QuarkChain is a secure, permission-less, scalable, and decentralized blockchain. One of the goals of QuarkChain is to utilize sharding technology to deliver over 1 million transactions per second (tps). Essentially, QuarkChain markets itself as a peer-to-peer blockchain with a high capacity throughput to help deliver fast and secure decentralized applications. The team behind QuarkChain created this blockchain to resolve the issue of scalability that all the major blockchains are currently facing. The team feels that because of the urgency of this issue, the Bitcoin community simply cannot afford to wait until they all agree on a solution. Instead, they feel that by offering different solutions, such as the one inherent in QuarkChain, this compels the community to split via a hard fork and find the solution that works best. QuarkChain encourages increased decentralization through multiple cheap nodes that then create a cluster that works as a super-full node. This prevents the high expenses associated with super-full nodes when the tps gets high. In terms of protection, all transactions within QuarkChain get the protection of 50 percent of the network’s hash power. This makes a double-spending attack incredibly challenging, particularly when combined with QuarkChain’s decentralized nature. QuarkChain relies on a two-layer blockchain structure. Sharding blockchains known as shards are the first layer, while the second layer is a root blockchain that confirms the shards’ blocks.The major work on QuarkChain began in Q2 2017 with research into the problem of blockchain scalability. In Q4 of that year, the team drafted the whitepaper. In February 2018, it released the white paper and completed verification code 0.1. March 2018 saw the 0.1 versions of both the wallet and testnet. Now in Q2, the team is working on the testnet 1.0 and smart contract 0.1. In Q4 2018, the team will have the QuarkChain Core 1.0, along with the mainnet 1.0 and the SmartWallet 1.0. By Q2 2019, both the SmartWallet and QuarkChain Core will be in their 2.0 versions. QuarkChain is a decentralized blockchain network that aims to resolve the issues of scalability that plague existing networks by using sharding technology. In this way, QuarkChain can dramatically extend the usefulness of blockchain technology since many applications are limited by the scalability of existing blockchain networks. The project is still in progress, but QuarkChain has already made many positive steps and already began invite-based beta testing for the testnet, showing significant progress and potential. The main features of Quarkchain are: 1. Reshardable two-layered blockchain: Quarkchain consists of two layers of blockchains. We apply elastic sharding blockchains (shards) as the first layer, and a root blockchain as the second layer that confirms the blocks from the first layer. The second layer that confirms the blocks from the first layer. The second layer is flexible to be resharded as needed without changing the root layer. 2. Guaranteed security by market-driven collaborative mining: To ensure the security of all transactions, a game-theoretic framework is designed for incentives, where at least 50% of overall hash powers are allocated to the root chain to prevent double spending attack on any transactions. 3. Anti-centralized horizontal scalability: In any blockchain network with a high TPS, a super-full node can be extremely expensive, which encourages centralization. In contrast, QuarkChain allows multiple cheap nodes forming a cluster to replace a super-full node. 4. Efficient cross-shard transactions: Cross-shard transactions in QuarkChain can be issued at any time, and confirmed in minutes. The speed of cross-shard transactions increases linearly as the number of shards increases. 5. Simple account management: There is only one account needed for the entire blockchain (shards) in QuarkChain. All cryptocurrencies from different shards are stored in one smart wallet.
KuCoin is an international cryptocurrency exchange based out of Hong Kong that currently supports the trading of 210 digital assets. What’s unique about KuCoin is that they share 50% of their overall trading fee revenue with users holding their exchange-based token. In a similar fashion to Binance, KuCoin offers relatively low tradings fees and incentives for holding (or trading) its native cryptocurrency. Back in 2011, the founders started researching blockchain tech and went further to build the technical architecture for KuCoin in 2013. 4 years later, the exchange launched with the ultimate goal of “becoming one of the top 10 worldwide hottest exchange platform[s]” by 2019. As stated on their official website which lists 12 core members, “Kucoin aims at providing users digital asset transaction and exchange services which are even more safe and convenient, integrating premium assets worldwide, and constructing state of the art transaction platform”. CEO and founder, Michael Gam, is a former technical expert at Ant Financial, an affiliate company of the Chinese Alibaba Group. He was also a senior partner at Internet giants like MikeCRM and KF5.COM. OO, Eric Don, is referred to as a “senior Internet researcher, systems architect, and Internet industry star”. He is also stated to be the CTO and senior partner of IT companies including YOULIN.COM, KITEME, and REINOT. However, it’s unclear if these websites actually exist as they did not show in a Google search or when entering the website domains. According to his LinkedIn, he is currently CTO at Youlin Network Technologies, yet there is no mention of KITEME or REINOT. With its growing user base and increasing number of cryptocurrencies being offered, KuCoin may be set up for a strong run in the markets. KuCoin Shares volume is expected to grow as the daily trading volume on KuCoin, hence, trading fees collection grows & thus, the size of dividend payout grows. This can lure investors to hold KCS token which may even increase its value. KuCoin faces stiff competition from OKEx, but it expects to continue to grow its community exponentially as it is being projected to be one among the top 5 exchanges in the world.