Loopring is a decentralized exchange protocol and an “automated execution system” built on Ethereum that will allow its users to trade assets across exchanges. It isn’t a decentralized exchange. Rather, it facilitates decentralized exchanging through ring-sharing and order matching. Decentralized and centralized exchanges alike will be able to implement Loopring, giving the exchanges access to cross blockchain and cross exchange liquidity and giving investors access to the best prices available on the broader market. Moreover, Loopring is blockchain agnostic, meaning that any platform that uses smart contracts (e.g., NEO, Ethereum, Qtum) can integrate with Loopring. Serving as its head, Loopring founder Daniel Wang used to run a centralized exchange called Coin Port back in 2014. “At that time,” he told Coin Central in an interview, “[I was] trying to solve the problems of centralized exchanges, and then I realized that it’s not possible. Those problems are inherent to the centralized exchange model.” Thus, he began conceptualizing what would become Loopring. In the past, he’s also held a position as a Google Tech Lead and was a co-founder and VP of Yunrang Technology. Loopring’s CMO, Jay Zhou, was formerly employed by Ernst and Young, helped found SJ Consulting, and used to work in PayPal’s Risk Operations unit. Johnston Chen, the project’s COO, has worked as the chief information officer at 3NOD. Loopring is not a DEX, but a modular protocol for building DEXs on multiple blockchains. We disassemble the component parts of a traditional exchange and offer a set of public smart contracts and decentralized actors in its place. The roles in the network include wallets, relays, liquidity-sharing consortium blockchains, order book browsers, Ring-Miners, and asset tokenization services. Before defining each, we should first understand Loopring orders. At its root, the Loopring protocol is a social protocol in the sense that it relies on coordination amongst members to operate effectively towards a goal. This is not dissimilar to cryptoeconomic protocols at large, and indeed, its usefulness is largely protected by the same mechanisms of coordination problems [20], grim trigger equilibrium, and bounded rationality. The Loopring Protocol can facilitate trading between ERC20 tokens. Loopr needs to convert Ether to Ether Token for trading as Ether is not ERC20 compatible, but Ether Token is. Converting between Ether and Ether Token will be done for you automatically when you submit an order, but if you want to trade frequently, we strongly suggest you to convert some Ether to Ether Token beforehand manually; otherwise each order will take one more blockchain transaction just for the ETH-WETH conversion which takes time and gas. Conversions between ETH and WETH are done on-chain through Ethereum transactions. ETH and WETH are always converted 1:1 which is guaranteed by the WETH smart contract. The WETH smart contract also guarantees the total WETH issued is exactly the total ETH deposited. In other words, ETH and WETH is equiviate in value, and WETH is just the ERC20 form of ETH. The Loopring blockchain project had managed to raise almost 15 million US dollars during the period of the Loopring ICO, as all the regulatory experts watched this unprecedented crowdfunding. Daniel Wang, the founder and the main person behind the Loopring ICO, hand made it very transparent that the interface is quite bad but the underlying mechanism and the Order matching facility is very great. Loopring mining can be initiated very easily by using various performance calculating devices such as CPU, GPU, as well as application specific integrated circuits. The Loopring mining process can be initiated through the high-end Linux systems, according to reports. Loopring mining is basically a metaphor which is not similar to the Bitcoin mining but here the users need to match the specific orders from a huge database. Specifically, Loopring mining requires the usage of the ethereum nodes along with JSON API, IPFS, etc. Check out CoinBureau for the full review of Loopring.
Digix makes it possible to buy gold in an efficient manner via cryptocurrency by providing investors with a tokenized version of gold so you don’t have to physically own or store it. Digix has two cryptocurrencies, Digix Gold (DGX) and DigixDAO (DGD), each of which serves a key role in the structure. The company proudly gets 99.99 percent of its gold from LBMA-approved refiners, with zero percent from fractional reserves, delivering confidence. With Digix, investors can take advantage of the stability and value of gold as well as the ease of cryptocurrency. Digix essentially tokenizes gold within Ethereum. It takes advantage of the Distributed Ledger’s immutability, auditability, and transparency, applying all these benefits to the precious physical asset of gold. Additionally, Digix has developed multiple technologies, such as the DGX tokens and introduced a new Proof of Asset protocol (POA). A key feature of Digix is its physical gold bullion. By investing, users buy bullion from the LBMA refineries, including the Assay Certificates from refiners like Nadir Bullion, PAMP Suisse, Valcambi, and others. For security, Digix includes third-party auditing from Bureau Veritas. Every quarter, it audits each gold asset within the safehouse vaults. This auditor has been in business since 1828 and is a world leader in certification, inspection, and testing services. With such a long track record, investors should be able to trust Bureau Veritas for their auditing services. Finally, Digix involves recast, which means customers can take their DGX delivery at the partnering custodial vault. Digix incorporated in Singapore in December 2014 and the DGD crowdsale took place on March 30th, 2016. It was the first ever crowdsale and major Distributed Autonomous Organization hosted on the Ethereum network. The sale intended to run for 30 days but met its 5.5 million dollars hard cap in just 12 hours, selling 1.7 million DGD tokens and reserving 300,000 for the Digix team. Pledges who sent over 15,000 USD worth of Ether received a special badge which will allow them to submit proposals to the DigixDAO. For better or worse, when you see the word DAO, you might think of hacking. In July 2017, over 4000 DGD were indeed stolen due to a vulnerability in the crowdsale smart contract. The bug was eventually fixed and the tokens reimbursed to the 35 affected addresses. In January 2018, the vast majority of the cryptocurrency market crashed. DGD was the only coin in the top 100 to rise in value in that time. Perhaps this is an early indicator that people will seek gold as a safe haven during times of market uncertainty. The ICO price of DGD was about 3 dollars, but in 2018, DGD reached an all-time high of over 400 dollars. When Digix finally delivers the DGX tokens and the rewards to DGD participants start rolling in, we might see an even higher demand for DigixDAO. When DGX goes live, it will be available for purchase with Ether on the Digix marketplace.