; or (II) the digital music provider has had a blanket license terminated by the mechanical licensing collective within the past 3 years pursuant to paragraph (4)(E). (iv) If a notice of license is rejected under clause (iii)(I), the digital music provider shall have 30 calendar days after receipt of the notice of rejection to cure any deficiency and submit an amended notice of license to the mechanical licensing collective. If the deficiency has been cured, the mechanical licensing collective shall so confirm in writing, and the license shall be effective as of the date that the original notice of license was provided by the digital music provider. (v) A digital music provider that believes a notice of license was improperly rejected by the mechanical licensing collective may seek review of such rejection in Federal district court. The district court shall determine the matter de novo based on the record before the mechanical licensing collective and any additional evidence presented by the parties. (B) Blanket license effective date Blanket licenses shall be made available by the mechanical licensing collective on and after the license availability date. No such license shall be effective prior to the license availability date. (3) Mechanical licensing collective (A) In general The mechanical licensing collective shall be a single entity that— (i) is a nonprofit, not owned by any other entity, that is created by copyright owners to carry out responsibilities under this subsection; (ii) is endorsed by and enjoys substantial support from musical work copyright owners that together represent the greatest percentage of the licensor market for uses of such works in covered activities, as measured over the preceding 3 full calendar years; (iii) is able to demonstrate to the Register of Copyrights that it has, or will have prior to the license availability date, the administrative and technological capabilities to perform the required functions of the mechanical licensing collective under this subsection