Cryptoverse: Bitcoin miners make money ahead of 'halving'

FILE PHOTO: A bitcoin is seen in an illustration picture taken at La Maison du Bitcoin in Paris, France, June 23, 2017. REUTERS/Benoit Tessier/File Photo

(Reuters) - Bitcoin miners are making hay while the sun shines.

The business has been yanked out of the doldrums by the cryptocurrency's recent rally - and now mining companies are racing to lock in profits before bitcoin's "halving", when rewards for producing the tokens are cut in half.