; (C) information regarding the history of upgrades to the source code for such blockchain system during the previous 3 months, including— (i) a description of any consensus or agreement process utilized to process or approve changes to the source code; (ii) a list of any material changes to the source code, the purpose and effect of the changes, and the contributor of the changes, if known; and (iii) any changes to the source code made by the digital asset issuer, a related person, or an affiliated person; (D) information regarding any activities conducted to market the digital asset which relates to the blockchain system during the previous 3 months by the digital asset issuer or an affiliated person of the digital asset issuer; and (E) information regarding any issuance of a unit of the digital asset which relates to such blockchain system during the previous 12 months; and (5) with respect to a blockchain system for which a certification has previously been rebutted under this section or withdrawn under section 5i(m) of the Commodity Exchange Act, specific information relating to the analysis provided in subsection (f)(2) in connection with such rebuttal or such section 5i(m)(1)(C) in connection with such withdrawal. (c) Rebuttable presumption The Commission may rebut a certification described under subsection (a) with respect to a blockchain system if the Commission, within 60 days of receiving such certification, determines that the blockchain system is not a decentralized system. (d) Certification review (1) In general Any blockchain system that relates to a digital asset for which a certification has been made under subsection (a) shall be considered a decentralized system 60 days after the date on which the Commission receives a certification under subsection (a), unless the Commission notifies the person who made the certification within such time that the Commission is staying the certification due to— (A) an inadequate explanation by the person making the certification