<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDIvNGVjZjNlOGYtMmVhZi00OWQ0LWIxMzUtZWQ1Mzk0ZmIyNzgxLmpwZw==.jpg"></p><p>At its automated readjustment on Feb. 15, Bitcoin mining difficulty was due to increase by an estimated 6%.</p>