3. The publication notice may be directed to all persons known, alleged, presumed, or claiming to be the father, mother, or legal guardian of the child. If the name of a party is unknown, the notice shall be directed to the unknown father, mother, or legal guardian, as applicable, and such notice, when published pursuant to this subsection, shall apply to and be binding upon those persons whose names are unknown. The notice shall contain the name of the court and the case number, the initials of the child who is the subject of the proceedings, the date and location of the birth of the child, the name of the mother and father of the child, if known, the time and date of the hearing, and the purpose of the hearing. The notice shall also contain, in type at least as large as the balance of the document, the following or substantially similar language: "FAILURE TO APPEAR AT THIS HEARING CONSTITUTES CONSENT TO THE ADJUDICATION OF THIS CHILD AS A DEPRIVED CHILD AND MAY ULTIMATELY RESULT IN LOSS OF CUSTODY OF THIS CHILD OR THE TERMINATION OF PARENTAL RIGHTS TO THIS CHILD."
An affidavit showing publication of the notice shall be filed with the court clerk. The publication of notice shall be deemed equivalent to personal service upon all persons, known or unknown, who have been designated in the notice.