The Recording Industry Association of Japan (or 'RIAJ' for short), has just released the digital recording sales certifications artists achieved during the month of October.

To announce the certifications, the RIAJ works together with almost all of the digital and mobile download portals in Japan, including recochoku, music.jp, mu-mo (Avex), oricon ME, dwango and many more. After compiling the data from all the major download portals, the RIAJ then releases the new certifications on the 20th of every month.

For the RIAJ, the thresholds for digital (online and mobile) certifications are as follows:
Gold - 100,000 downloads, Platinum - 250,000 downloads, Double Platinum 500,000 downloads, Triple Platinum 750,000 downloads, and Million - 1,000,000+ downloads.

The October certifications are as follows:

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< Chaku-Uta Certifications >

# Triple Platinum

"Heavy Rotation" - AKB48 : 2010/07/28

*Chaku-Uta only has certifications for Double Platinum, Triple Platinum, and Million!

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< Chaku-Uta Full Certifications >

# Triple Platinum

"Toilet no Kamisama" - Uemura Kana : 2010/07/14

# Double Platinum

"Everyday, Kachusha" - AKB48 : 2011/05/18

"Suki da yo. ~100-kai no Koukai~" - Sonar Pocket : 2010/12/15

# Platinum

"Last Christmas (Single Version)" - Wham! : 2004/11/04

# Gold

"Warattetainda" - Ikimonogakari : 2011/07/20

"Uninstall" - Ishikawa Chiaki : 2007/06/13

"Rising Sun" - EXILE : 2011/09/14

"15 no Yoru" - Ozaki Yutaka : 2009/05/01

"CRAZY FOR YOU" - Kylee : 2011/09/21

"Kimi Janakya duet with Yasuda Nao" - KG : 2011/08/31

"Kimi ni Ienakatta Omoi duet with May J." - KG : 2009/11/25

"365 Nichi no Love Story" - Sonar Pocket : 2011/10/05

"Omoi feat. YU-A" - Dohzi-T : 2009/12/09

"I Gotta Feeling" - The Black Eyed Peas : 2009/06/03

"Hurry Xmas" - L'Arc?en?Ciel : 2007/11/14

"Yuki no Tsubasa" - redballoon : 2006/11/15

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< Digital (PC) Singles Certifications >

None

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< Digital (PC) Albums Certifications >

None

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Source: RIAJ