Control of electronic chattel paper.

(a) A secured party has control of electronic chattel paper if a system employed for evidencing the transfer of interests in the chattel paper reliably establishes the secured party as the person to which the chattel paper was assigned.

(b) A system satisfies (a) of this section if the record or records comprising the chattel paper are created, stored, and assigned in such a manner that (1) a single authoritative copy of the record or records exists that is unique, identifiable, and, except as otherwise provided in (4) — (6) of this subsection, unalterable;

(2) the authoritative copy identifies the secured party as the assignee of the record or records;

(3) the authoritative copy is communicated to and maintained by the secured party or its designated custodian;

(4) copies or amendments that add or change an identified assignee of the authoritative copy can be made only with the consent of the secured party;

(5) each copy of the authoritative copy and any copy of a copy is readily identifiable as a copy that is not the authoritative copy; and

(6) any amendment of the authoritative copy is readily identifiable as authorized or unauthorized.