Brave co-founder and Chief Executive Officer Brendan Eich revealed this in a recent tweet. Eich also said that Brave has 12.2 monthly users as well.
There are no Brave publishers on Soundcloud.
In October last year, Brave announced that its monthly active user count has hit 8 million. At the time, it said its daily user count hit 2.8 million. Brave had also earlier allowed people to tip accounts via Twitter.