B. A system satisfies subsection A and a person is deemed to have control of an electronic document of title if the document is created, stored and assigned in such a manner that:

1. 1. A single authoritative copy of the document exists that is unique, identifiable and, except as otherwise provided in paragraphs 4, 5, and 6, unalterable;

2. 2. The authoritative copy identifies the person asserting control as:

   1. (a) The person to which the document was issued; or
   2. (b) If the authoritative copy indicates that the document has been transferred, the person to which the document was most recently transferred;
3. 3. The authoritative copy is communicated to and maintained by the person asserting control or its designated custodian;
4. 4. Copies or amendments that add or change an identified assignee of the authoritative copy can be made only with the consent of the person asserting control;
5. 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. 6. Any amendment of the authoritative copy is readily identifiable as authorized or unauthorized.