Spanish to English Law/Patents Law (general) notarial statement on power of attorney for minor child

PASO ANTE MÍ: Al reverso del folio número ___ de mi Protocolo número ___ que llevo en el presente año y a solicitud del compareciente, libro este Primer Testimonio en una hoja de papel de Ley que firmo rubrico y sello en la ciudad de ____, departamento de Managua [Nicaragua] a las [date and time].

From research, I gather that the notary prepared the original document himself and is also placing it in his protocol book, in this case, on a legal-sized sheet of paper, right? His name is on the document and also on this notarial statement.

Besides how to translate this into U.S. English, before the paragraph begins as it is written here, another reason I'm asking is: Original documents have original signatures. Unfortunately the document I´ve been given to translate was scanned and sent to me by e-mail by a school registrar and I did not get to see what the child´s guardian brought, which is frustrating to me because the guardian is not around for me to ask about it. The document that accompanies this ¨paso ante mí¨ has illegible (to me, at least) stamps and/or seals, so I can't tell if this is a certified copy of the original--probably. At the end of the document, instead of actual signatures, it has: (f) ilegible. (F) Ilegible. XXXXX. Notario. This makes me think that somebody either typed this from seeing the original or it might be a translation from a tribal language into Spanish.

I appreciate help!