What is Aura Coin?

As a professional in the realm of cryptocurrency and finance, I often encounter numerous digital currencies, each with their own unique selling points and use cases. One such coin that has piqued my interest is Aura Coin. Could you elaborate on what Aura Coin is? I understand it's a digital asset, but what sets it apart from the likes of Bitcoin, Ethereum, or other altcoins? What is its underlying technology? What are the key features that Aura Coin aims to deliver to its users? And finally, what kind of applications or use cases do you see Aura Coin being utilized for in the near future? I'm eager to learn more about this intriguing cryptocurrency.