The value of bitcoin has dropped over recent days, and is yet to properly recover.
The volatile cryptocurrency hit a record high when it passed $19,850 in mid-December, but then tumbled rapidly, falling to below $12,000 within days.
Its value shifted unpredictably over the following weeks, but appeared to be on the up again after the turn of the year.
It is worth $13,642 as of Friday afternoon UK time, according to the Coinbase exchange. Earlier this morning, it dropped just below the $13,000 mark.