Frequently Asked

Network Technology

What do you mean by Device-to-Device (D2D) Connectivity?
D2D means your phone links and exchange data with other phones in close proximity, without requiring Internet connectivity, and without spending any of your 4G data or requiring a public WiFi hotspot with Internet connectivity.
How do you achieve seamless D2D Connectivity?
Our solution mixes Bluetooth Low Energy (BLE) and WiFi-Direct technologies, being able to transfer content as fast as 250 Mbps but also being energy efficient and not wasting energy when there are no connectivity opportunities.
Is D2D communication secure and private?
D2D communications are encrypted and only DataHop users can access to it. Also the content transfered can be confidential and DataHop users are not going to share anything else than some storage space.
What data do you collect?
The only statistics that DataHop collect from its users are the transfer times and location. However all this information is anonymized and there is no record linking users id.
Is DataHop a platform for video delivery only?
No, DataHop platform can be used to disseminate any kind of content. However, multimedia traffic is becoming most of the Internet traffic nowadays and therefore we expect this will be the main use of the DataHop platform.
What is Content Centric Connectivity?
DataHop make use of the Content Centric Networking paradigm to develop a new Content Centric Connectivity mechanism, where users only connect using D2D when they discover content of their own interest, regardless the destination host information.
What is Content or Data Centric Networking?
Content Centric Networking is a new networking paradigm where endpoints in the Internet, in contrast to the typical host-oriented networking, communicate based on named data instead of IP addresses. Content Centric Networking is agnostic to which host serves the content and only considers the required content piece that can be served by any host, that is explicitly secured by individual pieces.

Blockchain Technology

Which blockchain do you use?
Our blockchain is a part of the Cosmos universe and is implemented using Cosmos SDK.
What's a simple explanation of progressive mining?
Users are rewarded not only for their own file transfers, but also for the transfers of users they gave the file to. You can think of it as a recursive incentives scheme, similar to the technique used by the MIT team during the The Red Balloon Challenge. However, our scheme is adapted to work in a digital environment and can protect against the Sybil Attack.
What are the main principles of your Proof-of-X Consensus algorithm?
Our Proof-of-X algorithm is based on Proof-of-Stake, but introduces prestige - an additional to coins resource in the network. Prestige is renewable and directly determines users' probability of minting a new block. Users can increase their amount of prestige by holding more coins or performing useful work (transfering files).
Who are the miners in your blockchain?
How often is block mined?
Does your blockchain include fees and how many Transactions per Second can it support?
Our implementation directly inherits characterictis of Cosmos' Tindermint consensus protocol that can process thousands of transactions per second, with commit latencies on the order of one to two seconds.

Content Publishers

How can DataHop change content publishing?
Why is DataHop cheaper than traditional CDN distribution?
Can DataHop support individual content publishers?
DataHop not only supports individual content publishers, but also allows independent publishers to distribute their content and get rewarded by that without having to transfer their content rights to big companies, incresing their revenue.
Can DataHop support DRM-protected content and avoid content piracy?
DataHop filters DRM-protected content that is published without the consent of the author, and therefore it is not possible to disseminate pirate content without the creator's authorization.
Can malicious users insert content in DataHop, pretending to be legitimate content publishers?
Content Publishers are authenticated in DataHop, and no other users can impersonate them to publish content in their name.
Can DataHop support subscription-based (i.e., premium) content?
Yes. Content can be encrypted to provide full confidentality and only users subscribed will have access to the content. We will provide tools for content publishers to ensure that only users with valid subscriptions have access to the DRM (Digital Rights Management) controlled content.

End Users

What devices can join the DataHop network?
Any smartphone device that downloads the DataHop app can join the network. We will release a first Android version of the app for the Testnet, but we also plan to develop an iOS version.
How much can I earn?
DataHop users can earn money depending on how many periodic transfers they do, but also depending in how many times the content they transfered is disseminated by other users. The reward they get is higher when they transfer content that will be very popular but no one has the content yet, compared with popular content that everyone already received so it is no longer of their interest. In the link you can find a reward users calculator.
What privacy guarantees does DataHop provide?
DataHop ensures full privacy of its users providing anonimity in the D2D communications but also blocking any access to personal users' data in the smartphones.
How much battery does DataHop consume for the average user?
We could add a link to a calculator tool with some back-of-the-envelope battery consumption calculation
How much memory does DataHop need from the average user?
We could add a link to a calculator tool with some back-of-the-envelope storage size calculation per different content
Why would I join? What are the benefits of DataHop to the end-user?