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.
Enjin Coin is a cryptocurrency for virtual goods created by Enjin. Enjin is the “largest gaming community platform online” with over 250,000 gaming communities and 18.7 million registered gamers. The Enjin team is designing the coin completely around gaming with the goal of it being the most usable cryptocurrency for the industry. The project includes the Enjin Coin as well as a suite of software development kits (SDKs) that developers can integrate into their games and communities. Bringing blockchain to gaming helps to reduce the high fees and fraud that’s prevalent in the transfer of virtual goods. Enjin Coin is an ERC20 token built on the Ethereum network. With that, the project not only acts as a cryptocurrency but also has smart contract capabilities. It’s also one of the first projects testing the Raiden Network, Ethereum’s version of the Lightning Network. The Enjin Coin platform provides a laundry list of features through its public API and SDKs. To keep things brief, though, we’ll only be discussing a few of the major ones in this article. The largest value Enjin Coin brings to the gaming community is in its creation and management of virtual goods. Developers on each platform can easily create a currency unique to their community that’s backed by Enjin Coin as the parent currency. This gives the coins all the benefits of the blockchain (speed, cost, security, etc…) while still staying customized to their respective platforms. Enjin, the company behind Enjin Coin, is the largest online gaming community creation platform. Started in 2009, the company receives 60 million views per month and transacts millions of U.S. dollars each month in their community stores. The team is deploying Enjin Coin across the entire Enjin CMS platform – over 250,000 gaming websites. Advisors to the project consist of Anthony Diiorio (Ethereum co-founder) and Pat LaBine (previous producer and technical director at Bioware). Enjin has also formed partnerships with Unity, PC Gamer, and NRG eSports. The team held a successful ICO in late 2017 in which they raised ~$35 million between the private and public rounds. Although it’s still a young project, the team spent the last quarter of 2017 building the Platform API, Mobile Smart Wallet, and a Java SDK alongside creating a Minecraft plugin. They’ve got plenty in store for 2018, but the highlights include various platform plugins, the Efinity release, and numerous other SDKs. Enjin also features a tool known as TopLists, which allow users to rank games, servers, teams and any other item. TopLists will be deployed as a decentralized smart contract with functionalities that will allow for market bidding or democratic voting. List creators are incentivized to promote and market their list because these creators will receive tokens when users perform tasks such as voting on their list. Enjin Coin is an ambitious project that aims to integrate online virtual gaming with decentralized technologies. Enjin Coin project promises a lot, and it is only with the passage of time that we will able to see if it can deliver on those promises.