After testing the bottom on 18 JUN which is an old resistance level of 11 DEC 2017, Bitcoin started accumulating and preparing for a reversal by forming a triple bottom pattern.
Monday Bitcoin broke the 21779-resistance level that has held for more than 3 weeks.
The next target will be 29000, that is the last solid support from 28 MAY and the 100 MA in the 1D chart.