The phrase "albeit hidden" is correct and usable in written English.
It can be used to introduce a contrasting idea, indicating that something exists or is true, even if it is not immediately visible or obvious.
Example: "The treasure was buried deep beneath the ground, albeit hidden from plain sight."
Alternatives: "although concealed" or "even if obscured".
A quick hunt through her archives reveals plenty of gems, albeit hidden within a few too many words.
We could be extras in a movie, albeit hidden in a corner because they haven't been to hair and make-up.
Restitution is normally sought, often in monthly payments or a lump sum, in the case of people of substantial, albeit hidden, means.
The songs melt into each other; the tape doesn't tell a straight story so much as transmit her wobbling mood, albeit hidden in the jauntiest of bangers.
That has given Cuban-Americans an increasing, albeit hidden, stake in the island's economic future.The laws of both the United States and Cuba have forbidden such money to be treated as investment.
Even the lucky few at the top of the new hierarchy would remain insecure, exposed to the envy and malice of those below, albeit hidden behind a show of deference and civility.
But the aboveground pool is alive and well (albeit often hidden behind rows of attached homes), especially for urbanites who cannot easily get to nice beaches or shy away from public pools.
The Raspberry Pi computers that Brendan O'Connor has used for his project are also hidden, albeit for very different reasons.
Systems of indentured servitude and forced labor continued throughout the decades, and although slavery is certainly illegal today, it endures nevertheless, and in fact proves just as, if not more brutal, albeit much more hidden.
Whereas Pitbull chooses to keep the microphone close to his mouth -- albeit to hide his lip movements -- Brown blatantly pulls the mic away and busts a move while the vocal track keeps on rolling.
It's through this view that Samus can discover hidden items, interact with objects and launch missiles, albeit while stationary.
