Blocknet (sometimes referred to as Block) is a decentralized, platform-as-a-service protocol that connects the nodes of different blockchains. As you probably know, there are hundreds, if not thousands, of blockchains that currently exist, and this number is showing no signs of slowing down its growth anytime soon. Many of these chains, though, are unable to communicate and interact with each other, creating small groups of siloed ecosystems. And, the inability of these groups to work together is holding back the entire blockchain industry. To solve this problem, Blocknet is working to make blockchains interoperable, mobile, and modular. This enables different chains to provide microservices to each other in a peer-to-peer fashion at higher security, faster speeds, and more efficient scalability than today’s current options. Blocknet is aiming to be the “Internet of Blockchains” through inter-blockchain connective services. Simply put, Blocknet enables you to develop on one blockchain, Ethereum for example, but access the functionality of other chains, like NEO. The team is building the infrastructure using three core components that work together to provide three primary services for these inter-chain decentralized applications (dapps). The XBridge, a blockchain router, is the backbone of the Blocknet platform. It’s the first peer-to-peer protocol to connect nodes on different blockchains, allowing them to communicate with one another. Using the XBridge, you’ll not only be able to perform cross-chain atomic swaps, but you’ll also be able to transfer additional data and execute smart contracts across chains. Blocknet uses a Proof-of-Stake consensus algorithm with three types of nodes to maintain the network. Service nodes collect and distribute trade fees on the platform as well as prevent spamming and DDoS attacks. To run a service node, you need to hold at least 5,000 BLOCK and keep your node computer running at all times. The Blocknet team recommends that, if you plan to run a service node, you should also run multiple full node wallets of whichever coins you want to support. This maximizes the trading fees you receive. Staking nodes confirm network transactions. When running a staking node, you’ll receive 9-14% annual returns from block rewards as well as a portion of the trading fees. There’s no minimum BLOCK amount you need to keep in your wallet to receive these, but you need to keep the wallet running at all times. There’s limited information available on the Blocknet team. Dan Metcalf and Arlyn Culwick founded Blocknet in 2014 as a fork of PIVX. According to his LinkedIn page, Metcalf was a Bitcoin developer for 5 years as well as a Senior DevOps Engineer at Philips. Outside of Blocknet, Culwick is also the PR and Media Liaison for XCurrency. Blocknet launched the service nodes on their main net in September 2017, and on March 1st, 2018, the team will release the beta version of the DEX. The project has also partnered with the 0x protocol to add ERC20 token support on the platform. Blocknet is connecting the isolated blockchain systems that currently exist to create one, cohesive ecosystem. Through the platform’s XBridge, the team is building a blockchain Internet in which you can build dapps that utilize features from several different chains. Starting with a DEX, the project has a lot on its roadmap including a service delivery system for blockchains to provide and receive payment for providing functionality to other chains. This is a complex project, but Blocknet already has the partnerships in place (0x, Poloniex) to see it through to the end. Blocknet consists of the following coins: XCurrency, Stealth, SonicScrewdriver, Fibre, Librexcoin, APEXcoin, BitSwift, XCash, UtilityCoin
Theta is a decentralized video delivery network, powered by users and an innovative new blockchain. Theta is an open source protocol purpose-built to power the decentralized streaming network and will allow for vertical decentralized apps (DApps) to be built on top of the platform to enable esports, music, TV/movies, education, enterprise conferencing, peer-to-peer streaming, and more. SLIVER.tv’s DApp will be the first application built on the Theta network leveraging its existing user base of millions of esports viewers. DSN and the Theta protocol solve various challenges the video streaming industry faces today. First, Theta tokens are used as an incentive to encourage individual users to share their redundant memory and bandwidth resources as caching nodes for video streams. This improves the quality of stream delivery and solves the “last-mile” delivery problem, the main bottleneck for traditional stream delivery pipelines, especially for high resolution high bitrate 360° virtual reality (VR) streams. Second, with sufficient amount of caching nodes, the majority of viewers will pull streams from peering caching nodes. This significantly reduces content delivery network (CDN) bandwidth costs, which is a major concern for video streaming sites. Lastly, the Theta network greatly improves the streaming market efficiency by streamlining the video delivery process. For example, advertisers can target end viewers at a lower cost and reward influencers more transparently.The Theta blockchain introduces three novel concepts: Reputation Dependent Mining: In the Theta protocol, the caching nodes play the role of miners in the blockchain. The block reward is not a constant, but depends on the reputation score of the caching node that mined the block. To obtain more mining rewards, miners not only spend computation power to mine blocks, but also relay video streams to downstream viewers to increase their reputation scores. Global Reputation Consensus: We propose a mechanism for the Theta network to reach the global consensus on the reputation scores for each caching node. Proof-of-Engagement: We introduce a novel Proof-of-Engagement scheme to prove that viewers legitimately consume the video streams, providing better transparency to advertisers and a basis for viewers to earn Theta tokens for engaging with the content.