How much is $1 USD now?

Could you please elaborate on the current exchange rate for one US Dollar, particularly in the context of cryptocurrencies and finance? Given the volatile nature of digital currencies, I'm curious to know the approximate value of $1 USD in terms of the major cryptocurrencies such as Bitcoin, Ethereum, or any other relevant digital assets. Additionally, I'm also interested in understanding how this value may have fluctuated over the past few days or weeks, and what factors are typically driving such changes. Could you provide a snapshot of the current state and any insights into potential trends?