Huobi, the third-largest cryptocurrency exchange in the world, recently announced and launched a new currency. The Huobi Token (HT) rewards exchange users for their loyalty with lowered transaction fees while also carrying its own value in tradable pairs against popular currencies. The hope was to bring greater value to Huobi’s millions of users, mostly located in Asian countries. The launch of the Huobi Token follows in the footsteps of other loyalty-building tokens that other exchanges have launched. The first and most successful of these tokens has been Binance Coin (BNB). The creation of BNB secured Binance’s place as the world’s leading exchange. It offered discounted trading fees in exchange for customer loyalty, primarily functioning as a loyalty rewards system. Huobi officially announced its intentions to launch a new token on January 22, 2018. Over the course of 15 days, Huobi would distribute 300 million HT (60% of the total supply) to its pro users who purchased a discounted service package. Each morning, a new batch of HT would become available on a first come, first served basis. Huobi declared this token distribution scheme, “not an ICO,” due to the nature of the offering. Users are buying a specific service package, part of which includes HT that give a discount toward trading fees. The exchange launched the Huobi Token as part of an overall strategy to recover its user base after tightening regulations in China severely restricted cryptocurrency trading. In an interview with CoinDesk, Leon Li, Huobi’s founder, revealed that Chinese rule changes had decimated the trading volume on Huobi by 95% between September 15 and November 1, 2017. The HT token distribution began on January 24 and wrapped up on February 7, 2018. Each day of the distribution, millions of tokens sold out in mere minutes after going on sale. At that point, 300 million HT had been distributed to Huobi Pro members who bought packages. That’s 60% of the total supply currently in public circulation. Another 200 million HT, 40% of the total supply, was set aside. 20% goes toward user rewards and platform operation. The other 20% is vested for four years and constitutes the team reward. Huobi isn’t the first exchange to issue its own token. Binance (BNB), Bibox (BIX), KuCoin (KCS) and Coss (COSS) have all issued their own tokens as well.
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.