What network are Ordinals on?

Could you elaborate on the network that Ordinals operate on? I'm curious to understand the underlying infrastructure that supports this cryptocurrency and its transactions. Is it a decentralized network like Ethereum, or does it utilize a different blockchain technology? I'm also interested in knowing if there are any specific features or advantages that the Ordinals network provides, compared to other popular blockchain platforms. Understanding the network's architecture and ecosystem is crucial for investors and enthusiasts alike.