iExec is an open-source, decentralized cloud computing platform, running on Ethereum blockchain. iExec allows decentralized applications (dApps) an on-demand access to computing resources and technologies on iExec cloud. iExec has built a blockchain network where dApps can take advantage of cost effective and high-performance resources such as servers, databases, SaaS applications, web hosting and computer farms. iExec’s native cryptocurrency — The RLC token is the primary asset used to access services in iExec infrastructure. RLC is short for “Run on Lots of Computers.” iExec is headquartered at Lyon, France. It was founded by Gilles Fedak and Haiwu He, both are serving as Chief Executive Officer and Head of Asian-Pacific Region of iExec, respectively. Oleg Lodygensky is the Chief Technical Officer. Gilles Fedak received his PhD from the University of Paris Sud in 2003, and has been working as INRIA (Inventeurs du Monde Numerique) research scientist at ENS in Lyon, France. Similarly, Haiwu completed his M.Sc. and PhD from the University of Sciences and Technologies of Lille, France. On April 19, 2017, iExec launched its token sale and raised more than $12 million in exchange for 86,999,784 RLC. In order to support dApps, smart contracts, and their platforms, iExec takes processing-intensive computations off-chain so as to keep a blockchain’s on-chain functions running smoothly. To do this, iExec makes use of XtremWeb-HEP, an open-sourced Desktop Grid Software. Desktop Grid computing (also known as Volunteer Computing) pools unused computing resources to be used by applications and platforms, and according to iExec’s whitepaper, XtremWeb-HEP “implements all the needed features” to make this possible on a global scale, including “fault-tolerance, multi-applications, multi-users, hybrid public/private infrastructure, deployment of virtual images, data management, security and accountability, and many more.” Essentially, with this software, dApps can utilize any computing resource in the iExec framework to run their programs. In their whitepaper, the iExec team lays out the project’s competitive landscape and explains these competitors in relation to iExec. They’re quick to note that decentralized cloud storage providers like Filecoin, Storj, and Siacoin are not direct competitors, and it’s easy to see why. While iExec could theoretically take a step in this direction as it matures, it’s not a storage platform; it’s a computing platform. This does put it in competition with other decentralized computing protocols like Golem and SONM. Both of these, however, are taking aim at a different animal. Essentially, they’re both building a decentralized supercomputer on blockchain technology, while iExec is targeting dApp development and sustainability. Both look towards a future of a blockchain-powered, decentralized internet, but their functions, while sometimes similar, are more complementary than conflicting.
ASCH is a new generation block chain innovation application development platform based on side chain structure which is efficient, flexible, safe, low-cost and reused. With the use of JavaScript as its application programming language, the platform makes use of relational databases to store data, drawing similarities between developing a DAPP and developing a traditional web application. This type of platform carries a great deal of appeal to developers, as well as small and medium enterprises, since its ease of use results in greater productivity, fuelling and facilitating a more prosperous ecosystem in the process. ASCH is open in design and is not limited to any particular niche market such as news aggregation, the issue of assets, arbitration, the existence of certificate, property rights certification, the Internet of things, supply chain finance, asset digitization, commodity tracing, prepaid card system, block chain contract deposit etc. In terms of the consensus mechanism, ASCH has inherited and enhanced the DPOS algorithm, simultaneously reducing the probability of forking and double spending by a significant degree. Furthermore, ASCH’S side chain, i.e. the application mode, not only improves scalability by delaying the expansion of the block chain, but also makes DAPPS more flexible and personalized. ASCH is a forward-looking, low-cost and one-stop application solution, which is believed to be a new generation of incubator for decentralized applications. Adhering to the values of enterprise accomplishments, innovation leading, technology belief and embracing future, ASCH is devoted to building a global commercial block chain application ecosystem, which is not only using block chain technology to empower various industries, but also being the base of the world class economy. The services provided by the ASCH platform include a public chain and a set of application SDKs; the public chain is called the main chain. The ASCH application SDKs can be used to develop blockchain applications with a free-running, immutable ledger. These applications are also known as side chain applications. An application SDK has a built-in cross-chain protocol, through which the side chain can communicate with the main chain. In other words, the main chain has the function of asset routing, through which a variety of assets can flow among different applications. ASCH’s ecological system contains multiple chains, with each chain possessing the ability to carry multiple tokens or assets. Each token or asset can also be transferred to multiple chains.