No, Bitcoin is the exact opposite of the mark of the beast.
The mark is meant to restrict freedom of exchange, and has centralized control as a required feature. No one is able to transact unless they submit to that central authority.
#Bitcoin, on the other hand, is entirely permissionless and has no centralized authority over it; no one we must bow the knee to in order to use it whatsoever.
But too many dispensationals have this idea stuck in their heads that any worldwide digital currency is either the mark of the beast itself or is paving the way for it. They're also usually doomer gold-bugs. They can hfsp.