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Your Smartphone’s Storage Could Help Fuel the Future Smart City



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Blockchain data science has been labeled a dream by those in the field for its great potential in real-time analytics and in more easily identifying longer-term data patterns.

But the challenge of storing Big Data is one that will require a more scalable solution than blockchain technology, and indeed a better solution than the hardware-based data centers relied on today.

One startup has proposed the use of a new technology, but it’s not blockchain—in their eyes, it’s much better.

Enter DAG

CyberVein, based in Shenzhen, China, seek to use a Directed Acyclic Graph (DAG) architecture as they look away from traditional blockchains.

This is a move that may carry some capital; a major strength of a DAG-based network is that ledgers can be essentially sharded – or broken up into smaller pieces – which means that the entire ledger does not have to be seen by each and every node.

Ethereum’s own sharding solution is expected to take up to five years to implement, while Bitcoin is capped at 1mb of data for each block and will hope that ‘soft forks’ such as SegWit can come good.

But a scalable solution that arrives before then could be set to change the game and a DAG-based network is a potential answer, with a growing amount of users only serving to improve the network’s efficiency.

The Smart City Industry is Set to be worth $158 Billion by 2022

Investment is set to roar into the Internet of Things (IoT) in smart cities—that is, the web of interconnected devices that will produce data on measures such as traffic flow and electricity usage.

However, this is a scale of co-ordinated data collection that has never before been imagined. In the future, there will be petabytes of data continuously collected every single day and across every major city in the world, perhaps even beyond city confines.

Here is where CyberVein think they may have a clever solution: they want to decentralize data by storing datasets across donated disk space from millions of users on their network.

This would theoretically scale as far as it was needed to, provided that the network has enough users, and could easily handle continually growing datasets.

China is also home to roughly half of the 1,000 smart city projects across the world. This puts CyberVein, based in what has been dubbed China’s Silicon Valley, right at the centre of the action.

How a DAG Might Work in Practice

A DAG-based network looks to resolve the challenge of siloing smart city data; the answer for CyberVein is to not silo it at all. Databases can be stored across the devices and computers of its network users, who are rewarded with CyberVein Tokens (CVT) for the storage space donated.

The beauty of a DAG architecture means that it has no blocks – and thus no mining – with each transaction holding two layers; the transaction layer and the data layer.

These transactions are verified by the ‘father-son’ nodes, aka. the nodes that precede and follow the transaction, which means it can finalize in a matter of seconds.

Each time a user wishes to make a transaction, their device, as a node, will have to verify the transactions of at least two other nodes. The value of data is intrinsically linked to whether it is verifiably true, so the immutable nature of the transaction chain ensures confidence in data.

Such technology could be so seamless that cities would live and breathe without ever really noticing it. But amid the hustle and bustle, a DAG architecture would be fuelling a smart city and helping to optimize the daily lives of its inhabitants.

All of this because of a user base that offers up a small amount of storage space in exchange for crypto tokens. It sounds simple, but right now it may just be one of the more plausible solutions for Big Data out there.

Disclaimer: This article should not be taken as, and is not intended to provide, investment advice. Global Coin Report and/or its affiliates, employees, writers, and subcontractors are cryptocurrency investors and from time to time may or may not have holdings in some of the coins or tokens they cover. Please conduct your thorough research before investing in any cryptocurrency and read our full disclaimer.

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How Cryptocurrencies Will Change Online Gambling in the Future



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Anyone who has followed online gambling since the beginning can tell you that things don’t stay the same for long. One of the reasons for this is that technology improves at such a ridiculously fast pace, and innovators in this industry are able to match up with those technological changes pretty quickly.

An innovation in technology that the Internet gambling industry has really learned from is cryptocurrency, with bitcoin in particular leading the way. We’ve seen it emerge as an alternative banking method, but it’s going to change the industry as a whole in ways that people can’t quite understand yet.

A Post-Legality Era

Something that has eluded online gambling since its inception is the idea of a global governing body. As it stands right now, each individual country (and smaller units of jurisdiction) have their own governing bodies that oversee in the industry. A lot of these laws are tied to banking laws, and that’s where the legality of playing in bitcoin casinos becomes such an interesting topic.

In the present, we’re seeing country-based regulatory bodies from places like Malta, Gibraltar and the United Kingdom start to work together and recognize each other’s licenses more and more. That’s taking serious steps towards having a global governing entity, and once that happens, the role of bitcoin is going to be even larger than it is now because it’ll…

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VOLUM (VLM) Announces Commencement of Token Generation Event




ESTONIA, May 4, 2019 – VOLUM (the “Company”), a multi-dimensional blockchain technology holding company, is thrilled to announce the commencement of the Volum (VLM) Token Generation Event (“TGE”) beginning on Saturday, May 4. The VLM utility token is the native cryptocurrency powering the VOLUM supply chain and logistics management platform.

Driven by algorithmically intelligent software tailored to logistics and supply chain management, along with Internet-of-Things (“IoT”) integrated functionality, and a backbone of hybrid public and consortium blockchain architecture, the platform is organized around the Volum (VLM) token. The VOLUM TGE will be managed by deploying ERC20 tokens on Ethereum Mainnet to maximize future access to cryptocurrency exchanges.

The VOLUM platform operates as a comprehensive control center for supply chain and logistics management operations. Companies who use this platform will be able to carry out a wide range of blockchain transactions including: Payments, Rewards, Purchase Orders, Legal Contracts, Regulatory Compliance, Taxation, Shipment Management, Letters of Origin, Customs Documents, Inputs/Outputs and Inventory Ordering, Delivery/Parcel Tracking, IoT Monitoring and Reporting, Big Data Analytics, and Inputs and End-Product Tracking/Traceability.

“The total addressable market for a blockchain-based supply chain solution is nearly $54 trillion globally, with the majority of the world’s workers playing some part of this equation” noted Arnaldo A. Detrés, CEO of Bengala Technologies, LLC, the principle blockchain developer working to build the VOLUM platform. “However, blockchain solutions have been unable to…

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How to Secure Yourself in Relation to Bitcoin: Top VPN Services




Nowadays, more frequently people opt to use cryptocurrency such as Bitcoin while dealing with financial transactions for its convenience, so its increasing prevalence isn’t round-of-the-mill phenomenon but still, its users need to create fully protected cooltechzone to secure their data.

Recently, a great abundance of VPNs have started to accept it as a way of payment and it definitely makes sense: one buys VPN to retain anonymity on the Web, so why not to use the privacy-focused payment method? Paying for a VPN service with Bitcoins or any other cryptocurrency secures personal data from curious eyes leaving no traces.

What is a VPN?

Virtual Private Network (VPN) is generally presented by the group of linked to each other computers via the Internet. VPN boosts protection and provides a high level of anonymity to all types of Internet connections.


While the connection to the ordinary Wi-Fi networks, a user usually gets access to the Internet directly, thus he becomes vulnerable to the hackers and the malware attempting to steal his personal data. On the other hand, applying VPN one transmits and gets data in encrypted form which makes it protected.


Generally, isn’t hard to trace an Ip-address of any user and to identify his location with sufficient accuracy. With the help of VPN, the attacker will only get the address of the removed computer. Undoubtedly, the safeguard…

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