2310.3 (D) (1) (A) The Date of Execution and Date of Publication
If the grant did not convey the right to publish the work, then as discussed in Section 2310.3 (C) (2), the beginning and the ending of the termination period are based on the date the grant was executed. If the grant conveyed the right of publication, then as discussed in Section 2310.3 (C) (1), the beginning and ending of this period may be based on the date of execution or the date of publication under the grant (whichever is earlier).
For these reasons, the notice must specify the date the grant was executed. (If the termination involves a gap grant, then as discussed in Section 2310.3 (C) (3), the notice may be recorded if it states that the date of execution is the date that the work was created.) If the grant conveyed the right to publish the work, the notice must specify the date that the work was first published under the grant.