What is a silver coin value?

I've often come across references to the concept of silver coin value, especially in discussions around cryptocurrencies and alternative assets. Could you possibly shed some light on what exactly a silver coin value entails? Is it a direct correlation to the physical value of silver, or is it a metaphorical reference to the perceived worth of a particular digital asset? How does one determine the silver coin value of, say, a Bitcoin or an Ethereum token? Is there a standardized formula or metric that investors use to gauge this value? Your insights would be greatly appreciated.