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