According to the whitepaper, Asch is a decentralized application platform that offers a set of SDK (software development kit) and API (application programming interface) tools to assist developers in building DApps using JavaScript and sidechain technology. 

Asch aims to offer its users an easy-to-use, fully functional ecosystem that includes a range of industry-standard solutions, including custom sidechains, smart contracts, application hosting, and many others. Every node and user within this ecosystem can easily download and run these applications. The entire process is secured by the Asch sidechain consensus network. A sidechain is a blockchain that is independent of its parent blockchain and is linked to it by a two-way peg. The two-way peg allows assets to be exchanged at a predefined rate between the main blockchain and the sidechain. 

The cryptocurrency token of Asch is called XAS. XAS is capable of interacting with a sidechain or any decentralized application (DApp) via a two-way peg mechanism, allowing it to act as a bridge or media for asset movement among all DApps.

Developers can use the tools offered by the Asch platform to build an entire blockchain. Notably, these new blockchains can be linked to Asch’s main chain or even Bitcoin's blockchain. Normal users may download, install, and utilize a variety of decentralized apps via Asch’s built-in app store. The Asch system offers several types of decentralized applications on which ordinary people may earn by participating in various ways.

The Asch project was launched in 2018 by Qingfeng Shan. 

In the future, the Asch system aspires to be the next-generation incubator for decentralized applications as a proactive, low-cost, one-stop system.