I really don't understand what you meant by
bitcoin management system, can you explain what kind of system you have in mind to manage Bitcoins? Anyways, both the names are good, but I always suggest to go for a brandable name rather. Think of the big brands, most of their domain has hardly the keyword in their name, but is famous.
I'd have to agree with this, both names don't really sound good and if I heard a name like that, I wouldn't really be thinking of a specific company, it's just too descriptive and doesn't have a ring to it.
It's far better to go looking through a keyword database and look for something that just sound good, but doesn't necessarily have a Bitcoin related keyword in it.