What network is shx on?

I'm curious, can you clarify which blockchain network or platform does the cryptocurrency token or asset labeled "SHX" operate on? Is it a native token of a particular blockchain ecosystem, or is it built on a smart contract platform like Ethereum? I'm trying to understand the technological underpinnings and infrastructure that supports the transactions and operations of SHX. Can you provide more details about the network and how it fits into the broader cryptocurrency landscape?