Unless otherwise ordered by the court, directed by the principal, or provided by a power of attorney, a custodian shall disclose to an agent with specific authority over the digital assets or with general authority to act on behalf of the principal a catalog of electronic communications sent or received by the principal, and digital assets of the principal, except the content of electronic communications, if the agent gives the custodian:

1. (1)
   A written request for disclosure which is in physical or electronic form;
2. (2)
   An original or a copy of the power of attorney which gives the agent specific authority over digital assets or general authority to act on behalf of the principal;
3. (3)
   A certification by the agent, under penalty of perjury, that the power of attorney is in effect; and
4. (4)
   If requested by the custodian:

   1. (a)
      A number, username, address, or other unique subscriber or account identifier assigned by the custodian to identify the principal’s account; or
   2. (b)
      Evidence linking the account to the principal.