RIAJ Digital Track Chart


The RIAJ Digital Track chart was a record chart that ranks the best selling digital singles in Japan, with data provided by the Recording Industry Association of Japan from April 2009. The chart measures cellphone downloads . On July 27, 2012, the service that tracked the charts was shut down.

History

The RIAJ originally started certifying digital downloads in August 2006. At the same time, they began posting a monthly chart called the Reco-kyō Chart. This now defunct chart ranked the highest Chaku-uta downloads for the month. The chart was disbanded in March 2009, and was replaced by the identically named weekly Chaku-Uta Full chart.

Methodology

The chart week runs from Wednesday to Tuesday and updated on every Friday at 11 a.m. The first number-one song on this chart was "It's All Love!" by Kumi Koda and Misono.
At first, the data was sourced from five providers: Dwango, Mora, Mu-Mo, music.jp and Recochoku. On February 19, 2010, RIAJ announced that the data became the more expanded data sourced from 14 providers.

Records

Only three non-domestic artists have ever broken the top 10 charts: Michael Jackson's "Thriller" at #7 in June 2009 and the Backstreet Boys' "Straight Through My Heart" at #4 in September 2009 and Lady Gaga feat. Beyoncé's "Telephone" at #5 in April 2010.

Songs with the most weeks at number one

;4 weeks
;3 weeks
;2 weeks