NPD said the next step for retailers is to develop their own cryptocurrency to prevent customers from having to use credit cards when shopping online. NPD said the practice makes sense for the retailer, because if the customer could send the payment transfer via blockchain, it would avoid third-party clearing house fees retailers pay for processing card payments.
Many people believe this is the future of the blockchain. It maintains network security and allows for scalability. The biggest criticism is that it heavily favors those with more funds as smaller holders have no chance of becoming witnesses. But the reality is, smaller players have no hope of participating in Proof of Work either, as mining from your own laptop at home is no longer a reality. Smaller players get outcompeted by bigger players who have massive mining rigs. STEEM and EOS are examples of DPOS blockchains. Even Ethereum is moving to POS with its Casper project.
Public blockchains are just that, public. Anyone that wants to read, write, or join a public blockchain can do so. Public chains are decentralized meaning no one body has control over the network, ensuring the data can’t be changed once validated on the blockchain. Simply meaning, anyone, anywhere, can use a public blockchain to input transactions and data as long as they are connected to the network.
Bitdeal is a bitcoin cryptocurrency exchange software & Blockchain development company. The main focus of the firm is to reduce the risks in bitcoin trading and to encourage new bitcoin exchange startups by providing a well-developed bitcoin exchange script or a cryptocurrency exchange software.  Being a cryptocurrency exchange software solution, bitdeal has covered around 50+ countries around the world, and have collected more than 200+ ... Read more
Perhaps blocks are created faster on that sidechain. Perhaps transaction scripts are “turing complete”. Perhaps you have to pay fees to incent those securing that sidechain. Who knows. The rules can be whatever those running that sidechain want them to be. The only rule that matters is that the sidechain agrees to follow the convention that if you can prove you put some Bitcoins out of reach on the Bitcoin network, the same number will pop into existence on the sidechain.
draglet is a German company founded in Munich 2013 and specializes in developing Blockchain Applications, Smart Contracts and Bitcoin/Cryptocurrency Exchange Software for businesses. The development team of draglet has been involved in the cryptocurrency world since its initial beginnings and possesses years of experience, providing companies with quality Blockchain applications on a global scale.    
Sidechains with specific purposes could be formed with specific features while still enjoying the widespread adoption and value that Bitcoin holds.  Most importantly it can add these features without consensus from the Bitcoin community. Sidechains have the potential to replace many Cryptocurrencies as it allows features that were previously unique to these currencies to be available on Bitcoin. It also allows developers to experiment with sidechains and scope its full potential while still keeping coins linked to Bitcoin.
The Cryptocurrency Data Feed, a partnership between Blockstream and Intercontinental Exchange (ICE), offers traders best in class real-time and historical cryptocurrency data from a strong and growing list of exchange partners worldwide. With over 25 exchanges, 133 crypto and fiat currency pairs, and over 200M order book updates every day, the Cryptocurrency Data Feed is the most comprehensive and robust source of global cryptocurrency data.
Private blockchains, or as I like to call them, shared databases, have a place in improving efficiency for financial institution for back-office settlement processes. They should not be seen as controversial, or part of some dialectic struggle between punks and police. To the extent that the identifying shroud of AML/KYC can be placed into public blockchain metadata (possible in Omni Layer transactions over the Bitcoin blockchain) there may even be interoperability between these two sides of the train tracks. Right now, due to state-granted monopolies to issue credit, most of the world's liquidity is still in banks. However, we believe that in the long-term, public blockchains, especially those based on work, will come to take a more significant part in the ‘System D’ informal economy, which is where most of the global economic growth will originate.” 
Eris Industries, aims to be the provider of shared software database using blockchain technology. Blockstack, aims to provide financial institutions back office operations, including clearing & settlement on a private blockchain. Multichain, provider an open source distributed database for financial transactions. Chain Inc., a provider of blockchain API's. Chain partnered with Nasdaq OMX Group Inc., to provide a platform that enables trading private company shares with the blockchain.
These kinds of blockchains are forks of the original implementations but deployed in a permissioned manner. Mainly hyped because the companies behind these chains want to onboard corporations in order to generate buzz around their their chain. It’s tolerable for proof of concepts or if they plan to move to public as soon as possible; otherwise they are just using the wrong set of tools for the job.
@quinn – thanks for the comment. I probably didn’t write clearly enough… I was trying to point out that none of the higher-level concepts we’re familiar with (addresses, bitcoins, the “ledger”, etc) actually exist at the protocol level…. it’s just transactions, transaction outputs, unspent transaction outputs, etc… they combine to create the illusion we’re all familiar with.
Since extension blocks can be implemented via soft forks, the features of the extension blocks are essentially opt-in for users. Even in the case of extension blocks with a larger block size limit, users are not forced to upgrade and validate or propagate blocks that are much larger in size. Those who wish to enjoy the level of decentralization offered by 1MB blocks can continue to do so, while those who would like to experiment with much larger block size limits can do so on an opt-in basis.
Public chains to the rescue! Public chains offer public transaction data that can be verified in real-time by anybody that cares to run a node. The more independent users or institutions that take part in verification, the more secure and decentralised the chain becomes! At Iryo, we strive to have every clinic doing full validation of the global state for the relevant smart contracts (EOS based). Public blockchains are mainly useful for two things; value routing (including initial creation and distribution) and trustless timestamping of messages.
“Blockchain could significantly reduce time delays and human mistakes, and monitor cost, labor, waste and emissions at every point in the supply chain. In the food sector, a manufacturer could automatically identify contaminated products in a matter of seconds and wouldn’t need to pull an entire product line from store shelves in the case of contamination.”
Hey there! I am Sudhir Khatwani, an IT bank professional turned into a cryptocurrency and blockchain proponent from Pune, India. Cryptocurrencies and blockchain will change human life in inconceivable ways and I am here to empower people to understand this new ecosystem so that they can use it for their benefit. You will find me reading about cryptonomics and eating if I am not doing anything else.
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