"Muserk LLC (Muserk Rights Management)" is a US copyright management company specializing in mechanical rights management for online distribution use.
JASRAC has concluded an administration services agreement with Muserk LLC from March 2020, regarding the collection of mechanical royalties on YouTube in the United States.
Muserk LLC appears on YouTube under the name "Muserk Rights Management".
Muserk LLC (Muserk Rights Management) is a legitimate rights administrator mandated by JASRAC.