Syscoin is “a global network, a distributed ledger, a decentralized database and a blockchain. It is also a cryptocurrency, an altcoin, a digital currency and a tradable token.” Originally launched in late 2014 and created through a Bitcoin fork, the current version brings us to Syscoin 2.1 and has an algorithm that allows it to be merge-mined with Bitcoin. Merge mining is simply the ability for miners to simultaneously mine two different cryptocurrencies based on the same algorithm. The project attempts to remove the middleman and put money directly back into merchants/consumers hands, eliminating hefty fees currently charged by big corporations like Amazon and eBay. To facilitate near-zero fee transactions, you can use its native cryptocurrency, Syscoin (SYS), to pay for goods on the marketplace. However, you can also pay using alternate cryptocurrencies such as Bitcoin or Zcash. Syscoin is led by a team of developers and was created by its current core developer, Sebastian Schepis. According to Proof of Developer, a website that verifies, evaluates, and ranks developer teams, Syscoin received 5 stars in 2014. Blockchain Foundry maintains Syscoin as its flagship product, with a mission to “disrupt markets by leveraging the potential of blockchain technology”. In March of 2017, Blockchain Foundry partnered with the Microsoft Azure ecosystem and is one of the founding members of the Digital Identity Foundation (DIF). Other founding members of the DIF include the likes of corporate giants such as Microsoft, Accenture, ConsenSys, and more. Syscoin’s blockchain delivers faster speeds along with lower transaction fees than its predecessor, Bitcoin. It can support 750 tps, and with the upcoming masternode release, it will support more than 300,000 tps. For now, it’s one of the cheapest cryptocurrencies regarding transaction fees (behind zero-fee transaction cryptocurrencies such as NEO and NANO), even cheaper than XRP.' Some of the features highlighted on the SysCoin website includes :- 1. Buy/Selling goods on the blockchain 2. Brokerage on the blockchain 3. Issue and trade certificates on the blockchain 4. Merged Mining
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.