BTS' new album 'Proof' sold over 2m on 1st day of release

Bts V - Layover 1st Solo Album (Random) : Baby

BTS's 'Proof' wraps up first-week sales with the 2nd highest record of all time, just behind 'Map of the Soul: 7

The World's Biggest First Week Album Sales, by Sheldon Rocha Leal, PhD

10 best-selling K-pop albums of all time on Hanteo

Tracklist of final CD released for BTS's new album 'Proof

Proof, Kpop Wiki

BTS unveils the first set of concept photos for the upcoming anthology album 'Proof

List of best-selling albums in South Korea - Wikipedia

Everything We Know About BTS's Proof Album - Dates and Tracklist

BTS' Kim Taehyung aka V posts thirst traps; Jimin shares heartfelt note for ARMY after Proof's release – India TV

BTS albums and songs sales - ChartMasters