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.
Verge coin started its cryptocurrency journey in 2014, going by the name of DogecoinDark. The reason it was created was to create a truly private cryptocurrency. The founder of Verge felt that Bitcoin wasn’t anonymous, so he decided to build a new blockchain where transactions could not be traced. Verge uses multiple anonymity-centric networks such as TOR and I2P. The IP addresses of the users are fully obfuscated. The Core QT wallet has built-in TOR integration as well as SSL encryption which adds an extra level of security. Verge is an open source project with an active team of developers from all over the world. The development team is always in close contact with the community. Verge is not a private company funded through an ICO or premining. Wraith Protocol is a technology upgrade package that enables our users to be able to send and receive payments privately across our blockchain by enabling stealth addressing services. Additionally this update removes our QT wallet users off of clearnet and migrates everyone to SSL enabled Tor. Verge focuses on security and maintaining user anonymity just like Monero; so that is its latent upside. Many investors are also applauding its unique technology. Having been improved and integrated with the Wraith Protocol technology, verge users are now able to effortlessly switch between private and public ledgers on the Verge blockchain. Before this, private and public ledgers were mutually selected, meaning that they could not co-exist on a very similar blockchain. But investors are today free to use whatever ledger they want. A good example was when Wraith Protocol switched ON – one will not be able to view the transaction data, not even via the blockchain explorer. Additionally, Verge makes obscure the IP addresses in both instances. When coupled with Wraith Protocol Verge certainly becomes the only undetectable cryptocurrency. Furthermore, transaction speed on Verge is light speed at 5 seconds only, using Simple Payment Verification technology. Verge also maintains a community feel since it’s not a private company. Community members are responsible for the direction of its technology and where the coin heads next. It currently offers a number of secure mobile wallets, including the Tor Android Wallet, which offers mobile anonymity, another big plus over Bitcoin. Verges offers five different Proof-of-Work algorithms for mining. They include; Lyra2rev2, Scrypt, X17, blake2s and myr-groestl. Offering a choice of five different algorithms promotes inclusion, since a wider variety of users will now have an opportunity to not only mine but influence the network. Should one algorithm demand greater mining resources, users get an option of just switching to a different one.